+/* vi: set sw=4 ts=4: */
/*
* httpd implementation for busybox
*
* Copyright (C) 2002,2003 Glenn Engel <glenne@engel.org>
- * Copyright (C) 2003 Vladimir Oleynik <dzo@simtreas.ru>
+ * Copyright (C) 2003-2006 Vladimir Oleynik <dzo@simtreas.ru>
*
* simplify patch stolen from libbb without using strdup
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
*****************************************************************************
*
*
* When a url contains "cgi-bin" it is assumed to be a cgi script. The
* server changes directory to the location of the script and executes it
- * after setting QUERY_STRING and other environment variables. If url args
- * are included in the url or as a post, the args are placed into decoded
- * environment variables. e.g. /cgi-bin/setup?foo=Hello%20World will set
- * the $CGI_foo environment variable to "Hello World" while
- * CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV enabled.
+ * after setting QUERY_STRING and other environment variables.
*
* The server can also be invoked as a url arg decoder and html text encoder
* as follows:
- * foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
- * bar=`httpd -e "<Hello World>"` # encode as "%3CHello%20World%3E"
+ * foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
+ * bar=`httpd -e "<Hello World>"` # encode as "<Hello World>"
+ * Note that url encoding for arguments is not the same as html encoding for
+ * presentation. -d decodes a url-encoded argument while -e encodes in html
+ * for page display.
*
* httpd.conf has the following format:
+ *
+ * A:172.20. # Allow address from 172.20.0.0/16
+ * A:10.0.0.0/25 # Allow any address from 10.0.0.0-10.0.0.127
+ * A:10.0.0.0/255.255.255.128 # Allow any address that previous set
+ * A:127.0.0.1 # Allow local loopback connections
+ * D:* # Deny from other IP connections
+ * /cgi-bin:foo:bar # Require user foo, pwd bar on urls starting with /cgi-bin/
+ * /adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
+ * /adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
+ * .au:audio/basic # additional mime type for audio.au files
+ * *.php:/path/php # running cgi.php scripts through an interpreter
+ *
+ * A/D may be as a/d or allow/deny - first char case insensitive
+ * Deny IP rules take precedence over allow rules.
+ *
+ *
+ * The Deny/Allow IP logic:
+ *
+ * - Default is to allow all. No addresses are denied unless
+ * denied with a D: rule.
+ * - Order of Deny/Allow rules is significant
+ * - Deny rules take precedence over allow rules.
+ * - If a deny all rule (D:*) is used it acts as a catch-all for unmatched
+ * addresses.
+ * - Specification of Allow all (A:*) is a no-op
+ *
+ * Example:
+ * 1. Allow only specified addresses
+ * A:172.20 # Allow any address that begins with 172.20.
+ * A:10.10. # Allow any address that begins with 10.10.
+ * A:127.0.0.1 # Allow local loopback connections
+ * D:* # Deny from other IP connections
+ *
+ * 2. Only deny specified addresses
+ * D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
+ * D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
+ * A:* # (optional line added for clarity)
+ *
+ * If a sub directory contains a config file it is parsed and merged with
+ * any existing settings as if it was appended to the original configuration.
+ *
+ * subdir paths are relative to the containing subdir and thus cannot
+ * affect the parent rules.
+ *
+ * Note that since the sub dir is parsed in the forked thread servicing the
+ * subdir http request, any merge is discarded when the process exits. As a
+ * result, the subdir settings only have a lifetime of a single request.
+ *
+ *
+ * If -c is not set, an attempt will be made to open the default
+ * root configuration file. If -c is set and the file is not found, the
+ * server exits with an error.
+ *
+*/
+
-A:172.20. # Allow any address that begins with 172.20
-A:10.10. # Allow any address that begins with 10.10.
-A:10.10 # Allow any address that previous set and 10.100-109.X.X
-A:127.0.0.1 # Allow local loopback connections
-D:* # Deny from other IP connections
-/cgi-bin:foo:bar # Require user foo, pwd bar on urls starting with /cgi-bin/
-/adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
-/adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
-.au:audio/basic # additional mime type for audio.au files
-
-A shortes path and D:from[^*] automaticaly sorting to top.
-All longest path can`t reset user:password if shorted protect setted.
-
-A/D may be as a/d or allow/deny - first char case unsensitive parsed only.
-
-Each subdir can have config file.
-For protect as user:pass current subdir and subpathes set from subdir config:
-/:user:pass
-if not, other subpathes for give effect must have path from httpd root
-/current_subdir_path_from_httpd_root/subpath:user:pass
-
-The Deny/Allow IP logic:
-
- 1. Allow all:
-The config don`t set D: lines
-
- 2. Allow from setted only:
-see the begin format example
-
- 3. Set deny, allow from other:
-D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
-D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
-A:* # allow from other, this line not strongly require
-
- A global and subdirs config merging logic:
-allow rules reducing, deny lines strongled.
- The algorithm combinations:
-
- 4. If current config have
-A:from
-D:*
- subdir config A: lines skiping, D:from - moving top
-
- 5. If current config have
-D:from
-A:*
- result config:
-D:from current
-D:from subdir
-A:from subdir
- and seting D:* if subdir config have this
-
- If -c don`t setted, used httpd root config, else httpd root config skiped.
- Exited with fault if can`t open start config.
- For set wide open server, use -c /dev/null ;=)
- */
-
-#include <stdio.h>
-#include <ctype.h> /* for isspace */
-#include <string.h>
-#include <stdlib.h> /* for malloc */
-#include <time.h>
-#include <unistd.h> /* for close */
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/socket.h> /* for connect and socket*/
-#include <netinet/in.h> /* for sockaddr_in */
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <fcntl.h> /* for open modes */
#include "busybox.h"
-static const char httpdVersion[] = "busybox httpd/1.20 31-Jan-2003";
-static const char default_patch_httpd_conf[] = "/etc";
+static const char httpdVersion[] = "busybox httpd/1.35 6-Oct-2004";
+static const char default_path_httpd_conf[] = "/etc";
static const char httpd_conf[] = "httpd.conf";
-static const char home[] = "/www";
+static const char home[] = "./";
-// Note: xfuncs are not used because we want the server to keep running
+#if ENABLE_LFS
+# define cont_l_fmt "%lld"
+# define cont_l_type (long long)
+#else
+# define cont_l_fmt "%ld"
+# define cont_l_type (long)
+#endif
+
+#define TIMEOUT 60
+
+// Note: busybox xfuncs are not used because we want the server to keep running
// if something bad happens due to a malformed user request.
// As a result, all memory allocation after daemonize
// is checked rigorously
//#define DEBUG 1
-/* Configure options, disabled by default as nonstandart httpd feature */
-//#define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-//#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-//#define CONFIG_FEATURE_HTTPD_DECODE_URL_STR
-
-/* disabled as not necessary feature */
-//#define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
-//#define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
-//#define CONFIG_FEATURE_HTTPD_SETUID
-//#define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
-
-/* If seted this you can use this server from internet superserver only */
-//#define CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-
-/* You can use this server as standalone, require libbb.a for linking */
-//#define HTTPD_STANDALONE
-
-/* Config options, disable this for do very small module */
-//#define CONFIG_FEATURE_HTTPD_CGI
-//#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
-
-#ifdef HTTPD_STANDALONE
-/* standalone, enable all features */
-#undef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-/* unset config option for remove warning as redefined */
-#undef CONFIG_FEATURE_HTTPD_BASIC_AUTH
-#undef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-#undef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-#undef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
-#undef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
-#undef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
-#undef CONFIG_FEATURE_HTTPD_CGI
-#undef CONFIG_FEATURE_HTTPD_SETUID
-#undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
-/* enable all features now */
-#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
-#define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
-#define CONFIG_FEATURE_HTTPD_DECODE_URL_STR
-#define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
-#define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
-#define CONFIG_FEATURE_HTTPD_CGI
-#define CONFIG_FEATURE_HTTPD_SETUID
-#define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
-
-/* require from libbb.a for linking */
-const char *applet_name = "httpd";
-
-void show_usage(void)
-{
- fprintf(stderr, "Usage: %s [-p <port>] [-c configFile] [-d/-e <string>] "
- "[-r realm] [-u user]\n", applet_name);
- exit(1);
-}
+#ifndef DEBUG
+# define DEBUG 0
#endif
-#ifdef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-#undef CONFIG_FEATURE_HTTPD_SETUID /* use inetd user.group config settings */
-#undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP /* so is not daemon */
-/* inetd set stderr to accepted socket and we can`t true see debug messages */
-#undef DEBUG
-#endif
-
-/* CGI environ size */
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-#define ENVSIZE 50 /* set max 35 CGI_variable */
-#else
-#define ENVSIZE 15 /* minimal requires */
-#endif
-
-#define MAX_POST_SIZE (64*1024) /* 64k. Its Small? May be ;) */
-
#define MAX_MEMORY_BUFF 8192 /* IO buffer */
typedef struct HT_ACCESS {
char before_colon[1]; /* really bigger, must last */
} Htaccess;
-typedef struct
-{
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- char *envp[ENVSIZE+1];
- int envCount;
-#endif
- char buf[MAX_MEMORY_BUFF];
+typedef struct HT_ACCESS_IP {
+ unsigned int ip;
+ unsigned int mask;
+ int allow_deny;
+ struct HT_ACCESS_IP *next;
+} Htaccess_IP;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- const char *realm;
-#endif
- const char *configFile;
+typedef struct {
+ char buf[MAX_MEMORY_BUFF];
+
+ USE_FEATURE_HTTPD_BASIC_AUTH(const char *realm;)
+ USE_FEATURE_HTTPD_BASIC_AUTH(char *remoteuser;)
+
+ const char *query;
- char rmt_ip[16]; /* for set env REMOTE_ADDR */
- unsigned port; /* server initial port and for
- set env REMOTE_PORT */
+ USE_FEATURE_HTTPD_CGI(char *referer;)
- const char *found_mime_type;
- off_t ContentLength; /* -1 - unknown */
- time_t last_mod;
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- int accepted_socket;
-#define a_c_r config->accepted_socket
-#define a_c_w config->accepted_socket
- int debugHttpd; /* if seted, don`t stay daemon */
+ const char *configFile;
+
+ unsigned int rmt_ip;
+#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
+ char rmt_ip_str[16]; /* for set env REMOTE_ADDR */
+#endif
+ unsigned port; /* server initial port and for
+ set env REMOTE_PORT */
+ union HTTPD_FOUND {
+ const char *found_mime_type;
