2 * httpd implementation for busybox
4 * Copyright (C) 2002,2003 Glenn Engel <glenne@engel.org>
5 * Copyright (C) 2003 Vladimir Oleynik <dzo@simtreas.ru>
7 * simplify patch stolen from libbb without using strdup
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *****************************************************************************
27 * httpd -p 8080 -h $HOME/public_html
28 * or for daemon start from rc script with uid=0:
30 * This is equivalent if www user have uid=80 to
31 * httpd -p 80 -u 80 -h /www -c /etc/httpd.conf -r "Web Server Authentication"
34 * When a url contains "cgi-bin" it is assumed to be a cgi script. The
35 * server changes directory to the location of the script and executes it
36 * after setting QUERY_STRING and other environment variables. If url args
37 * are included in the url or as a post, the args are placed into decoded
38 * environment variables. e.g. /cgi-bin/setup?foo=Hello%20World will set
39 * the $CGI_foo environment variable to "Hello World" while
40 * CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV enabled.
42 * The server can also be invoked as a url arg decoder and html text encoder
44 * foo=`httpd -d $foo` # decode "Hello%20World" as "Hello World"
45 * bar=`httpd -e "<Hello World>"` # encode as "<Hello World>"
46 * Note that url encoding for arguments is not the same as html encoding for
47 * presenation. -d decodes a url-encoded argument while -e encodes in html
50 * httpd.conf has the following format:
52 * A:172.20. # Allow any address that begins with 172.20
53 * A:10.10. # Allow any address that begins with 10.10.
54 * A:10.20 # Allow any address that previous set and 10.200-209.X.X
55 * A:127.0.0.1 # Allow local loopback connections
56 * D:* # Deny from other IP connections
57 * /cgi-bin:foo:bar # Require user foo, pwd bar on urls starting with /cgi-bin/
58 * /adm:admin:setup # Require user admin, pwd setup on urls starting with /adm/
59 * /adm:toor:PaSsWd # or user toor, pwd PaSsWd on urls starting with /adm/
60 * .au:audio/basic # additional mime type for audio.au files
62 * A/D may be as a/d or allow/deny - first char case unsensitive
63 * Deny IP rules take precedence over allow rules.
66 * The Deny/Allow IP logic:
68 * - Default is to allow all. No addresses are denied unless
69 * denied with a D: rule.
70 * - Order of Deny/Allow rules is significant
71 * - Deny rules take precedence over allow rules.
72 * - If a deny all rule (D:*) is used it acts as a catch-all for unmatched
74 * - Specification of Allow all (A:*) is a no-op
77 * 1. Allow only specified addresses
78 * A:172.20. # Allow any address that begins with 172.20
79 * A:10.10. # Allow any address that begins with 10.10.
80 * A:10.10 # Allow any address that previous set and 10.100-109.X.X
81 * A:127.0.0.1 # Allow local loopback connections
82 * D:* # Deny from other IP connections
84 * 2. Only deny specified addresses
85 * D:1.2.3. # deny from 1.2.3.0 - 1.2.3.255
86 * D:2.3.4. # deny from 2.3.4.0 - 2.3.4.255
87 * A:* # (optional line added for clarity)
89 * If a sub directory contains a config file it is parsed and merged with
90 * any existing settings as if it was appended to the original configuration
91 * except that all previous IP config rules are discarded.
93 * subdir paths are relative to the containing subdir and thus cannot
94 * affect the parent rules.
96 * Note that since the sub dir is parsed in the forked thread servicing the
97 * subdir http request, any merge is discarded when the process exits. As a
98 * result, the subdir settings only have a lifetime of a single request.
101 * If -c is not set, an attempt will be made to open the default
102 * root configuration file. If -c is set and the file is not found, the
103 * server exits with an error.