+ const char *found_moved_temporarily;
+ } httpd_found;
+
+ off_t ContentLength; /* -1 - unknown */
+ time_t last_mod;
+
+ Htaccess_IP *ip_a_d; /* config allow/deny lines */
+ int flg_deny_all;
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ Htaccess *auth; /* config user:password lines */
+#endif
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ Htaccess *mime_a; /* config mime types */
+#endif
+
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ int accepted_socket;
+# define a_c_r config->accepted_socket
+# define a_c_w config->accepted_socket
#else
-#define a_c_r 0
-#define a_c_w 1
+# define a_c_r 0
+# define a_c_w 1
+#endif
+ volatile int alarm_signaled;
+
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ Htaccess *script_i; /* config script interpreters */
#endif
- Htaccess *Httpd_conf_parsed;
} HttpdConfig;
static HttpdConfig *config;
-static const char request_GET[] = "GET"; /* size algorithic optimize */
+static const char request_GET[] = "GET"; /* size algorithmic optimize */
static const char* const suffixTable [] = {
-/* Warning: shorted equalent suffix in one line must be first */
- ".htm.html", "text/html",
- ".jpg.jpeg", "image/jpeg",
- ".gif", "image/gif",
- ".png", "image/png",
- ".txt.h.c.cc.cpp", "text/plain",
- ".css", "text/css",
- ".wav", "audio/wav",
- ".avi", "video/x-msvideo",
- ".qt.mov", "video/quicktime",
- ".mpe.mpeg", "video/mpeg",
- ".mid.midi", "audio/midi",
- ".mp3", "audio/mpeg",
+/* Warning: shorted equivalent suffix in one line must be first */
+ ".htm.html", "text/html",
+ ".jpg.jpeg", "image/jpeg",
+ ".gif", "image/gif",
+ ".png", "image/png",
+ ".txt.h.c.cc.cpp", "text/plain",
+ ".css", "text/css",
+ ".wav", "audio/wav",
+ ".avi", "video/x-msvideo",
+ ".qt.mov", "video/quicktime",
+ ".mpe.mpeg", "video/mpeg",
+ ".mid.midi", "audio/midi",
+ ".mp3", "audio/mpeg",
#if 0 /* unpopular */
- ".au", "audio/basic",
- ".pac", "application/x-ns-proxy-autoconfig",
- ".vrml.wrl", "model/vrml",
+ ".au", "audio/basic",
+ ".pac", "application/x-ns-proxy-autoconfig",
+ ".vrml.wrl", "model/vrml",
#endif
- 0, "application/octet-stream" /* default */
- };
+ 0, "application/octet-stream" /* default */
+};
-typedef enum
-{
- HTTP_OK = 200,
- HTTP_UNAUTHORIZED = 401, /* authentication needed, respond with auth hdr */
- HTTP_NOT_FOUND = 404,
- HTTP_NOT_IMPLEMENTED = 501, /* used for unrecognized requests */
- HTTP_BAD_REQUEST = 400, /* malformed syntax */
- HTTP_FORBIDDEN = 403,
- HTTP_INTERNAL_SERVER_ERROR = 500,
+typedef enum {
+ HTTP_OK = 200,
+ HTTP_MOVED_TEMPORARILY = 302,
+ HTTP_BAD_REQUEST = 400, /* malformed syntax */
+ HTTP_UNAUTHORIZED = 401, /* authentication needed, respond with auth hdr */
+ HTTP_NOT_FOUND = 404,
+ HTTP_FORBIDDEN = 403,
+ HTTP_REQUEST_TIMEOUT = 408,
+ HTTP_NOT_IMPLEMENTED = 501, /* used for unrecognized requests */
+ HTTP_INTERNAL_SERVER_ERROR = 500,
#if 0 /* future use */
- HTTP_CONTINUE = 100,
- HTTP_SWITCHING_PROTOCOLS = 101,
- HTTP_CREATED = 201,
- HTTP_ACCEPTED = 202,
- HTTP_NON_AUTHORITATIVE_INFO = 203,
- HTTP_NO_CONTENT = 204,
- HTTP_MULTIPLE_CHOICES = 300,
- HTTP_MOVED_PERMANENTLY = 301,
- HTTP_MOVED_TEMPORARILY = 302,
- HTTP_NOT_MODIFIED = 304,
- HTTP_PAYMENT_REQUIRED = 402,
- HTTP_BAD_GATEWAY = 502,
- HTTP_SERVICE_UNAVAILABLE = 503, /* overload, maintenance */
- HTTP_RESPONSE_SETSIZE=0xffffffff
+ HTTP_CONTINUE = 100,
+ HTTP_SWITCHING_PROTOCOLS = 101,
+ HTTP_CREATED = 201,
+ HTTP_ACCEPTED = 202,
+ HTTP_NON_AUTHORITATIVE_INFO = 203,
+ HTTP_NO_CONTENT = 204,
+ HTTP_MULTIPLE_CHOICES = 300,
+ HTTP_MOVED_PERMANENTLY = 301,
+ HTTP_NOT_MODIFIED = 304,
+ HTTP_PAYMENT_REQUIRED = 402,
+ HTTP_BAD_GATEWAY = 502,
+ HTTP_SERVICE_UNAVAILABLE = 503, /* overload, maintenance */
+ HTTP_RESPONSE_SETSIZE = 0xffffffff
#endif
} HttpResponseNum;
-typedef struct
-{
- HttpResponseNum type;
- const char *name;
- const char *info;
+typedef struct {
+ HttpResponseNum type;
+ const char *name;
+ const char *info;
} HttpEnumString;
static const HttpEnumString httpResponseNames[] = {
- { HTTP_OK, "OK" },
- { HTTP_NOT_IMPLEMENTED, "Not Implemented",
- "The requested method is not recognized by this server." },
- { HTTP_UNAUTHORIZED, "Unauthorized", "" },
- { HTTP_NOT_FOUND, "Not Found",
- "The requested URL was not found on this server." },
- { HTTP_BAD_REQUEST, "Bad Request" ,
- "Unsupported method." },
- { HTTP_FORBIDDEN, "Forbidden", "" },
- { HTTP_INTERNAL_SERVER_ERROR, "Internal Server Error"
- "Internal Server Error" },
-#if 0
- { HTTP_CREATED, "Created" },
- { HTTP_ACCEPTED, "Accepted" },
- { HTTP_NO_CONTENT, "No Content" },
- { HTTP_MULTIPLE_CHOICES, "Multiple Choices" },
- { HTTP_MOVED_PERMANENTLY, "Moved Permanently" },
- { HTTP_MOVED_TEMPORARILY, "Moved Temporarily" },
- { HTTP_NOT_MODIFIED, "Not Modified" },
- { HTTP_BAD_GATEWAY, "Bad Gateway", "" },
- { HTTP_SERVICE_UNAVAILABLE, "Service Unavailable", "" },
+ { HTTP_OK, "OK", NULL },
+ { HTTP_MOVED_TEMPORARILY, "Found", "Directories must end with a slash." },
+ { HTTP_REQUEST_TIMEOUT, "Request Timeout",
+ "No request appeared within a reasonable time period." },
+ { HTTP_NOT_IMPLEMENTED, "Not Implemented",
+ "The requested method is not recognized by this server." },
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ { HTTP_UNAUTHORIZED, "Unauthorized", "" },
+#endif
+ { HTTP_NOT_FOUND, "Not Found",
+ "The requested URL was not found on this server." },
+ { HTTP_BAD_REQUEST, "Bad Request", "Unsupported method." },
+ { HTTP_FORBIDDEN, "Forbidden", "" },
+ { HTTP_INTERNAL_SERVER_ERROR, "Internal Server Error",
+ "Internal Server Error" },
+#if 0 /* not implemented */
+ { HTTP_CREATED, "Created" },
+ { HTTP_ACCEPTED, "Accepted" },
+ { HTTP_NO_CONTENT, "No Content" },
+ { HTTP_MULTIPLE_CHOICES, "Multiple Choices" },
+ { HTTP_MOVED_PERMANENTLY, "Moved Permanently" },
+ { HTTP_NOT_MODIFIED, "Not Modified" },
+ { HTTP_BAD_GATEWAY, "Bad Gateway", "" },
+ { HTTP_SERVICE_UNAVAILABLE, "Service Unavailable", "" },
#endif
};
static const char Content_length[] = "Content-length:";
-/*
- * sotring to:
- * .ext:mime/type
- * /path:user:pass
- * /path/subdir:user:pass
- * D:from
- * A:from
- * D:*
- */
-static int conf_sort(const void *p1, const void *p2)
+static int scan_ip(const char **ep, unsigned int *ip, unsigned char endc)
{
- const Htaccess *cl1 = *(const Htaccess **)p1;
- const Htaccess *cl2 = *(const Htaccess **)p2;
- char c1 = cl1->before_colon[0];
- char c2 = cl2->before_colon[0];
- int test;
-
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- /* .ext line up before other lines for simlify algorithm */
- test = c2 == '.';
- if(c1 == '.')
- return -(!test);
- if(test)
- return test;
-#endif
-
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- test = c1 == '/';
- /* /path line up before A/D lines for simlify algorithm */
- if(test) {
- if(c2 != '/')
- return -test;
- /* a shortes path with user:pass must be first */
- return strlen(cl1->before_colon) - strlen(cl2->before_colon);
- } else if(c2 == '/')
- return !test;
-#endif
-
- /* D:from must move top */
- test = c2 == 'D' && cl2->after_colon[0] != 0;
- if(c1 == 'D' && cl1->after_colon[0] != 0) {
- return -(!test);
- }
- if(test)
- return test;
-
- /* next lines - A:from */
- test = c2 == 'A' && cl2->after_colon[0] != 0;
- if(c1 == 'A' && cl1->after_colon[0] != 0) {
- return -(!test);
- }
- if(test)
- return test;
-
- /* end lines - D:* */
- test = c2 == 'D' && cl2->after_colon[0] == 0;
- if(c1 == 'D' && cl1->after_colon[0] == 0) {
- return -(!test);
- }
-#ifdef DEBUG
- if(!test)
- error_msg_and_die("sort: can`t found compares!");
-#endif
- return test;
+ const char *p = *ep;
+ int auto_mask = 8;
+ int j;
+
+ *ip = 0;
+ for (j = 0; j < 4; j++) {
+ unsigned int octet;
+
+ if ((*p < '0' || *p > '9') && (*p != '/' || j == 0) && *p != 0)
+ return -auto_mask;
+ octet = 0;
+ while (*p >= '0' && *p <= '9') {
+ octet *= 10;
+ octet += *p - '0';
+ if (octet > 255)
+ return -auto_mask;
+ p++;
+ }
+ if (*p == '.')
+ p++;
+ if (*p != '/' && *p != 0)
+ auto_mask += 8;
+ *ip = ((*ip) << 8) | octet;
+ }
+ if (*p != 0) {
+ if (*p != endc)
+ return -auto_mask;
+ p++;
+ if (*p == 0)
+ return -auto_mask;
+ }
+ *ep = p;
+ return auto_mask;
}
-
-/* flag */
-#define FIRST_PARSE 0
-#define SUBDIR_PARSE 1
-#define SIGNALED_PARSE 2
-
-static void parse_conf(const char *path, int flag)
+static int scan_ip_mask(const char *ipm, unsigned int *ip, unsigned int *mask)
{
-#define bc cur->before_colon[0]
-#define ac cur->after_colon[0]
- FILE *f;
- Htaccess *prev;
- Htaccess *cur;
- const char *cf = config->configFile;
- char buf[80];
- char *p0 = NULL;
- int deny_all = 0; /* default A:* */
- int n = 0; /* count config lines */
-
- if(flag == SUBDIR_PARSE || cf == NULL) {
- cf = p0 = alloca(strlen(path) + sizeof(httpd_conf) + 2);
- if(p0 == NULL) {
- if(flag == FIRST_PARSE)
- error_msg_and_die(memory_exhausted);
- return;
+ int i;
+ unsigned int msk;
+
+ i = scan_ip(&ipm, ip, '/');
+ if (i < 0)
+ return i;
+ if (*ipm) {
+ const char *p = ipm;
+
+ i = 0;
+ while (*p) {
+ if (*p < '0' || *p > '9') {
+ if (*p == '.') {
+ i = scan_ip(&ipm, mask, 0);
+ return i != 32;
+ }
+ return -1;
+ }
+ i *= 10;
+ i += *p - '0';
+ p++;
+ }
}
- sprintf(p0, "%s/%s", path, httpd_conf);
- }
-
- while((f = fopen(cf, "r")) == NULL) {
- if(flag != FIRST_PARSE)
- return; /* subdir config not found */
- if(p0 == NULL) /* if -c option gived */
- perror_msg_and_die("%s", cf);
- p0 = NULL;
- cf = httpd_conf; /* set -c ./httpd_conf */
- }
-
- prev = config->Httpd_conf_parsed;
- if(flag != SUBDIR_PARSE) {
- /* free previous setuped */
- while( prev ) {
- cur = prev;
+ if (i > 32 || i < 0)
+ return -1;
+ msk = 0x80000000;
+ *mask = 0;
+ while (i > 0) {
+ *mask |= msk;
+ msk >>= 1;
+ i--;
+ }
+ return 0;
+}
+
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+static void free_config_lines(Htaccess **pprev)
+{
+ Htaccess *prev = *pprev;
+
+ while (prev) {
+ Htaccess *cur = prev;
+
prev = cur->next;
free(cur);
}
- config->Httpd_conf_parsed = prev; /* eq NULL */
- } else {
- /* parse previous IP logic for merge */
- for(cur = prev; cur; cur = cur->next) {
- if(bc == 'D' && ac == 0)
- deny_all++;
- n++;
- /* find last for set prev->next of merging */
- if(cur != prev)
- prev = prev->next;
- }
- }
+ *pprev = NULL;
+}
+#endif
- /* This could stand some work */
- while ( (p0 = fgets(buf, 80, f)) != NULL) {
- char *p;
- char *colon;
+/* flag */
+#define FIRST_PARSE 0
+#define SUBDIR_PARSE 1
+#define SIGNALED_PARSE 2
+#define FIND_FROM_HTTPD_ROOT 3
+/****************************************************************************
+ *
+ > $Function: parse_conf()
+ *
+ * $Description: parse configuration file into in-memory linked list.
+ *
+ * The first non-white character is examined to determine if the config line
+ * is one of the following:
+ * .ext:mime/type # new mime type not compiled into httpd
+ * [adAD]:from # ip address allow/deny, * for wildcard
+ * /path:user:pass # username/password
+ *
+ * Any previous IP rules are discarded.
+ * If the flag argument is not SUBDIR_PARSE then all /path and mime rules
+ * are also discarded. That is, previous settings are retained if flag is
+ * SUBDIR_PARSE.
+ *
+ * $Parameters:
+ * (const char *) path . . null for ip address checks, path for password
+ * checks.
+ * (int) flag . . . . . . the source of the parse request.
+ *
+ * $Return: (None)
+ *
+ ****************************************************************************/
+static void parse_conf(const char *path, int flag)
+{
+ FILE *f;
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ Htaccess *prev, *cur;
+#elif CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ Htaccess *cur;
+#endif
- for(p = colon = p0; *p; p++) {
- if(*p == '#') {
- *p = 0;
- break;
- }
- if(isspace(*p)) {
- if(p != p0) {
- *p = 0;
- break;
- }
- p0++;
- }
- else if(*p == ':' && colon <= p0)
- colon = p;
+ const char *cf = config->configFile;
+ char buf[160];
+ char *p0 = NULL;
+ char *c, *p;
+
+ /* free previous ip setup if present */
+ Htaccess_IP *pip = config->ip_a_d;
+
+ while (pip) {
+ Htaccess_IP *cur_ipl = pip;
+
+ pip = cur_ipl->next;
+ free(cur_ipl);
}
+ config->ip_a_d = NULL;
+
+ config->flg_deny_all = 0;
- /* test for empty or strange line */
- if (colon <= p0 || colon[1] == 0)
- continue;
- if(colon[1] == '*')
- colon[1] = 0; /* Allow all */
- if(*p0 == 'a')
- *p0 = 'A';
- if(*p0 == 'd')
- *p0 = 'D';
- if(*p0 != 'A' && *p0 != 'D'
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- && *p0 != '/'
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- && *p0 != '.'
-#endif
- )
- continue;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if(*p0 == '/' && colon[1] == 0) {
- /* skip /path:* */
- continue;
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ /* retain previous auth and mime config only for subdir parse */
+ if (flag != SUBDIR_PARSE) {
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ free_config_lines(&config->auth);
+#endif
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ free_config_lines(&config->mime_a);
+#endif
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ free_config_lines(&config->script_i);
+#endif
}
#endif
- if(*p0 == 'A' || *p0 == 'D') {
- if(colon[1] == 0) {
- if(*p0 == 'A' || deny_all != 0)
- continue; /* skip default A:* or double D:* */
- }
- if(deny_all != 0 && *p0 == 'A')
- continue; // if previous setted rule D:* skip all subdir A:
+ if (flag == SUBDIR_PARSE || cf == NULL) {
+ cf = alloca(strlen(path) + sizeof(httpd_conf) + 2);
+ if (cf == NULL) {
+ if (flag == FIRST_PARSE)
+ bb_error_msg_and_die(bb_msg_memory_exhausted);
+ return;
+ }
+ sprintf((char *)cf, "%s/%s", path, httpd_conf);
}
- /* storing current config line */
- cur = calloc(1, sizeof(Htaccess) + (p-p0));
- if(cur) {
- if(*(colon-1) == '/' && (colon-1) != p0)
- colon[-1] = 0; // remove last / from /path/
- cur->after_colon = strcpy(cur->before_colon, p0);
- cur->after_colon += (colon-p0);
- *cur->after_colon++ = 0;
-
- if(prev == NULL) {
- /* first line */
- config->Httpd_conf_parsed = prev = cur;
- } else {
- prev->next = cur;
- prev = cur;
- }
- n++;
- }
- }
- fclose(f);
-
- if(n > 1) {
- /* sorting conf lines */
- Htaccess ** pcur; /* array for qsort */
-
- prev = config->Httpd_conf_parsed;
- pcur = alloca((n + 1) * sizeof(Htaccess *));
- if(pcur == NULL) {
- if(flag == FIRST_PARSE)
- error_msg_and_die(memory_exhausted);
- return;
+ while ((f = fopen(cf, "r")) == NULL) {
+ if (flag == SUBDIR_PARSE || flag == FIND_FROM_HTTPD_ROOT) {
+ /* config file not found, no changes to config */
+ return;
+ }
+ if (config->configFile && flag == FIRST_PARSE) /* if -c option given */
+ bb_perror_msg_and_die("%s", cf);
+ flag = FIND_FROM_HTTPD_ROOT;
+ cf = httpd_conf;
}
- n = 0;
- for(cur = prev; cur; cur = cur->next)
- pcur[n++] = cur;
- pcur[n] = NULL;
- qsort(pcur, n, sizeof(Htaccess *), conf_sort);
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ prev = config->auth;
+#endif
+ /* This could stand some work */
+ while ((p0 = fgets(buf, sizeof(buf), f)) != NULL) {
+ c = NULL;
+ for (p = p0; *p0 != 0 && *p0 != '#'; p0++) {
+ if (!isspace(*p0)) {
+ *p++ = *p0;
+ if (*p0 == ':' && c == NULL)
+ c = p;
+ }
+ }
+ *p = 0;
+
+ /* test for empty or strange line */
+ if (c == NULL || *c == 0)
+ continue;
+ p0 = buf;
+ if (*p0 == 'd')
+ *p0 = 'D';
+ if (*c == '*') {
+ if (*p0 == 'D') {
+ /* memorize deny all */
+ config->flg_deny_all++;
+ }
+ /* skip default other "word:*" config lines */
+ continue;
+ }
- /* storing sorted config */
- config->Httpd_conf_parsed = *pcur;
- for(cur = *pcur; cur; cur = cur->next) {
-#ifdef DEBUG
- error_msg("%s: %s:%s", cf, cur->before_colon, cur->after_colon);
+ if (*p0 == 'a')
+ *p0 = 'A';
+ else if (*p0 != 'D' && *p0 != 'A'
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ && *p0 != '/'
#endif
- cur->next = *++pcur;
- }
- }
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ && *p0 != '.'
+#endif
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ && *p0 != '*'
+#endif
+ )
+ continue;
+ if (*p0 == 'A' || *p0 == 'D') {
+ /* storing current config IP line */
+ pip = calloc(1, sizeof(Htaccess_IP));
+ if (pip) {
+ if (scan_ip_mask(c, &(pip->ip), &(pip->mask))) {
+ /* syntax IP{/mask} error detected, protect all */
+ *p0 = 'D';
+ pip->mask = 0;
+ }
+ pip->allow_deny = *p0;
+ if (*p0 == 'D') {
+ /* Deny:form_IP move top */
+ pip->next = config->ip_a_d;
+ config->ip_a_d = pip;
+ } else {
+ /* add to bottom A:form_IP config line */
+ Htaccess_IP *prev_IP = config->ip_a_d;
+
+ if (prev_IP == NULL) {
+ config->ip_a_d = pip;
+ } else {
+ while (prev_IP->next)
+ prev_IP = prev_IP->next;
+ prev_IP->next = pip;
+ }
+ }
+ }
+ continue;
+ }
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ if (*p0 == '/') {
+ /* make full path from httpd root / curent_path / config_line_path */
+ cf = flag == SUBDIR_PARSE ? path : "";
+ p0 = malloc(strlen(cf) + (c - buf) + 2 + strlen(c));
+ if (p0 == NULL)
+ continue;
+ c[-1] = 0;
+ sprintf(p0, "/%s%s", cf, buf);
+
+ /* another call bb_simplify_path */
+ cf = p = p0;
+
+ do {
+ if (*p == '/') {
+ if (*cf == '/') { /* skip duplicate (or initial) slash */
+ continue;
+ } else if (*cf == '.') {
+ if (cf[1] == '/' || cf[1] == 0) { /* remove extra '.' */
+ continue;
+ } else if ((cf[1] == '.') && (cf[2] == '/' || cf[2] == 0)) {
+ ++cf;
+ if (p > p0) {
+ while (*--p != '/') /* omit previous dir */;
+ }
+ continue;
+ }
+ }
+ }
+ *++p = *cf;
+ } while (*++cf);
+
+ if ((p == p0) || (*p != '/')) { /* not a trailing slash */
+ ++p; /* so keep last character */
+ }
+ *p = 0;
+ sprintf(p0, "%s:%s", p0, c);
+ }
+#endif
+
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ /* storing current config line */
+ cur = calloc(1, sizeof(Htaccess) + strlen(p0));
+ if (cur) {
+ cf = strcpy(cur->before_colon, p0);
+ c = strchr(cf, ':');
+ *c++ = 0;
+ cur->after_colon = c;
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ if (*cf == '.') {
+ /* config .mime line move top for overwrite previous */
+ cur->next = config->mime_a;
+ config->mime_a = cur;
+ continue;
+ }
+#endif
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ if (*cf == '*' && cf[1] == '.') {
+ /* config script interpreter line move top for overwrite previous */
+ cur->next = config->script_i;
+ config->script_i = cur;
+ continue;
+ }
+#endif
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ free(p0);
+ if (prev == NULL) {
+ /* first line */
+ config->auth = prev = cur;
+ } else {
+ /* sort path, if current lenght eq or bigger then move up */
+ Htaccess *prev_hti = config->auth;
+ size_t l = strlen(cf);
+ Htaccess *hti;
+
+ for (hti = prev_hti; hti; hti = hti->next) {
+ if (l >= strlen(hti->before_colon)) {
+ /* insert before hti */
+ cur->next = hti;
+ if (prev_hti != hti) {
+ prev_hti->next = cur;
+ } else {
+ /* insert as top */
+ config->auth = cur;
+ }
+ break;
+ }
+ if (prev_hti != hti)
+ prev_hti = prev_hti->next;
+ }
+ if (!hti) { /* not inserted, add to bottom */
+ prev->next = cur;
+ prev = cur;
+ }
+ }
+#endif
+ }
+#endif
+ }
+ fclose(f);
}
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
+#if ENABLE_FEATURE_HTTPD_ENCODE_URL_STR
/****************************************************************************
*
> $Function: encodeString()
****************************************************************************/
static char *encodeString(const char *string)
{
- /* take the simple route and encode everything */
- /* could possibly scan once to get length. */
- int len = strlen(string);
- char *out = malloc(len*5 +1);
- char *p=out;
- char ch;
-
- if (!out) return "";
- while ((ch = *string++)) {
- // very simple check for what to encode
- if (isalnum(ch)) *p++ = ch;
- else p += sprintf(p, "&#%d", (unsigned char) ch);
- }
- *p=0;
- return out;
+ /* take the simple route and encode everything */
+ /* could possibly scan once to get length. */
+ int len = strlen(string);
+ char *out = malloc(len * 6 + 1);
+ char *p = out;
+ char ch;
+
+ if (!out) return "";
+ while ((ch = *string++)) {
+ // very simple check for what to encode
+ if (isalnum(ch)) *p++ = ch;
+ else p += sprintf(p, "&#%d;", (unsigned char) ch);
+ }
+ *p = 0;
+ return out;
}
#endif /* CONFIG_FEATURE_HTTPD_ENCODE_URL_STR */
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
/****************************************************************************
*
> $Function: decodeString()
*
* $Parameters:
* (char *) string . . . The first string to decode.
+ * (int) flag . . . 1 if require decode '+' as ' ' for CGI
*
* $Return: (char *) . . . . A pointer to the decoded string (same as input).
*
* $Errors: None
*
****************************************************************************/
-static char *decodeString(char *string)
+static char *decodeString(char *orig, int flag_plus_to_space)
{
- /* note that decoded string is always shorter than original */
- char *orig = string;
- char *ptr = string;
- while (*ptr)
- {
- if (*ptr == '+') { *string++ = ' '; ptr++; }
- else if (*ptr != '%') *string++ = *ptr++;
- else {
- unsigned int value;
- sscanf(ptr+1, "%2X", &value);
- *string++ = value;
- ptr += 3;
- }
- }
- *string = '\0';
- return orig;
+ /* note that decoded string is always shorter than original */
+ char *string = orig;
+ char *ptr = string;
+
+ while (*ptr) {
+ if (*ptr == '+' && flag_plus_to_space) { *string++ = ' '; ptr++; }
+ else if (*ptr != '%') *string++ = *ptr++;
+ else {
+ unsigned int value1, value2;
+
+ ptr++;
+ if (sscanf(ptr, "%1X", &value1) != 1 ||
+ sscanf(ptr+1, "%1X", &value2) != 1) {
+ if (!flag_plus_to_space)
+ return NULL;
+ *string++ = '%';
+ } else {
+ value1 = value1 * 16 + value2;
+ if (value1 == '/' || value1 == 0)
+ return orig+1;
+ *string++ = value1;
+ ptr += 2;
+ }
+ }
+ }
+ *string = '\0';
+ return orig;
}
-#endif /* CONFIG_FEATURE_HTTPD_DECODE_URL_STR */
-#ifdef CONFIG_FEATURE_HTTPD_CGI
+#if ENABLE_FEATURE_HTTPD_CGI
/****************************************************************************
*
> $Function: addEnv()
*
- * $Description: Add an enviornment variable setting to the global list.
+ * $Description: Add an environment variable setting to the global list.
* A NAME=VALUE string is allocated, filled, and added to the list of
* environment settings passed to the cgi execution script.