109 #include <ctype.h> /* for isspace */
111 #include <stdlib.h> /* for malloc */
113 #include <unistd.h> /* for close */
115 #include <sys/types.h>
116 #include <sys/socket.h> /* for connect and socket*/
117 #include <netinet/in.h> /* for sockaddr_in */
118 #include <sys/time.h>
119 #include <sys/stat.h>
120 #include <sys/wait.h>
121 #include <fcntl.h> /* for open modes */
125 static const char httpdVersion[] = "busybox httpd/1.27 25-May-2003";
126 static const char default_path_httpd_conf[] = "/etc";
127 static const char httpd_conf[] = "httpd.conf";
128 static const char home[] = "./";
130 // Note: bussybox xfuncs are not used because we want the server to keep running
131 // if something bad happens due to a malformed user request.
132 // As a result, all memory allocation after daemonize
133 // is checked rigorously
137 /* Configure options, disabled by default as custom httpd feature */
139 /* disabled as optional features */
140 //#define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
141 //#define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
142 //#define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
143 //#define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
144 //#define CONFIG_FEATURE_HTTPD_SETUID
145 //#define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
147 /* If set, use this server from internet superserver only */
148 //#define CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
150 /* You can use this server as standalone, require libbb.a for linking */
151 //#define HTTPD_STANDALONE
153 /* Config options, disable this for do very small module */
154 //#define CONFIG_FEATURE_HTTPD_CGI
155 //#define CONFIG_FEATURE_HTTPD_BASIC_AUTH
157 #ifdef HTTPD_STANDALONE
158 /* standalone, enable all features */
159 #undef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
160 /* unset config option for remove warning as redefined */
161 #undef CONFIG_FEATURE_HTTPD_BASIC_AUTH
162 #undef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
163 #undef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
164 #undef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
165 #undef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
166 #undef CONFIG_FEATURE_HTTPD_CGI
167 #undef CONFIG_FEATURE_HTTPD_SETUID
168 #undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
169 /* enable all features now */
170 #define CONFIG_FEATURE_HTTPD_BASIC_AUTH
171 #define CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
172 #define CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
173 #define CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
174 #define CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
175 #define CONFIG_FEATURE_HTTPD_CGI
176 #define CONFIG_FEATURE_HTTPD_SETUID
177 #define CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
179 /* require from libbb.a for linking */
180 const char *bb_applet_name = "httpd";
182 void bb_show_usage(void)
184 fprintf(stderr, "Usage: %s [-p <port>] [-c configFile] [-d/-e <string>] "
185 "[-r realm] [-u user] [-h homedir]\n", bb_applet_name);
190 #ifdef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
191 #undef CONFIG_FEATURE_HTTPD_SETUID /* use inetd user.group config settings */
192 #undef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP /* so is not daemon */
193 /* inetd set stderr to accepted socket and we can`t true see debug messages */
197 /* CGI environ size */
198 #ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
199 #define ENVSIZE 70 /* set max CGI variable */
201 #define ENVSIZE 15 /* minimal requires */
204 #define MAX_POST_SIZE (64*1024) /* 64k. Its Small? May be ;) */
206 #define MAX_MEMORY_BUFF 8192 /* IO buffer */
208 typedef struct HT_ACCESS {
210 struct HT_ACCESS *next;
211 char before_colon[1]; /* really bigger, must last */