*
static void addEnv(const char *name_before_underline,
const char *name_after_underline, const char *value)
{
- char *s;
-
- if (config->envCount >= ENVSIZE)
- return;
- if (!value)
- value = "";
- s = malloc(strlen(name_before_underline) + strlen(name_after_underline) +
- strlen(value) + 3);
- if (s) {
- const char *underline = *name_after_underline ? "_" : "";
-
- sprintf(s,"%s%s%s=%s", name_before_underline, underline,
- name_after_underline, value);
- config->envp[config->envCount++] = s;
- config->envp[config->envCount] = 0;
- }
+ char *s = NULL;
+ const char *underline;
+
+ if (!value)
+ value = "";
+ underline = *name_after_underline ? "_" : "";
+ asprintf(&s, "%s%s%s=%s", name_before_underline, underline,
+ name_after_underline, value);
+ if (s) {
+ putenv(s);
+ }
}
+#if ENABLE_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV || ENABLE_FEATURE_HTTPD_WITHOUT_INETD
/* set environs SERVER_PORT and REMOTE_PORT */
static void addEnvPort(const char *port_name)
{
- char buf[16];
+ char buf[16];
- sprintf(buf, "%u", config->port);
- addEnv(port_name, "PORT", buf);
+ sprintf(buf, "%u", config->port);
+ addEnv(port_name, "PORT", buf);
}
+#endif
#endif /* CONFIG_FEATURE_HTTPD_CGI */
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
-/****************************************************************************
- *
- > $Function: addEnvCgi
- *
- * $Description: Create environment variables given a URL encoded arg list.
- * For each variable setting the URL encoded arg list, create a corresponding
- * environment variable. URL encoded arguments have the form
- * name1=value1&name2=value2&name3=&ignores
- * from this example, name3 set empty value, tail without '=' skiping
- *
- * $Parameters:
- * (char *) pargs . . . . A pointer to the URL encoded arguments.
- *
- * $Return: None
- *
- * $Errors: None
- *
- ****************************************************************************/
-static void addEnvCgi(const char *pargs)
-{
- char *args;
- char *memargs;
- if (pargs==0) return;
-
- /* args are a list of name=value&name2=value2 sequences */
- memargs = args = strdup(pargs);
- while (args && *args) {
- const char *name = args;
- char *value = strchr(args, '=');
-
- if (!value) /* &XXX without '=' */
- break;
- *value++ = 0;
- args = strchr(value, '&');
- if (args)
- *args++ = 0;
- addEnv("CGI", name, decodeString(value));
- }
- free(memargs);
-}
-#endif /* CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV */
-
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
/****************************************************************************
*
> $Function: decodeBase64()
****************************************************************************/
static void decodeBase64(char *Data)
{
- int i = 0;
- static const char base64ToBin[] =
- "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
- const unsigned char *in = Data;
- // The decoded size will be at most 3/4 the size of the encoded
- unsigned long ch = 0;
-
- while (*in) {
- unsigned char conv = 0;
-
- while (*in) {
- const char *p64;
-
- p64 = strchr(base64ToBin, *in++);
- if(p64 == NULL)
- continue;
- conv = (p64 - base64ToBin);
- break;
- }
- ch = (ch << 6) | conv;
- i++;
- if (i== 4) {
- *Data++ = (char) (ch >> 16);
- *Data++ = (char) (ch >> 8);
- *Data++ = (char) ch;
- i = 0;
- }
- }
- *Data = 0;
+
+ const unsigned char *in = (const unsigned char *)Data;
+ // The decoded size will be at most 3/4 the size of the encoded
+ unsigned long ch = 0;
+ int i = 0;
+
+ while (*in) {
+ int t = *in++;
+
+ if (t >= '0' && t <= '9')
+ t = t - '0' + 52;
+ else if (t >= 'A' && t <= 'Z')
+ t = t - 'A';
+ else if (t >= 'a' && t <= 'z')
+ t = t - 'a' + 26;
+ else if (t == '+')
+ t = 62;
+ else if (t == '/')
+ t = 63;
+ else if (t == '=')
+ t = 0;
+ else
+ continue;
+
+ ch = (ch << 6) | t;
+ i++;
+ if (i == 4) {
+ *Data++ = (char) (ch >> 16);
+ *Data++ = (char) (ch >> 8);
+ *Data++ = (char) ch;
+ i = 0;
+ }
+ }
+ *Data = 0;
}
#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
/****************************************************************************
*
> $Function: openServer()
****************************************************************************/
static int openServer(void)
{
- struct sockaddr_in lsocket;
- int fd;
-
- /* create the socket right now */
- /* inet_addr() returns a value that is already in network order */
- memset(&lsocket, 0, sizeof(lsocket));
- lsocket.sin_family = AF_INET;
- lsocket.sin_addr.s_addr = INADDR_ANY;
- lsocket.sin_port = htons(config->port) ;
- fd = socket(AF_INET, SOCK_STREAM, 0);
- if (fd >= 0) {
- /* tell the OS it's OK to reuse a previous address even though */
- /* it may still be in a close down state. Allows bind to succeed. */
- int on = 1;
+ struct sockaddr_in lsocket;
+ int fd;
+ int on = 1;
+
+ /* create the socket right now */
+ /* inet_addr() returns a value that is already in network order */
+ memset(&lsocket, 0, sizeof(lsocket));
+ lsocket.sin_family = AF_INET;
+ lsocket.sin_addr.s_addr = INADDR_ANY;
+ lsocket.sin_port = htons(config->port);
+ fd = xsocket(AF_INET, SOCK_STREAM, 0);
+ /* tell the OS it's OK to reuse a previous address even though */
+ /* it may still be in a close down state. Allows bind to succeed. */
#ifdef SO_REUSEPORT
- setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *)&on, sizeof(on)) ;
+ setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *)&on, sizeof(on));
#else
- setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on)) ;
-#endif
- if (bind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket)) == 0) {
- listen(fd, 9);
- signal(SIGCHLD, SIG_IGN); /* prevent zombie (defunct) processes */
- } else {
- perror_msg_and_die("bind");
- }
- } else {
- perror_msg_and_die("create socket");
- }
- return fd;
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on));
+#endif
+ xbind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket));
+ xlisten(fd, 9);
+ signal(SIGCHLD, SIG_IGN); /* prevent zombie (defunct) processes */
+ return fd;
}
-#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
/****************************************************************************
*
****************************************************************************/
static int sendHeaders(HttpResponseNum responseNum)
{
- char *buf = config->buf;
- const char *responseString = "";
- const char *infoString = 0;
- unsigned int i;
- time_t timer = time(0);
- char timeStr[80];
- int len;
-
- for (i = 0;
- i < (sizeof(httpResponseNames)/sizeof(httpResponseNames[0])); i++) {
+ char *buf = config->buf;
+ const char *responseString = "";
+ const char *infoString = 0;
+ const char *mime_type;
+ unsigned int i;
+ time_t timer = time(0);
+ char timeStr[80];
+ int len;
+
+ for (i = 0;
+ i < (sizeof(httpResponseNames)/sizeof(httpResponseNames[0])); i++) {
if (httpResponseNames[i].type == responseNum) {
responseString = httpResponseNames[i].name;
infoString = httpResponseNames[i].info;
break;
}
- }
- if (responseNum != HTTP_OK) {
- config->found_mime_type = "text/html"; // error message is HTML
- }
-
- /* emit the current date */
- strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&timer));
- len = sprintf(buf,
- "HTTP/1.0 %d %s\nContent-type: %s\r\n"
- "Date: %s\r\nConnection: close\r\n",
- responseNum, responseString, config->found_mime_type, timeStr);
-
- if (responseNum == HTTP_UNAUTHORIZED) {
- len += sprintf(buf+len, "WWW-Authenticate: Basic realm=\"%s\"\r\n",
- config->realm);
- }
- if (config->ContentLength != -1) { /* file */
- strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
- len += sprintf(buf+len, "Last-Modified: %s\r\n%s %ld\r\n",
- timeStr, Content_length, config->ContentLength);
- }
- strcat(buf, "\r\n");
- len += 2;
- if (infoString) {
- len += sprintf(buf+len,
- "<HEAD><TITLE>%d %s</TITLE></HEAD>\n"
- "<BODY><H1>%d %s</H1>\n%s\n</BODY>\n",
- responseNum, responseString,
- responseNum, responseString, infoString);
- }
-#ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "Headers: '%s'", buf);
-#endif
- return full_write(a_c_w, buf, len);
+ }
+ /* error message is HTML */
+ mime_type = responseNum == HTTP_OK ?
+ config->httpd_found.found_mime_type : "text/html";
+
+ /* emit the current date */
+ strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&timer));
+ len = sprintf(buf,
+ "HTTP/1.0 %d %s\r\nContent-type: %s\r\n"
+ "Date: %s\r\nConnection: close\r\n",
+ responseNum, responseString, mime_type, timeStr);
+
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ if (responseNum == HTTP_UNAUTHORIZED) {
+ len += sprintf(buf+len, "WWW-Authenticate: Basic realm=\"%s\"\r\n",
+ config->realm);
+ }
+#endif
+ if (responseNum == HTTP_MOVED_TEMPORARILY) {
+ len += sprintf(buf+len, "Location: %s/%s%s\r\n",
+ config->httpd_found.found_moved_temporarily,
+ (config->query ? "?" : ""),
+ (config->query ? config->query : ""));
+ }
+
+ if (config->ContentLength != -1) { /* file */
+ strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
+ len += sprintf(buf+len, "Last-Modified: %s\r\n%s " cont_l_fmt "\r\n",
+ timeStr, Content_length, cont_l_type config->ContentLength);
+ }
+ strcat(buf, "\r\n");
+ len += 2;
+ if (infoString) {
+ len += sprintf(buf+len,
+ "<HEAD><TITLE>%d %s</TITLE></HEAD>\n"
+ "<BODY><H1>%d %s</H1>\n%s\n</BODY>\n",
+ responseNum, responseString,
+ responseNum, responseString, infoString);
+ }
+#if DEBUG
+ fprintf(stderr, "Headers: '%s'", buf);
+#endif
+ return full_write(a_c_w, buf, len);
}
/****************************************************************************
*
* Characters are read one at a time until an eol sequence is found.
*
- * $Parameters:
- * (char *) buf . . Where to place the read result.
- *
* $Return: (int) . . . . number of characters read. -1 if error.
*
****************************************************************************/
-static int getLine(char *buf)
+static int getLine(void)
{
- int count = 0;
-
- while (read(a_c_r, buf + count, 1) == 1) {
- if (buf[count] == '\r') continue;
- if (buf[count] == '\n') {
- buf[count] = 0;
- return count;
- }
- if(count < (MAX_MEMORY_BUFF-1)) /* check owerflow */
- count++;
- }
- if (count) return count;
- else return -1;
+ int count = 0;
+ char *buf = config->buf;
+
+ while (read(a_c_r, buf + count, 1) == 1) {
+ if (buf[count] == '\r') continue;
+ if (buf[count] == '\n') {
+ buf[count] = 0;
+ return count;
+ }
+ if (count < (MAX_MEMORY_BUFF-1)) /* check owerflow */
+ count++;
+ }
+ if (count) return count;
+ else return -1;
}
-#ifdef CONFIG_FEATURE_HTTPD_CGI
+#if ENABLE_FEATURE_HTTPD_CGI
/****************************************************************************
*
> $Function: sendCgi()
* data in addition to setting the QUERY_STRING variable (for GETs or POSTs).
*
* $Parameters:
- * (const char *) url . . . The requested URL (with leading /).
- * (const char *urlArgs). . Any URL arguments.
- * (const char *body) . . . POST body contents.
- * (int bodyLen) . . . . . Length of the post body.
- * (const char *cookie) . . For set HTTP_COOKIE.
+ * (const char *) url . . . . . . The requested URL (with leading /).
+ * (int bodyLen) . . . . . . . . Length of the post body.
+ * (const char *cookie) . . . . . For set HTTP_COOKIE.
+ * (const char *content_type) . . For set CONTENT_TYPE.
*
* $Return: (char *) . . . . A pointer to the decoded string (same as input).
*
****************************************************************************/
static int sendCgi(const char *url,
- const char *request, const char *urlArgs,
- const char *body, int bodyLen, const char *cookie)
+ const char *request, int bodyLen, const char *cookie,
+ const char *content_type)
{
- int fromCgi[2]; /* pipe for reading data from CGI */
- int toCgi[2]; /* pipe for sending data to CGI */
-
- static char * argp[] = { 0, 0 };
- int pid = 0;
- int inFd;
- int outFd;
- int firstLine = 1;
-
- do {
- if (pipe(fromCgi) != 0) {
- break;
- }
- if (pipe(toCgi) != 0) {
- break;
- }
-
- pid = fork();
- if (pid < 0) {
- pid = 0;
- break;
- }
-
- if (!pid) {
- /* child process */
- char *script;
- char *purl = strdup( url );
- char realpath_buff[MAXPATHLEN];
-
- if(purl == NULL)
- _exit(242);
-
- inFd = toCgi[0];
- outFd = fromCgi[1];
-
- dup2(inFd, 0); // replace stdin with the pipe
- dup2(outFd, 1); // replace stdout with the pipe
-
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- if (!config->debugHttpd)
-#endif
- dup2(outFd, 2); // replace stderr with the pipe
-
- close(toCgi[0]);
- close(toCgi[1]);
- close(fromCgi[0]);
- close(fromCgi[1]);
-
- /*
- * Find PATH_INFO.
- */
- script = purl;
- while((script = strchr( script + 1, '/' )) != NULL) {
- /* have script.cgi/PATH_INFO or dirs/script.cgi[/PATH_INFO] */
- struct stat sb;
+ int fromCgi[2]; /* pipe for reading data from CGI */
+ int toCgi[2]; /* pipe for sending data to CGI */
- *script = '\0';
- if(is_directory(purl + 1, 1, &sb) == 0) {
- /* not directory, found script.cgi/PATH_INFO */
- *script = '/';
- break;
- }
- *script = '/'; /* is directory, find next '/' */
- }
- addEnv("PATH", "INFO", script); /* set /PATH_INFO or NULL */
- addEnv("PATH", "", getenv("PATH"));
- addEnv("REQUEST", "METHOD", request);
- if(urlArgs) {
- char *uri = alloca(strlen(purl) + 2 + strlen(urlArgs));
- if(uri)
- sprintf(uri, "%s?%s", purl, urlArgs);
- addEnv("REQUEST", "URI", uri);
- } else {
- addEnv("REQUEST", "URI", purl);
- }
- if(script != NULL)
- *script = '\0'; /* reduce /PATH_INFO */
- /* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
- addEnv("SCRIPT_NAME", "", purl);
- addEnv("QUERY_STRING", "", urlArgs);
- addEnv("SERVER", "SOFTWARE", httpdVersion);
- addEnv("SERVER", "PROTOCOL", "HTTP/1.0");
- addEnv("GATEWAY_INTERFACE", "", "CGI/1.1");
-#ifdef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
- addEnv("REMOTE", "ADDR", config->rmt_ip);
- addEnvPort("REMOTE");
-#else
- addEnv("REMOTE_ADDR", "", config->rmt_ip);
-#endif
- if(bodyLen) {
- char sbl[32];
-
- sprintf(sbl, "%d", bodyLen);
- addEnv("CONTENT_LENGTH", "", sbl);
- }
- if(cookie)
- addEnv("HTTP_COOKIE", "", cookie);
-
-#ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
- if (request != request_GET) {
- addEnvCgi(body);
- } else {
- addEnvCgi(urlArgs);
- }
-#endif
-
- /* set execve argp[0] without path */
- argp[0] = strrchr( purl, '/' ) + 1;
- /* but script argp[0] must have absolute path and chdiring to this */
- if(realpath(purl + 1, realpath_buff) != NULL) {
- script = strrchr(realpath_buff, '/');
- if(script) {
- *script = '\0';
- if(chdir(realpath_buff) == 0) {
- *script = '/';
- // now run the program. If it fails, use _exit() so no destructors
- // get called and make a mess.
- execve(realpath_buff, argp, config->envp);
+ static char * argp[] = { 0, 0 };
+ int pid = 0;
+ int inFd;
+ int outFd;
+ int firstLine = 1;
+
+ do {
+ if (pipe(fromCgi) != 0) {
+ break;
}
- }
- }
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- config->accepted_socket = 1; /* send to stdout */
-#endif
- sendHeaders(HTTP_NOT_FOUND);
- _exit(242);
- } /* end child */
-
- } while (0);
-
- if (pid) {
- /* parent process */
- int status;
-
- inFd = fromCgi[0];
- outFd = toCgi[1];
- close(fromCgi[1]);
- close(toCgi[0]);
- if (body) full_write(outFd, body, bodyLen);
- close(outFd);
-
- while (1) {
- struct timeval timeout;
- fd_set readSet;
- char buf[160];
- int nfound;
- int count;
-
- FD_ZERO(&readSet);
- FD_SET(inFd, &readSet);
-
- /* Now wait on the set of sockets! */
- timeout.tv_sec = 0;
- timeout.tv_usec = 10000;
- nfound = select(inFd + 1, &readSet, 0, 0, &timeout);
-
- if (nfound <= 0) {
- if (waitpid(pid, &status, WNOHANG) > 0) {
- close(inFd);
-#ifdef DEBUG
- if (config->debugHttpd) {
- if (WIFEXITED(status))
- error_msg("piped has exited with status=%d", WEXITSTATUS(status));
- if (WIFSIGNALED(status))
- error_msg("piped has exited with signal=%d", WTERMSIG(status));
- }
-#endif
- pid = -1;
- break;
- }
- } else {
- int s = a_c_w;
-
- // There is something to read
- count = full_read(inFd, buf, sizeof(buf)-1);
- // If a read returns 0 at this point then some type of error has
- // occurred. Bail now.
- if (count == 0) break;
- if (count > 0) {
- if (firstLine) {
- /* check to see if the user script added headers */
- if (strncmp(buf, "HTTP/1.0 200 OK\n", 4) != 0) {
- full_write(s, "HTTP/1.0 200 OK\n", 16);
- }
- if (strstr(buf, "ontent-") == 0) {
- full_write(s, "Content-type: text/plain\n\n", 26);
- }
- firstLine=0;
- }
- full_write(s, buf, count);
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr, "cgi read %d bytes\n", count);
+ if (pipe(toCgi) != 0) {
+ break;
+ }
+
+ pid = fork();
+ if (pid < 0) {
+ pid = 0;
+ break;
+ }
+
+ if (!pid) {
+ /* child process */
+ char *script;
+ char *purl = strdup(url);
+ char realpath_buff[MAXPATHLEN];
+
+ if (purl == NULL)
+ _exit(242);
+
+ inFd = toCgi[0];
+ outFd = fromCgi[1];
+
+ dup2(inFd, 0); // replace stdin with the pipe
+ dup2(outFd, 1); // replace stdout with the pipe
+ if (!DEBUG)
+ dup2(outFd, 2); // replace stderr with the pipe
+
+ close(toCgi[0]);
+ close(toCgi[1]);
+ close(fromCgi[0]);
+ close(fromCgi[1]);
+
+ /*
+ * Find PATH_INFO.
+ */
+ script = purl;
+ while ((script = strchr(script + 1, '/')) != NULL) {
+ /* have script.cgi/PATH_INFO or dirs/script.cgi[/PATH_INFO] */
+ struct stat sb;
+
+ *script = '\0';
+ if (is_directory(purl + 1, 1, &sb) == 0) {
+ /* not directory, found script.cgi/PATH_INFO */
+ *script = '/';
+ break;
+ }
+ *script = '/'; /* is directory, find next '/' */
+ }
+ addEnv("PATH", "INFO", script); /* set /PATH_INFO or NULL */
+ addEnv("PATH", "", getenv("PATH"));
+ addEnv("REQUEST", "METHOD", request);
+ if (config->query) {
+ char *uri = alloca(strlen(purl) + 2 + strlen(config->query));
+ if (uri)
+ sprintf(uri, "%s?%s", purl, config->query);
+ addEnv("REQUEST", "URI", uri);
+ } else {
+ addEnv("REQUEST", "URI", purl);
+ }
+ if (script != NULL)
+ *script = '\0'; /* reduce /PATH_INFO */
+ /* SCRIPT_FILENAME required by PHP in CGI mode */
+ if (realpath(purl + 1, realpath_buff))
+ addEnv("SCRIPT", "FILENAME", realpath_buff);
+ else
+ *realpath_buff = 0;
+ /* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
+ addEnv("SCRIPT_NAME", "", purl);
+ addEnv("QUERY_STRING", "", config->query);
+ addEnv("SERVER", "SOFTWARE", httpdVersion);
+ addEnv("SERVER", "PROTOCOL", "HTTP/1.0");
+ addEnv("GATEWAY_INTERFACE", "", "CGI/1.1");
+ addEnv("REMOTE", "ADDR", config->rmt_ip_str);
+#if ENABLE_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
+ addEnvPort("REMOTE");
+#endif
+ if (bodyLen) {
+ char sbl[32];
+
+ sprintf(sbl, "%d", bodyLen);
+ addEnv("CONTENT", "LENGTH", sbl);
+ }
+ if (cookie)
+ addEnv("HTTP", "COOKIE", cookie);
+ if (content_type)
+ addEnv("CONTENT", "TYPE", content_type);
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ if (config->remoteuser) {
+ addEnv("REMOTE", "USER", config->remoteuser);
+ addEnv("AUTH_TYPE", "", "Basic");
+ }
+#endif
+ if (config->referer)
+ addEnv("HTTP", "REFERER", config->referer);
+
+ /* set execve argp[0] without path */
+ argp[0] = strrchr(purl, '/') + 1;
+ /* but script argp[0] must have absolute path and chdiring to this */
+ if (*realpath_buff) {
+ script = strrchr(realpath_buff, '/');
+ if (script) {
+ *script = '\0';
+ if (chdir(realpath_buff) == 0) {
+ // now run the program. If it fails,
+ // use _exit() so no destructors
+ // get called and make a mess.
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ char *interpr = NULL;
+ char *suffix = strrchr(purl, '.');
+
+ if (suffix) {
+ Htaccess * cur;
+ for (cur = config->script_i; cur; cur = cur->next)
+ if (strcmp(cur->before_colon + 1, suffix) == 0) {
+ interpr = cur->after_colon;
+ break;
+ }
+ }
+#endif
+ *script = '/';
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ if (interpr)
+ execv(interpr, argp);
+ else
+#endif
+ execv(realpath_buff, argp);
+ }
+ }
+ }
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ config->accepted_socket = 1; /* send to stdout */
+#endif
+ sendHeaders(HTTP_NOT_FOUND);
+ _exit(242);
+ } /* end child */
+
+ } while (0);
+
+ if (pid) {
+ /* parent process */
+ int status;
+ size_t post_readed_size = 0, post_readed_idx = 0;
+
+ inFd = fromCgi[0];
+ outFd = toCgi[1];
+ close(fromCgi[1]);
+ close(toCgi[0]);
+ signal(SIGPIPE, SIG_IGN);
+
+ while (1) {
+ fd_set readSet;
+ fd_set writeSet;
+ char wbuf[128];
+ int nfound;
+ int count;
+
+ FD_ZERO(&readSet);
+ FD_ZERO(&writeSet);
+ FD_SET(inFd, &readSet);
+ if (bodyLen > 0 || post_readed_size > 0) {
+ FD_SET(outFd, &writeSet);
+ nfound = outFd > inFd ? outFd : inFd;
+ if (post_readed_size == 0) {
+ FD_SET(a_c_r, &readSet);
+ if (nfound < a_c_r)
+ nfound = a_c_r;
+ }
+ /* Now wait on the set of sockets! */
+ nfound = select(nfound + 1, &readSet, &writeSet, 0, NULL);
+ } else {
+ if (!bodyLen) {
+ close(outFd);
+ bodyLen = -1;
+ }
+ nfound = select(inFd + 1, &readSet, 0, 0, NULL);
+ }
+
+ if (nfound <= 0) {
+ if (waitpid(pid, &status, WNOHANG) > 0) {
+ close(inFd);
+#if DEBUG
+ if (WIFEXITED(status))
+ bb_error_msg("piped has exited with status=%d", WEXITSTATUS(status));
+ if (WIFSIGNALED(status))
+ bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
+#endif
+ break;
+ }
+ } else if (post_readed_size > 0 && FD_ISSET(outFd, &writeSet)) {
+ count = full_write(outFd, wbuf + post_readed_idx, post_readed_size);
+ if (count > 0) {
+ post_readed_size -= count;
+ post_readed_idx += count;
+ if (post_readed_size == 0)
+ post_readed_idx = 0;
+ } else {
+ post_readed_size = post_readed_idx = bodyLen = 0; /* broken pipe to CGI */
+ }
+ } else if (bodyLen > 0 && post_readed_size == 0 && FD_ISSET(a_c_r, &readSet)) {
+ count = bodyLen > (int)sizeof(wbuf) ? (int)sizeof(wbuf) : bodyLen;
+ count = safe_read(a_c_r, wbuf, count);
+ if (count > 0) {
+ post_readed_size += count;
+ bodyLen -= count;
+ } else {
+ bodyLen = 0; /* closed */
+ }
+ }
+ if (FD_ISSET(inFd, &readSet)) {
+ int s = a_c_w;
+ char *rbuf = config->buf;
+
+#ifndef PIPE_BUF
+# define PIPESIZE 4096 /* amount of buffering in a pipe */
+#else
+# define PIPESIZE PIPE_BUF
#endif
+#if PIPESIZE >= MAX_MEMORY_BUFF
+# error "PIPESIZE >= MAX_MEMORY_BUFF"
+#endif
+
+ // There is something to read
+ count = safe_read(inFd, rbuf, PIPESIZE);
+ if (count == 0)
+ break; /* closed */
+ if (count > 0) {
+ if (firstLine) {
+ rbuf[count] = 0;
+ /* check to see if the user script added headers */
+ if (strncmp(rbuf, "HTTP/1.0 200 OK\r\n", 4) != 0) {
+ full_write(s, "HTTP/1.0 200 OK\r\n", 17);
+ }
+ if (strstr(rbuf, "ontent-") == 0) {
+ full_write(s, "Content-type: text/plain\r\n\r\n", 28);
+ }
+ firstLine = 0;
+ }
+ if (full_write(s, rbuf, count) != count)
+ break;
+
+#if DEBUG
+ fprintf(stderr, "cgi read %d bytes\n", count);
+#endif
+ }
+ }
+ }
}
- }
- }
- }
- return 0;
+ return 0;
}
#endif /* CONFIG_FEATURE_HTTPD_CGI */
*
* $Parameter:
* (const char *) url . . The URL requested.