216 #ifdef CONFIG_FEATURE_HTTPD_CGI
217 char *envp[ENVSIZE+1];
220 char buf[MAX_MEMORY_BUFF];
222 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
225 const char *configFile;
227 char rmt_ip[16]; /* for set env REMOTE_ADDR */
228 unsigned port; /* server initial port and for
229 set env REMOTE_PORT */
231 const char *found_mime_type;
232 off_t ContentLength; /* -1 - unknown */
235 Htaccess *ip_a_d; /* config allow/deny lines */
237 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
238 Htaccess *auth; /* config user:password lines */
240 #ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
241 Htaccess *mime_a; /* config mime types */
244 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
246 #define a_c_r config->accepted_socket
247 #define a_c_w config->accepted_socket
248 int debugHttpd; /* if seted, don`t stay daemon */
255 static HttpdConfig *config;
257 static const char request_GET[] = "GET"; /* size algorithic optimize */
259 static const char* const suffixTable [] = {
260 /* Warning: shorted equalent suffix in one line must be first */
261 ".htm.html", "text/html",
262 ".jpg.jpeg", "image/jpeg",
265 ".txt.h.c.cc.cpp", "text/plain",
268 ".avi", "video/x-msvideo",
269 ".qt.mov", "video/quicktime",
270 ".mpe.mpeg", "video/mpeg",
271 ".mid.midi", "audio/midi",
272 ".mp3", "audio/mpeg",
273 #if 0 /* unpopular */
274 ".au", "audio/basic",
275 ".pac", "application/x-ns-proxy-autoconfig",
276 ".vrml.wrl", "model/vrml",
278 0, "application/octet-stream" /* default */
284 HTTP_UNAUTHORIZED = 401, /* authentication needed, respond with auth hdr */
285 HTTP_NOT_FOUND = 404,
286 HTTP_NOT_IMPLEMENTED = 501, /* used for unrecognized requests */
287 HTTP_BAD_REQUEST = 400, /* malformed syntax */
288 HTTP_FORBIDDEN = 403,
289 HTTP_INTERNAL_SERVER_ERROR = 500,
290 #if 0 /* future use */
292 HTTP_SWITCHING_PROTOCOLS = 101,
295 HTTP_NON_AUTHORITATIVE_INFO = 203,
296 HTTP_NO_CONTENT = 204,
297 HTTP_MULTIPLE_CHOICES = 300,
298 HTTP_MOVED_PERMANENTLY = 301,
299 HTTP_MOVED_TEMPORARILY = 302,
300 HTTP_NOT_MODIFIED = 304,
301 HTTP_PAYMENT_REQUIRED = 402,
302 HTTP_BAD_GATEWAY = 502,
303 HTTP_SERVICE_UNAVAILABLE = 503, /* overload, maintenance */
304 HTTP_RESPONSE_SETSIZE=0xffffffff
310 HttpResponseNum type;
315 static const HttpEnumString httpResponseNames[] = {
317 { HTTP_NOT_IMPLEMENTED, "Not Implemented",
318 "The requested method is not recognized by this server." },
319 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
320 { HTTP_UNAUTHORIZED, "Unauthorized", "" },
322 { HTTP_NOT_FOUND, "Not Found",
323 "The requested URL was not found on this server." },
324 { HTTP_BAD_REQUEST, "Bad Request", "Unsupported method." },
325 { HTTP_FORBIDDEN, "Forbidden", "" },
326 { HTTP_INTERNAL_SERVER_ERROR, "Internal Server Error",
327 "Internal Server Error" },
328 #if 0 /* not implemented */
329 { HTTP_CREATED, "Created" },
330 { HTTP_ACCEPTED, "Accepted" },
331 { HTTP_NO_CONTENT, "No Content" },
332 { HTTP_MULTIPLE_CHOICES, "Multiple Choices" },
333 { HTTP_MOVED_PERMANENTLY, "Moved Permanently" },
334 { HTTP_MOVED_TEMPORARILY, "Moved Temporarily" },
335 { HTTP_NOT_MODIFIED, "Not Modified" },
336 { HTTP_BAD_GATEWAY, "Bad Gateway", "" },
337 { HTTP_SERVICE_UNAVAILABLE, "Service Unavailable", "" },
342 static const char RFC1123FMT[] = "%a, %d %b %Y %H:%M:%S GMT";
343 static const char Content_length[] = "Content-length:";
347 static void free_config_lines(Htaccess **pprev)
349 Htaccess *prev = *pprev;
352 Htaccess *cur = prev;
361 #define FIRST_PARSE 0
362 #define SUBDIR_PARSE 1
363 #define SIGNALED_PARSE 2
364 #define FIND_FROM_HTTPD_ROOT 3
365 /****************************************************************************
367 > $Function: parse_conf()
369 * $Description: parse configuration file into in-memory linked list.
371 * The first non-white character is examined to determine if the config line
372 * is one of the following:
373 * .ext:mime/type # new mime type not compiled into httpd
374 * [adAD]:from # ip address allow/deny, * for wildcard
375 * /path:user:pass # username/password
377 * Any previous IP rules are discarded.
378 * If the flag argument is not SUBDIR_PARSE then all /path and mime rules
379 * are also discarded. That is, previous settings are retained if flag is
383 * (const char *) path . . null for ip address checks, path for password
385 * (int) flag . . . . . . the source of the parse request.
389 ****************************************************************************/
390 static void parse_conf(const char *path, int flag)
394 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
398 const char *cf = config->configFile;
403 /* free previous ip setup if present */
404 free_config_lines(&config->ip_a_d);
405 config->flg_deny_all = 0;
406 /* retain previous auth and mime config only for subdir parse */
407 if(flag != SUBDIR_PARSE) {
408 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
409 free_config_lines(&config->auth)
411 ; /* appease compiler warnings if option is not set */
412 #ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
413 free_config_lines(&config->mime_a);
417 if(flag == SUBDIR_PARSE || cf == NULL) {
418 cf = alloca(strlen(path) + sizeof(httpd_conf) + 2);
420 if(flag == FIRST_PARSE)
421 bb_error_msg_and_die(bb_msg_memory_exhausted);
424 sprintf((char *)cf, "%s/%s", path, httpd_conf);
427 while((f = fopen(cf, "r")) == NULL) {
428 if(flag != FIRST_PARSE) {
429 /* config file not found, no changes to config */
432 if(config->configFile) /* if -c option given */
433 bb_perror_msg_and_die("%s", cf);
434 flag = FIND_FROM_HTTPD_ROOT;
438 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
441 /* This could stand some work */
442 while ( (p0 = fgets(buf, sizeof(buf), f)) != NULL) {
444 for(p = p0; *p0 != 0 && *p0 != '#'; p0++) {
447 if(*p0 == ':' && c == NULL)
453 /* test for empty or strange line */
454 if (c == NULL || *c == 0)
461 /* memorize deny all */
462 config->flg_deny_all++;
464 /* skip default other "word:*" config lines */
471 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
474 #ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
480 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
482 /* make full path from httpd root / curent_path / config_line_path */
483 cf = flag == SUBDIR_PARSE ? path : "";
484 p0 = malloc(strlen(cf) + (c - buf) + 2 + strlen(c));
488 sprintf(p0, "/%s%s", cf, buf);
490 /* another call bb_simplify_path */
495 if (*cf == '/') { /* skip duplicate (or initial) slash */
497 } else if (*cf == '.') {
498 if (cf[1] == '/' || cf[1] == 0) { /* remove extra '.' */
500 } else if ((cf[1] == '.') && (cf[2] == '/' || cf[2] == 0)) {
503 while (*--p != '/'); /* omit previous dir */
512 if ((p == p0) || (*p != '/')) { /* not a trailing slash */
513 ++p; /* so keep last character */
516 sprintf(p0, "%s:%s", p0, c);
519 /* storing current config line */
521 cur = calloc(1, sizeof(Htaccess) + strlen(p0));
523 cf = strcpy(cur->before_colon, p0);
526 cur->after_colon = c;
527 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
531 if(*cf == 'A' || *cf == 'D') {
533 /* Deny:form_IP move top */
534 cur->next = config->ip_a_d;
535 config->ip_a_d = cur;
537 /* add to bottom A:form_IP config line */
538 Htaccess *prev_IP = config->ip_a_d;
540 if(prev_IP == NULL) {
541 config->ip_a_d = cur;
544 prev_IP = prev_IP->next;
549 #ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
550 else if(*cf == '.') {
551 /* config .mime line move top for overwrite previous */
552 cur->next = config->mime_a;
553 config->mime_a = cur;
557 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
558 else if(prev == NULL) {
560 config->auth = prev = cur;
562 /* sort path, if current lenght eq or bigger then move up */
563 Htaccess *prev_hti = config->auth;
567 for(hti = prev_hti; hti; hti = hti->next) {
568 if(l >= strlen(hti->before_colon)) {
569 /* insert before hti */
571 if(prev_hti != hti) {
572 prev_hti->next = cur;
580 prev_hti = prev_hti->next;
582 if(!hti) { /* not inserted, add to bottom */
593 #ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
594 /****************************************************************************
596 > $Function: encodeString()
598 * $Description: Given a string, html encode special characters.