- * (char *) buf . . . . . The stack buffer.
*
* $Return: (int) . . . . . . Always 0.
*
****************************************************************************/
-static int sendFile(const char *url, char *buf)
+static int sendFile(const char *url)
{
- char * suffix;
- int f;
- const char * const * table;
- const char * try_suffix;
+ char * suffix;
+ int f;
+ const char * const * table;
+ const char * try_suffix;
- suffix = strrchr(url, '.');
+ suffix = strrchr(url, '.');
- for (table = suffixTable; *table; table += 2)
- if(suffix != NULL && (try_suffix = strstr(*table, suffix)) != 0) {
- try_suffix += strlen(suffix);
- if(*try_suffix == 0 || *try_suffix == '.')
- break;
- }
- /* also, if not found, set default as "application/octet-stream"; */
- config->found_mime_type = *(table+1);
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- if (suffix) {
- Htaccess * cur;
-
- for (cur = config->Httpd_conf_parsed; cur; cur = cur->next) {
- if(strcmp(cur->before_colon, suffix) == 0) {
- config->found_mime_type = cur->after_colon;
- break;
+ for (table = suffixTable; *table; table += 2)
+ if (suffix != NULL && (try_suffix = strstr(*table, suffix)) != 0) {
+ try_suffix += strlen(suffix);
+ if (*try_suffix == 0 || *try_suffix == '.')
+ break;
+ }
+ /* also, if not found, set default as "application/octet-stream"; */
+ config->httpd_found.found_mime_type = *(table+1);
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ if (suffix) {
+ Htaccess * cur;
+
+ for (cur = config->mime_a; cur; cur = cur->next) {
+ if (strcmp(cur->before_colon, suffix) == 0) {
+ config->httpd_found.found_mime_type = cur->after_colon;
+ break;
+ }
+ }
}
- }
- }
#endif /* CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES */
-#ifdef DEBUG
- if (config->debugHttpd)
+#if DEBUG
fprintf(stderr, "Sending file '%s' Content-type: %s\n",
- url, config->found_mime_type);
+ url, config->httpd_found.found_mime_type);
#endif
- f = open(url, O_RDONLY);
- if (f >= 0) {
- int count;
+ f = open(url, O_RDONLY);
+ if (f >= 0) {
+ int count;
+ char *buf = config->buf;
- sendHeaders(HTTP_OK);
- while ((count = full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
- full_write(a_c_w, buf, count);
+ sendHeaders(HTTP_OK);
+ while ((count = full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
+ if (full_write(a_c_w, buf, count) != count)
+ break;
+ }
+ close(f);
+ } else {
+#if DEBUG
+ bb_perror_msg("Unable to open '%s'", url);
+#endif
+ sendHeaders(HTTP_NOT_FOUND);
}
- close(f);
- } else {
-#ifdef DEBUG
- if (config->debugHttpd)
- perror_msg("Unable to open '%s'", url);
+
+ return 0;
+}
+
+static int checkPermIP(void)
+{
+ Htaccess_IP * cur;
+
+ /* This could stand some work */
+ for (cur = config->ip_a_d; cur; cur = cur->next) {
+#if DEBUG
+ fprintf(stderr, "checkPermIP: '%s' ? ", config->rmt_ip_str);
+ fprintf(stderr, "'%u.%u.%u.%u/%u.%u.%u.%u'\n",
+ (unsigned char)(cur->ip >> 24),
+ (unsigned char)(cur->ip >> 16),
+ (unsigned char)(cur->ip >> 8),
+ cur->ip & 0xff,
+ (unsigned char)(cur->mask >> 24),
+ (unsigned char)(cur->mask >> 16),
+ (unsigned char)(cur->mask >> 8),
+ cur->mask & 0xff);
#endif
- sendHeaders(HTTP_NOT_FOUND);
- }
+ if ((config->rmt_ip & cur->mask) == cur->ip)
+ return cur->allow_deny == 'A'; /* Allow/Deny */
+ }
- return 0;
+ /* if unconfigured, return 1 - access from all */
+ return !config->flg_deny_all;
}
/****************************************************************************
*
> $Function: checkPerm()
*
- * $Description: Check the permission file for access.
+ * $Description: Check the permission file for access password protected.
*
* If config file isn't present, everything is allowed.
* Entries are of the form you can see example from header source
*
* $Parameters:
- * (const char *) path . . . . The file path or NULL for ip addresses.
+ * (const char *) path . . . . The file path.
* (const char *) request . . . User information to validate.
*
* $Return: (int) . . . . . . . . . 1 if request OK, 0 otherwise.
*
****************************************************************************/
-
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
static int checkPerm(const char *path, const char *request)
{
- Htaccess * cur;
- const char *p;
+ Htaccess * cur;
+ const char *p;
+ const char *p0;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- int ipaddr = path == NULL;
- const char *prev = NULL;
-#else
-# define ipaddr 1
-#endif
+ const char *prev = NULL;
- /* This could stand some work */
- for (cur = config->Httpd_conf_parsed; cur; cur = cur->next) {
- const char *p0 = cur->before_colon;
-
- if(*p0 == 'A' || *p0 == 'D') {
- if(!ipaddr)
- continue;
- } else {
- if(ipaddr)
- continue;
-#ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
- if(*p0 == '.')
- continue;
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if(prev != NULL && strcmp(prev, p0) != 0)
+ /* This could stand some work */
+ for (cur = config->auth; cur; cur = cur->next) {
+ p0 = cur->before_colon;
+ if (prev != NULL && strcmp(prev, p0) != 0)
continue; /* find next identical */
+ p = cur->after_colon;
+#if DEBUG
+ fprintf(stderr, "checkPerm: '%s' ? '%s'\n", p0, request);
#endif
- }
-
- p = cur->after_colon;
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr,"checkPerm: '%s' ? '%s'\n",
- (ipaddr ? p : p0), request);
+ {
+ size_t l = strlen(p0);
+
+ if (strncmp(p0, path, l) == 0 &&
+ (l == 1 || path[l] == '/' || path[l] == 0)) {
+ char *u;
+ /* path match found. Check request */
+ /* for check next /path:user:password */
+ prev = p0;
+ u = strchr(request, ':');
+ if (u == NULL) {
+ /* bad request, ':' required */
+ break;
+ }
+
+#if ENABLE_FEATURE_HTTPD_AUTH_MD5
+ {
+ char *cipher;
+ char *pp;
+
+ if (strncmp(p, request, u-request) != 0) {
+ /* user uncompared */
+ continue;
+ }
+ pp = strchr(p, ':');
+ if (pp && pp[1] == '$' && pp[2] == '1' &&
+ pp[3] == '$' && pp[4]) {
+ pp++;
+ cipher = pw_encrypt(u+1, pp);
+ if (strcmp(cipher, pp) == 0)
+ goto set_remoteuser_var; /* Ok */
+ /* unauthorized */
+ continue;
+ }
+ }
#endif
- if(ipaddr) {
- if(strncmp(p, request, strlen(p)) != 0)
- continue;
- return *p0 == 'A'; /* Allow/Deny */
-
- }
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- else {
- int l = strlen(p0);
-
- if(strncmp(p0, path, l) == 0 &&
- (l == 1 || path[l] == '/' || path[l] == 0)) {
- /* path match found. Check request */
- if (strcmp(p, request) == 0)
- return 1; /* Ok */
- /* unauthorized, but check next /path:user:password */
- prev = p0;
- }
- }
+ if (strcmp(p, request) == 0) {
+#if ENABLE_FEATURE_HTTPD_AUTH_MD5
+set_remoteuser_var:
#endif
- } /* for */
+ config->remoteuser = strdup(request);
+ if (config->remoteuser)
+ config->remoteuser[(u - request)] = 0;
+ return 1; /* Ok */
+ }
+ /* unauthorized */
+ }
+ }
+ } /* for */
-#ifndef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- /* if uncofigured, return 1 - access from all */
- return 1;
-#else
- return prev == NULL;
-#endif
+ return prev == NULL;
}
+#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
+
+/****************************************************************************
+ *
+ > $Function: handle_sigalrm()
+ *
+ * $Description: Handle timeouts
+ *
+ ****************************************************************************/
+
+static void handle_sigalrm(int sig)
+{
+ sendHeaders(HTTP_REQUEST_TIMEOUT);
+ config->alarm_signaled = sig;
+}
/****************************************************************************
*
****************************************************************************/
static void handleIncoming(void)
{
- char *buf = config->buf;
- char *url;
- char *purl;
- int blank = -1;
- char *urlArgs;
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- const char *prequest = request_GET;
- char *body = 0;
- long length=0;
- char *cookie = 0;
+ char *buf = config->buf;
+ char *url;
+ char *purl;
+ int blank = -1;
+ char *test;
+ struct stat sb;
+ int ip_allowed;
+#if ENABLE_FEATURE_HTTPD_CGI
+ const char *prequest = request_GET;
+ long length=0;
+ char *cookie = 0;
+ char *content_type = 0;
#endif
- char *test;
- struct stat sb;
+ fd_set s_fd;
+ struct timeval tv;
+ int retval;
+ struct sigaction sa;
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- int credentials = -1; /* if not requred this is Ok */
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ int credentials = -1; /* if not requred this is Ok */
#endif
- do {
- int count;
+ sa.sa_handler = handle_sigalrm;
+ sigemptyset(&sa.sa_mask);
+ sa.sa_flags = 0; /* no SA_RESTART */
+ sigaction(SIGALRM, &sa, NULL);
+
+ do {
+ int count;
- if (getLine(buf) <= 0)
- break; /* closed */
+ (void) alarm(TIMEOUT);
+ if (getLine() <= 0)
+ break; /* closed */
- purl = strpbrk(buf, " \t");
- if(purl == NULL) {
+ purl = strpbrk(buf, " \t");
+ if (purl == NULL) {
BAD_REQUEST:
- sendHeaders(HTTP_BAD_REQUEST);
- break;
- }
- *purl = 0;
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- if(strcasecmp(buf, prequest) != 0) {
- prequest = "POST";
- if(strcasecmp(buf, prequest) != 0) {
- sendHeaders(HTTP_NOT_IMPLEMENTED);
- break;
- }
- }
+ sendHeaders(HTTP_BAD_REQUEST);
+ break;
+ }
+ *purl = 0;
+#if ENABLE_FEATURE_HTTPD_CGI
+ if (strcasecmp(buf, prequest) != 0) {
+ prequest = "POST";
+ if (strcasecmp(buf, prequest) != 0) {
+ sendHeaders(HTTP_NOT_IMPLEMENTED);
+ break;
+ }
+ }
#else
- if(strcasecmp(buf, request_GET) != 0) {
- sendHeaders(HTTP_NOT_IMPLEMENTED);
- break;
- }
-#endif
- *purl = ' ';
- count = sscanf(purl, " %[^ ] HTTP/%d.%*d", buf, &blank);
-
- if (count < 1 || buf[0] != '/') {
- /* Garbled request/URL */
- goto BAD_REQUEST;
- }
- url = alloca(strlen(buf) + 12); /* + sizeof("/index.html\0") */
- if(url == NULL) {
- sendHeaders(HTTP_INTERNAL_SERVER_ERROR);
- break;
- }
- strcpy(url, buf);
- /* extract url args if present */
- urlArgs = strchr(url, '?');
- if (urlArgs) {
- *urlArgs++ = 0; /* next code can set '/' to this pointer,
- but CGI script can`t be a directory */
- }
-
- /* algorithm stolen from libbb simplify_path(),
- but don`t strdup and reducing trailing slash */
- purl = test = url;
-
- do {
- if (*purl == '/') {
- if (*test == '/') { /* skip duplicate (or initial) slash */
- continue;
- } else if (*test == '.') {
- if (test[1] == '/' || test[1] == 0) { /* skip extra '.' */
- continue;
- } else if ((test[1] == '.') && (test[2] == '/' || test[2] == 0)) {
- ++test;
- if (purl == url) {
- /* protect out root */
+ if (strcasecmp(buf, request_GET) != 0) {
+ sendHeaders(HTTP_NOT_IMPLEMENTED);
+ break;
+ }
+#endif
+ *purl = ' ';
+ count = sscanf(purl, " %[^ ] HTTP/%d.%*d", buf, &blank);
+
+ if (count < 1 || buf[0] != '/') {
+ /* Garbled request/URL */
goto BAD_REQUEST;
- }
- while (*--purl != '/'); /* omit previous dir */
- continue;
}
- }
- }
- *++purl = *test;
- } while (*++test);
-
- *++purl = 0; /* so keep last character */
- test = purl; /* end ptr */
-
- /* If URL is directory, adding '/' */
- if(test[-1] != '/') {
- if ( is_directory(url + 1, 1, &sb) ) {
- *test++ = '/';
- *test = 0;
- purl = test; /* end ptr */
- }
- }
-#ifdef DEBUG
- if (config->debugHttpd)
- fprintf(stderr, "url='%s', args=%s\n", url, urlArgs);
-#endif
-
- test = url;
- while((test = strchr( test + 1, '/' )) != NULL) {
- /* have path1/path2 */
- *test = '\0';
- if( is_directory(url + 1, 1, &sb) ) {
- /* may be having subdir config */
- parse_conf(url + 1, SUBDIR_PARSE);
- }
- *test = '/';
- }
-
- // read until blank line for HTTP version specified, else parse immediate
- while (blank >= 0 && (count = getLine(buf)) > 0) {
-
-#ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "Header: '%s'\n", buf);
-#endif
-
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- /* try and do our best to parse more lines */
- if ((strncasecmp(buf, Content_length, 15) == 0)) {
- if(prequest != request_GET)
- length = strtol(buf + 15, 0, 0); // extra read only for POST
- } else if ((strncasecmp(buf, "Cookie:", 7) == 0)) {
- for(test = buf + 7; isspace(*test); test++)
- ;
- cookie = strdup(test);
- }
-#endif
-
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if (strncasecmp(buf, "Authorization:", 14) == 0) {
- /* We only allow Basic credentials.