599 * This is used for the -e command line option to provide an easy way
600 * for scripts to encode result data without confusing browsers. The
601 * returned string pointer is memory allocated by malloc().
604 * (const char *) string . . The first string to encode.
606 * $Return: (char *) . . . .. . . A pointer to the encoded string.
608 * $Errors: Returns a null string ("") if memory is not available.
610 ****************************************************************************/
611 static char *encodeString(const char *string)
613 /* take the simple route and encode everything */
614 /* could possibly scan once to get length. */
615 int len = strlen(string);
616 char *out = malloc(len*5 +1);
621 while ((ch = *string++)) {
622 // very simple check for what to encode
623 if (isalnum(ch)) *p++ = ch;
624 else p += sprintf(p, "&#%d", (unsigned char) ch);
629 #endif /* CONFIG_FEATURE_HTTPD_ENCODE_URL_STR */
631 /****************************************************************************
633 > $Function: decodeString()
635 * $Description: Given a URL encoded string, convert it to plain ascii.
636 * Since decoding always makes strings smaller, the decode is done in-place.
637 * Thus, callers should strdup() the argument if they do not want the
638 * argument modified. The return is the original pointer, allowing this
639 * function to be easily used as arguments to other functions.
642 * (char *) string . . . The first string to decode.
643 * (int) flag . . . 1 if require decode '+' as ' ' for CGI
645 * $Return: (char *) . . . . A pointer to the decoded string (same as input).
649 ****************************************************************************/
650 static char *decodeString(char *string, int flag_plus_to_space)
652 /* note that decoded string is always shorter than original */
657 if (*ptr == '+' && flag_plus_to_space) { *string++ = ' '; ptr++; }
658 else if (*ptr != '%') *string++ = *ptr++;
661 sscanf(ptr+1, "%2X", &value);
671 #ifdef CONFIG_FEATURE_HTTPD_CGI
672 /****************************************************************************
674 > $Function: addEnv()
676 * $Description: Add an enviornment variable setting to the global list.
677 * A NAME=VALUE string is allocated, filled, and added to the list of
678 * environment settings passed to the cgi execution script.
681 * (char *) name_before_underline - The first part environment variable name.
682 * (char *) name_after_underline - The second part environment variable name.
683 * (char *) value . . The value to which the env variable is set.
687 * $Errors: Silently returns if the env runs out of space to hold the new item
689 ****************************************************************************/
690 static void addEnv(const char *name_before_underline,
691 const char *name_after_underline, const char *value)
694 const char *underline;
696 if (config->envCount >= ENVSIZE)
700 underline = *name_after_underline ? "_" : "";
701 asprintf(&s, "%s%s%s=%s", name_before_underline, underline,
702 name_after_underline, value);
704 config->envp[config->envCount++] = s;
705 config->envp[config->envCount] = 0;
709 /* set environs SERVER_PORT and REMOTE_PORT */
710 static void addEnvPort(const char *port_name)
714 sprintf(buf, "%u", config->port);
715 addEnv(port_name, "PORT", buf);
717 #endif /* CONFIG_FEATURE_HTTPD_CGI */
719 #ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
720 /****************************************************************************
722 > $Function: addEnvCgi
724 * $Description: Create environment variables given a URL encoded arg list.
725 * For each variable setting the URL encoded arg list, create a corresponding
726 * environment variable. URL encoded arguments have the form
727 * name1=value1&name2=value2&name3=&ignores
728 * from this example, name3 set empty value, tail without '=' skiping
731 * (char *) pargs . . . . A pointer to the URL encoded arguments.
737 ****************************************************************************/
738 static void addEnvCgi(const char *pargs)
742 char *namelist; /* space separated list of arg names */
743 if (pargs==0) return;
745 /* args are a list of name=value&name2=value2 sequences */
746 namelist = (char *) malloc(strlen(pargs));
747 if (namelist) namelist[0]=0;
748 memargs = args = strdup(pargs);
749 while (args && *args) {
750 const char *name = args;
751 char *value = strchr(args, '=');
753 if (!value) /* &XXX without '=' */
756 args = strchr(value, '&');
759 addEnv("CGI", name, decodeString(value, 1));
760 if (*namelist) strcat(namelist, " ");
761 strcat(namelist, name);
765 addEnv("CGI", "ARGLIST_", namelist);
769 #endif /* CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV */
772 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
773 /****************************************************************************
775 > $Function: decodeBase64()
777 > $Description: Decode a base 64 data stream as per rfc1521.
778 * Note that the rfc states that none base64 chars are to be ignored.
779 * Since the decode always results in a shorter size than the input, it is
780 * OK to pass the input arg as an output arg.
783 * (char *) Data . . . . A pointer to a base64 encoded string.
784 * Where to place the decoded data.
790 ****************************************************************************/
791 static void decodeBase64(char *Data)
794 const unsigned char *in = Data;
795 // The decoded size will be at most 3/4 the size of the encoded
796 unsigned long ch = 0;
802 if(t >= '0' && t <= '9')
804 else if(t >= 'A' && t <= 'Z')
806 else if(t >= 'a' && t <= 'z')
820 *Data++ = (char) (ch >> 16);
821 *Data++ = (char) (ch >> 8);
831 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
832 /****************************************************************************
834 > $Function: openServer()
836 * $Description: create a listen server socket on the designated port.
838 * $Return: (int) . . . A connection socket. -1 for errors.
842 ****************************************************************************/
843 static int openServer(void)
845 struct sockaddr_in lsocket;
848 /* create the socket right now */
849 /* inet_addr() returns a value that is already in network order */
850 memset(&lsocket, 0, sizeof(lsocket));
851 lsocket.sin_family = AF_INET;
852 lsocket.sin_addr.s_addr = INADDR_ANY;
853 lsocket.sin_port = htons(config->port) ;
854 fd = socket(AF_INET, SOCK_STREAM, 0);
856 /* tell the OS it's OK to reuse a previous address even though */
857 /* it may still be in a close down state. Allows bind to succeed. */
860 setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, (void *)&on, sizeof(on)) ;
862 setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on)) ;
864 if (bind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket)) == 0) {
866 signal(SIGCHLD, SIG_IGN); /* prevent zombie (defunct) processes */
868 bb_perror_msg_and_die("bind");
871 bb_perror_msg_and_die("create socket");
875 #endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
877 /****************************************************************************
879 > $Function: sendHeaders()
881 * $Description: Create and send HTTP response headers.
882 * The arguments are combined and sent as one write operation. Note that
883 * IE will puke big-time if the headers are not sent in one packet and the
884 * second packet is delayed for any reason.
887 * (HttpResponseNum) responseNum . . . The result code to send.