- * It shows up as "Authorization: Basic <userid:password>" where
- * the userid:password is base64 encoded.
- */
- for(test = buf + 14; isspace(*test); test++)
- ;
- if (strncasecmp(test, "Basic", 5) != 0)
- continue;
-
- test += 5; /* decodeBase64() skiping space self */
- decodeBase64(test);
- credentials = checkPerm(url, test);
- }
-#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
+ url = alloca(strlen(buf) + 12); /* + sizeof("/index.html\0") */
+ if (url == NULL) {
+ sendHeaders(HTTP_INTERNAL_SERVER_ERROR);
+ break;
+ }
+ strcpy(url, buf);
+ /* extract url args if present */
+ test = strchr(url, '?');
+ if (test) {
+ *test++ = 0;
+ config->query = test;
+ }
- } /* while extra header reading */
+ test = decodeString(url, 0);
+ if (test == NULL)
+ goto BAD_REQUEST;
+ if (test == (buf+1)) {
+ sendHeaders(HTTP_NOT_FOUND);
+ break;
+ }
+ /* algorithm stolen from libbb bb_simplify_path(),
+ but don't strdup and reducing trailing slash and protect out root */
+ purl = test = url;
+
+ do {
+ if (*purl == '/') {
+ if (*test == '/') { /* skip duplicate (or initial) slash */
+ continue;
+ } else if (*test == '.') {
+ if (test[1] == '/' || test[1] == 0) { /* skip extra '.' */
+ continue;
+ } else if ((test[1] == '.') && (test[2] == '/' || test[2] == 0)) {
+ ++test;
+ if (purl == url) {
+ /* protect out root */
+ goto BAD_REQUEST;
+ }
+ while (*--purl != '/') /* omit previous dir */;
+ continue;
+ }
+ }
+ }
+ *++purl = *test;
+ } while (*++test);
+
+ *++purl = 0; /* so keep last character */
+ test = purl; /* end ptr */
+
+ /* If URL is directory, adding '/' */
+ if (test[-1] != '/') {
+ if (is_directory(url + 1, 1, &sb)) {
+ config->httpd_found.found_moved_temporarily = url;
+ }
+ }
+#if DEBUG
+ fprintf(stderr, "url='%s', args=%s\n", url, config->query);
+#endif
+
+ test = url;
+ ip_allowed = checkPermIP();
+ while (ip_allowed && (test = strchr(test + 1, '/')) != NULL) {
+ /* have path1/path2 */
+ *test = '\0';
+ if (is_directory(url + 1, 1, &sb)) {
+ /* may be having subdir config */
+ parse_conf(url + 1, SUBDIR_PARSE);
+ ip_allowed = checkPermIP();
+ }
+ *test = '/';
+ }
+ if (blank >= 0) {
+ // read until blank line for HTTP version specified, else parse immediate
+ while (1) {
+ alarm(TIMEOUT);
+ count = getLine();
+ if (count <= 0)
+ break;
+
+#if DEBUG
+ fprintf(stderr, "Header: '%s'\n", buf);
+#endif
+
+#if ENABLE_FEATURE_HTTPD_CGI
+ /* try and do our best to parse more lines */
+ if ((strncasecmp(buf, Content_length, 15) == 0)) {
+ if (prequest != request_GET)
+ length = strtol(buf + 15, 0, 0); // extra read only for POST
+ } else if ((strncasecmp(buf, "Cookie:", 7) == 0)) {
+ for (test = buf + 7; isspace(*test); test++)
+ ;
+ cookie = strdup(test);
+ } else if ((strncasecmp(buf, "Content-Type:", 13) == 0)) {
+ for (test = buf + 13; isspace(*test); test++)
+ ;
+ content_type = strdup(test);
+ } else if ((strncasecmp(buf, "Referer:", 8) == 0)) {
+ for (test = buf + 8; isspace(*test); test++)
+ ;
+ config->referer = strdup(test);
+ }
+#endif
+
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ if (strncasecmp(buf, "Authorization:", 14) == 0) {
+ /* We only allow Basic credentials.
+ * It shows up as "Authorization: Basic <userid:password>" where
+ * the userid:password is base64 encoded.
+ */
+ for (test = buf + 14; isspace(*test); test++)
+ ;
+ if (strncasecmp(test, "Basic", 5) != 0)
+ continue;
+
+ test += 5; /* decodeBase64() skiping space self */
+ decodeBase64(test);
+ credentials = checkPerm(url, test);
+ }
+#endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
+ } /* while extra header reading */
+ }
+ (void) alarm(0);
+ if (config->alarm_signaled)
+ break;
- if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 ||
- checkPerm(NULL, config->rmt_ip) == 0) {
- /* protect listing [/path]/httpd_conf or IP deny */
-#ifdef CONFIG_FEATURE_HTTPD_CGI
+ if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 || ip_allowed == 0) {
+ /* protect listing [/path]/httpd_conf or IP deny */
+#if ENABLE_FEATURE_HTTPD_CGI
FORBIDDEN: /* protect listing /cgi-bin */
#endif
- sendHeaders(HTTP_FORBIDDEN);
- break;
- }
-
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- if (credentials <= 0 && checkPerm(url, ":") == 0) {
- sendHeaders(HTTP_UNAUTHORIZED);
- break;
- }
-#endif
-
- test = url + 1; /* skip first '/' */
-
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- /* if strange Content-Length */
- if (length < 0 || length > MAX_POST_SIZE)
- break;
-
- if (length > 0) {
- body = malloc(length + 1);
- if (body) {
- length = full_read(a_c_r, body, length);
- if(length < 0) // closed
- length = 0;
- body[length] = 0; // always null terminate for safety
- urlArgs = body;
- }
- }
-
- if (strncmp(test, "cgi-bin", 7) == 0) {
- if(test[7] == 0 || (test[7] == '/' && test[8] == 0))
- goto FORBIDDEN; // protect listing cgi-bin
- sendCgi(url, prequest, urlArgs, body, length, cookie);
- } else {
- if (prequest != request_GET)
- sendHeaders(HTTP_NOT_IMPLEMENTED);
- else {
-#endif /* CONFIG_FEATURE_HTTPD_CGI */
- if(purl[-1] == '/')
- strcpy(purl, "index.html");
- if ( stat(test, &sb ) == 0 ) {
- config->ContentLength = sb.st_size;
- config->last_mod = sb.st_mtime;
+ sendHeaders(HTTP_FORBIDDEN);
+ break;
+ }
+
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ if (credentials <= 0 && checkPerm(url, ":") == 0) {
+ sendHeaders(HTTP_UNAUTHORIZED);
+ break;
}
- sendFile(test, buf);
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- /* unset if non inetd looped */
- config->ContentLength = -1;
#endif
-#ifdef CONFIG_FEATURE_HTTPD_CGI
- }
- }
+ if (config->httpd_found.found_moved_temporarily) {
+ sendHeaders(HTTP_MOVED_TEMPORARILY);
+#if DEBUG
+ /* clear unforked memory flag */
+ config->httpd_found.found_moved_temporarily = NULL;
#endif
+ break;
+ }
- } while (0);
+ test = url + 1; /* skip first '/' */
+#if ENABLE_FEATURE_HTTPD_CGI
+ /* if strange Content-Length */
+ if (length < 0)
+ break;
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
-/* from inetd don`t looping: freeing, closing automatic from exit always */
-# ifdef DEBUG
- if (config->debugHttpd) fprintf(stderr, "closing socket\n");
+ if (strncmp(test, "cgi-bin", 7) == 0) {
+ if (test[7] == '/' && test[8] == 0)
+ goto FORBIDDEN; // protect listing cgi-bin/
+ sendCgi(url, prequest, length, cookie, content_type);
+ } else {
+ if (prequest != request_GET)
+ sendHeaders(HTTP_NOT_IMPLEMENTED);
+ else {
+#endif /* CONFIG_FEATURE_HTTPD_CGI */
+ if (purl[-1] == '/')
+ strcpy(purl, "index.html");
+ if (stat(test, &sb) == 0) {
+ config->ContentLength = sb.st_size;
+ config->last_mod = sb.st_mtime;
+ }
+ sendFile(test);
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ /* unset if non inetd looped */
+ config->ContentLength = -1;
+#endif
+
+#if ENABLE_FEATURE_HTTPD_CGI
+ }
+ }
+#endif
+
+ } while (0);
+
+
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+/* from inetd don't looping: freeing, closing automatic from exit always */
+# if DEBUG
+ fprintf(stderr, "closing socket\n");
# endif
# ifdef CONFIG_FEATURE_HTTPD_CGI
- free(body);
- free(cookie);
+ free(cookie);
+ free(content_type);
+ free(config->referer);
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ free(config->remoteuser);
+#endif
# endif
- shutdown(a_c_w, SHUT_WR);
- shutdown(a_c_r, SHUT_RD);
- close(config->accepted_socket);
-#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
+ shutdown(a_c_w, SHUT_WR);
+
+ /* Properly wait for remote to closed */
+ FD_ZERO(&s_fd);
+ FD_SET(a_c_r, &s_fd);
+
+ do {
+ tv.tv_sec = 2;
+ tv.tv_usec = 0;
+ retval = select(a_c_r + 1, &s_fd, NULL, NULL, &tv);
+ } while (retval > 0 && read(a_c_r, buf, sizeof(config->buf) > 0));
+
+ shutdown(a_c_r, SHUT_RD);
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ close(config->accepted_socket);
+#endif /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
}
/****************************************************************************
* $Return: (int) . . . . Always 0.
*
****************************************************************************/
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
static int miniHttpd(int server)
{
- fd_set readfd, portfd;
- int nfound;
-
- FD_ZERO(&portfd);
- FD_SET(server, &portfd);
-
- /* copy the ports we are watching to the readfd set */
- while (1) {
- readfd = portfd;
-
- /* Now wait INDEFINATELY on the set of sockets! */
- nfound = select(server + 1, &readfd, 0, 0, 0);
-
- switch (nfound) {
- case 0:
- /* select timeout error! */
- break ;
- case -1:
- /* select error */
- break;
- default:
- if (FD_ISSET(server, &readfd)) {
- int on;
- struct sockaddr_in fromAddr;
-
- unsigned int addr;
- socklen_t fromAddrLen = sizeof(fromAddr);
- int s = accept(server,
- (struct sockaddr *)&fromAddr, &fromAddrLen);
-
- if (s < 0) {
- continue;
- }
- config->accepted_socket = s;
- addr = ntohl(fromAddr.sin_addr.s_addr);
- sprintf(config->rmt_ip, "%u.%u.%u.%u",
- (unsigned char)(addr >> 24),
- (unsigned char)(addr >> 16),
- (unsigned char)(addr >> 8),
- addr & 0xff);
- config->port = ntohs(fromAddr.sin_port);
-#ifdef DEBUG
- if (config->debugHttpd) {
- error_msg("connection from IP=%s, port %u\n",
- config->rmt_ip, config->port);
- }
+ fd_set readfd, portfd;
+
+ FD_ZERO(&portfd);
+ FD_SET(server, &portfd);
+
+ /* copy the ports we are watching to the readfd set */
+ while (1) {
+ readfd = portfd;
+
+ /* Now wait INDEFINITELY on the set of sockets! */
+ if (select(server + 1, &readfd, 0, 0, 0) > 0) {
+ if (FD_ISSET(server, &readfd)) {
+ int on;
+ struct sockaddr_in fromAddr;
+
+ socklen_t fromAddrLen = sizeof(fromAddr);
+ int s = accept(server,
+ (struct sockaddr *)&fromAddr, &fromAddrLen);
+
+ if (s < 0) {
+ continue;
+ }
+ config->accepted_socket = s;
+ config->rmt_ip = ntohl(fromAddr.sin_addr.s_addr);
+#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
+ sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
+ (unsigned char)(config->rmt_ip >> 24),
+ (unsigned char)(config->rmt_ip >> 16),
+ (unsigned char)(config->rmt_ip >> 8),
+ config->rmt_ip & 0xff);
+ config->port = ntohs(fromAddr.sin_port);
+#if DEBUG
+ bb_error_msg("connection from IP=%s, port %u",
+ config->rmt_ip_str, config->port);
#endif
- /* set the KEEPALIVE option to cull dead connections */
- on = 1;
- setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof (on));
+#endif /* CONFIG_FEATURE_HTTPD_CGI */
- if (config->debugHttpd || fork() == 0) {
- /* This is the spawned thread */
- handleIncoming();
- if(!config->debugHttpd)
- exit(0);
- }
- close(s);
- }
- }
- } // while (1)
- return 0;
+ /* set the KEEPALIVE option to cull dead connections */
+ on = 1;
+ setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof(on));
+
+#if !DEBUG
+ if (fork() == 0)
+#endif
+ {
+ /* This is the spawned thread */
+#if ENABLE_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+ /* protect reload config, may be confuse checking */
+ signal(SIGHUP, SIG_IGN);
+#endif
+ handleIncoming();
+#if !DEBUG
+ exit(0);
+#endif
+ }
+ close(s);
+ }
+ }
+ } // while (1)
+ return 0;
}
#else
- /* from inetd */
+ /* from inetd */
static int miniHttpd(void)
{
- struct sockaddr_in fromAddrLen;
- socklen_t sinlen = sizeof (struct sockaddr_in);
- unsigned int addr;
-
- getpeername (0, (struct sockaddr *)&fromAddrLen, &sinlen);
- addr = ntohl(fromAddrLen.sin_addr.s_addr);
- sprintf(config->rmt_ip, "%u.%u.%u.%u",
- (unsigned char)(addr >> 24),
- (unsigned char)(addr >> 16),
- (unsigned char)(addr >> 8),
- addr & 0xff);
- config->port = ntohs(fromAddrLen.sin_port);
- handleIncoming();
- return 0;
+ struct sockaddr_in fromAddrLen;
+ socklen_t sinlen = sizeof(struct sockaddr_in);
+
+ getpeername(0, (struct sockaddr *)&fromAddrLen, &sinlen);
+ config->rmt_ip = ntohl(fromAddrLen.sin_addr.s_addr);
+#if ENABLE_FEATURE_HTTPD_CGI
+ sprintf(config->rmt_ip_str, "%u.%u.%u.%u",
+ (unsigned char)(config->rmt_ip >> 24),
+ (unsigned char)(config->rmt_ip >> 16),
+ (unsigned char)(config->rmt_ip >> 8),
+ config->rmt_ip & 0xff);
+#endif
+ config->port = ntohs(fromAddrLen.sin_port);
+ handleIncoming();
+ return 0;
}
-#endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
+#endif /* CONFIG_FEATURE_HTTPD_WITHOUT_INETD */
-#ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+#if ENABLE_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
static void sighup_handler(int sig)
{
/* set and reset */
struct sigaction sa;
+ parse_conf(default_path_httpd_conf, sig == SIGHUP ? SIGNALED_PARSE : FIRST_PARSE);
sa.sa_handler = sighup_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sigaction(SIGHUP, &sa, NULL);
- parse_conf(default_patch_httpd_conf,
- sig == SIGHUP ? SIGNALED_PARSE : FIRST_PARSE);
}
#endif
-#ifdef HTTPD_STANDALONE
-int main(int argc, char *argv[])
-#else
+enum httpd_opts_nums {
+ c_opt_config_file = 0,
+ d_opt_decode_url,
+ h_opt_home_httpd,
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(e_opt_encode_url,)
+ USE_FEATURE_HTTPD_BASIC_AUTH(r_opt_realm,)
+ USE_FEATURE_HTTPD_AUTH_MD5(m_opt_md5,)
+ USE_FEATURE_HTTPD_SETUID(u_opt_setuid,)
+ USE_FEATURE_HTTPD_WITHOUT_INETD(p_opt_port,)
+};
+
+static const char httpd_opts[] = "c:d:h:"
+ USE_FEATURE_HTTPD_ENCODE_URL_STR("e:")
+ USE_FEATURE_HTTPD_BASIC_AUTH("r:")
+ USE_FEATURE_HTTPD_AUTH_MD5("m:")
+ USE_FEATURE_HTTPD_SETUID("u:")
+ USE_FEATURE_HTTPD_WITHOUT_INETD("p:");
+
+#define OPT_CONFIG_FILE (1<<c_opt_config_file)
+#define OPT_DECODE_URL (1<<d_opt_decode_url)
+#define OPT_HOME_HTTPD (1<<h_opt_home_httpd)
+
+#define OPT_ENCODE_URL USE_FEATURE_HTTPD_ENCODE_URL_STR((1<<e_opt_encode_url)) \
+ SKIP_FEATURE_HTTPD_ENCODE_URL_STR(0)
+
+#define OPT_REALM USE_FEATURE_HTTPD_BASIC_AUTH((1<<r_opt_realm)) \
+ SKIP_FEATURE_HTTPD_BASIC_AUTH(0)
+
+#define OPT_MD5 USE_FEATURE_HTTPD_AUTH_MD5((1<<m_opt_md5)) \
+ SKIP_FEATURE_HTTPD_AUTH_MD5(0)
+
+#define OPT_SETUID USE_FEATURE_HTTPD_SETUID((1<<u_opt_setuid)) \
+ SKIP_FEATURE_HTTPD_SETUID(0)
+
+#define OPT_PORT USE_FEATURE_HTTPD_WITHOUT_INETD((1<<p_opt_port)) \
+ SKIP_FEATURE_HTTPD_WITHOUT_INETD(0)
+
+
int httpd_main(int argc, char *argv[])
-#endif
{
- const char *home_httpd = home;
+ unsigned opt;
+ const char *home_httpd = home;
+ char *url_for_decode;
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(const char *url_for_encode;)
+ USE_FEATURE_HTTPD_WITHOUT_INETD(const char *s_port;)
+ USE_FEATURE_HTTPD_WITHOUT_INETD(int server;)
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- int server;
-#endif
+ USE_FEATURE_HTTPD_SETUID(const char *s_uid;)
+ USE_FEATURE_HTTPD_SETUID(long uid = -1;)
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- long uid = -1;
-#endif
+ USE_FEATURE_HTTPD_AUTH_MD5(const char *pass;)
- config = xcalloc(1, sizeof(*config));
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- config->realm = "Web Server Authentication";
+ config = xzalloc(sizeof(*config));
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
+ config->realm = "Web Server Authentication";
#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- config->port = 80;
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ config->port = 80;
#endif
- config->ContentLength = -1;
+ config->ContentLength = -1;
- /* check if user supplied a port number */
- for (;;) {
- int c = getopt( argc, argv, "c:h:"
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- "p:v"
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- "e:"
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
- "d:"
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- "r:"
-#endif
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- "u:"
-#endif
- );
- if (c == EOF) break;
- switch (c) {
- case 'c':
- config->configFile = optarg;
- break;
- case 'h':
- home_httpd = optarg;
- break;
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- case 'v':
- config->debugHttpd = 1;
- break;
- case 'p':
- config->port = atoi(optarg);
- if(config->port <= 0 || config->port > 0xffff)
- error_msg_and_die("invalid %s for -p", optarg);
- break;
+ opt = getopt32(argc, argv, httpd_opts,
+ &(config->configFile), &url_for_decode, &home_httpd
+ USE_FEATURE_HTTPD_ENCODE_URL_STR(, &url_for_encode)
+ USE_FEATURE_HTTPD_BASIC_AUTH(, &(config->realm))
+ USE_FEATURE_HTTPD_AUTH_MD5(, &pass)
+ USE_FEATURE_HTTPD_SETUID(, &s_uid)
+ USE_FEATURE_HTTPD_WITHOUT_INETD(, &s_port)
+ );
+
+ if (opt & OPT_DECODE_URL) {
+ printf("%s", decodeString(url_for_decode, 1));
+ return 0;
+ }
+#if ENABLE_FEATURE_HTTPD_ENCODE_URL_STR
+ if (opt & OPT_ENCODE_URL) {
+ printf("%s", encodeString(url_for_encode));
+ return 0;
+ }
#endif
-#ifdef CONFIG_FEATURE_HTTPD_DECODE_URL_STR
- case 'd':
- printf("%s", decodeString(optarg));
- return 0;
+#if ENABLE_FEATURE_HTTPD_AUTH_MD5
+ if (opt & OPT_MD5) {
+ puts(pw_encrypt(pass, "$1$"));
+ return 0;
+ }
#endif
-#ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
- case 'e':
- printf("%s", encodeString(optarg));
- return 0;
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ if (opt & OPT_PORT)
+ config->port = bb_xgetlarg(s_port, 10, 1, 0xffff);
+#if ENABLE_FEATURE_HTTPD_SETUID
+ if (opt & OPT_SETUID) {
+ char *e;
+
+ uid = strtol(s_uid, &e, 0);
+ if (*e != '\0') {
+ /* not integer */
+ uid = bb_xgetpwnam(s_uid);
+ }
+ }
#endif
-#ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
- case 'r':
- config->realm = optarg;
- break;
#endif
-#ifdef CONFIG_FEATURE_HTTPD_SETUID
- case 'u':
- {
- char *e;
- uid = strtol(optarg, &e, 0);
- if(*e != '\0') {
- /* not integer */
- uid = my_getpwnam(optarg);
- }
- }
- break;
-#endif
- default:
- error_msg("%s", httpdVersion);
- show_usage();
- }
- }
-
- if(chdir(home_httpd)) {
- perror_msg_and_die("can`t chdir to %s", home_httpd);
- }
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- server = openServer();
+ xchdir(home_httpd);
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+ server = openServer();
# ifdef CONFIG_FEATURE_HTTPD_SETUID
- /* drop privilegies */
- if(uid > 0)
- setuid(uid);
+ /* drop privileges */
+ if (uid > 0)
+ xsetuid(uid);
# endif
-# ifdef CONFIG_FEATURE_HTTPD_CGI
- addEnvPort("SERVER");
+#endif
+
+#if ENABLE_FEATURE_HTTPD_CGI
+ {
+ char *p = getenv("PATH");
+ if (p) {
+ p = xstrdup(p);
+ }
+ clearenv();
+ if (p)
+ setenv("PATH", p, 1);
+# ifdef CONFIG_FEATURE_HTTPD_WITHOUT_INETD
+ addEnvPort("SERVER");
# endif
+ }
#endif
-#ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
- sighup_handler(0);
+#if ENABLE_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
+ sighup_handler(0);
#else
- parse_conf(default_patch_httpd_conf, FIRST_PARSE);
+ parse_conf(default_path_httpd_conf, FIRST_PARSE);
#endif
-#ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
- if (!config->debugHttpd) {
- if (daemon(1, 0) < 0) /* don`t change curent directory */
- perror_msg_and_die("daemon");
- }
- return miniHttpd(server);
+#if ENABLE_FEATURE_HTTPD_WITHOUT_INETD
+# if !DEBUG
+ xdaemon(1, 0); /* don't change curent directory */
+# endif
+ return miniHttpd(server);
#else
- return miniHttpd();
+ return miniHttpd();
#endif
}
projects / oweals / busybox.git / blobdiff