889 * $Return: (int) . . . . writing errors
891 ****************************************************************************/
892 static int sendHeaders(HttpResponseNum responseNum)
894 char *buf = config->buf;
895 const char *responseString = "";
896 const char *infoString = 0;
898 time_t timer = time(0);
903 i < (sizeof(httpResponseNames)/sizeof(httpResponseNames[0])); i++) {
904 if (httpResponseNames[i].type == responseNum) {
905 responseString = httpResponseNames[i].name;
906 infoString = httpResponseNames[i].info;
910 if (responseNum != HTTP_OK) {
911 config->found_mime_type = "text/html"; // error message is HTML
914 /* emit the current date */
915 strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&timer));
917 "HTTP/1.0 %d %s\nContent-type: %s\r\n"
918 "Date: %s\r\nConnection: close\r\n",
919 responseNum, responseString, config->found_mime_type, timeStr);
921 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
922 if (responseNum == HTTP_UNAUTHORIZED) {
923 len += sprintf(buf+len, "WWW-Authenticate: Basic realm=\"%s\"\r\n",
927 if (config->ContentLength != -1) { /* file */
928 strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
929 len += sprintf(buf+len, "Last-Modified: %s\r\n%s %ld\r\n",
930 timeStr, Content_length, config->ContentLength);
935 len += sprintf(buf+len,
936 "<HEAD><TITLE>%d %s</TITLE></HEAD>\n"
937 "<BODY><H1>%d %s</H1>\n%s\n</BODY>\n",
938 responseNum, responseString,
939 responseNum, responseString, infoString);
942 if (config->debugHttpd) fprintf(stderr, "Headers: '%s'", buf);
944 return bb_full_write(a_c_w, buf, len);
947 /****************************************************************************
949 > $Function: getLine()
951 * $Description: Read from the socket until an end of line char found.
953 * Characters are read one at a time until an eol sequence is found.
956 * (char *) buf . . Where to place the read result.
958 * $Return: (int) . . . . number of characters read. -1 if error.
960 ****************************************************************************/
961 static int getLine(char *buf)
965 while (read(a_c_r, buf + count, 1) == 1) {
966 if (buf[count] == '\r') continue;
967 if (buf[count] == '\n') {
971 if(count < (MAX_MEMORY_BUFF-1)) /* check owerflow */
974 if (count) return count;
978 #ifdef CONFIG_FEATURE_HTTPD_CGI
979 /****************************************************************************
981 > $Function: sendCgi()
983 * $Description: Execute a CGI script and send it's stdout back
985 * Environment variables are set up and the script is invoked with pipes
986 * for stdin/stdout. If a post is being done the script is fed the POST
987 * data in addition to setting the QUERY_STRING variable (for GETs or POSTs).
990 * (const char *) url . . . The requested URL (with leading /).
991 * (const char *urlArgs). . Any URL arguments.
992 * (const char *body) . . . POST body contents.
993 * (int bodyLen) . . . . . Length of the post body.
994 * (const char *cookie) . . For set HTTP_COOKIE.
997 * $Return: (char *) . . . . A pointer to the decoded string (same as input).
1001 ****************************************************************************/
1002 static int sendCgi(const char *url,
1003 const char *request, const char *urlArgs,
1004 const char *body, int bodyLen, const char *cookie)
1006 int fromCgi[2]; /* pipe for reading data from CGI */
1007 int toCgi[2]; /* pipe for sending data to CGI */
1009 static char * argp[] = { 0, 0 };
1016 if (pipe(fromCgi) != 0) {
1019 if (pipe(toCgi) != 0) {
1032 char *purl = strdup( url );
1033 char realpath_buff[MAXPATHLEN];
1041 dup2(inFd, 0); // replace stdin with the pipe
1042 dup2(outFd, 1); // replace stdout with the pipe
1044 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1045 if (!config->debugHttpd)
1047 dup2(outFd, 2); // replace stderr with the pipe
1058 while((script = strchr( script + 1, '/' )) != NULL) {
1059 /* have script.cgi/PATH_INFO or dirs/script.cgi[/PATH_INFO] */
1063 if(is_directory(purl + 1, 1, &sb) == 0) {
1064 /* not directory, found script.cgi/PATH_INFO */
1068 *script = '/'; /* is directory, find next '/' */
1070 addEnv("PATH", "INFO", script); /* set /PATH_INFO or NULL */
1071 addEnv("PATH", "", getenv("PATH"));
1072 addEnv("REQUEST", "METHOD", request);
1074 char *uri = alloca(strlen(purl) + 2 + strlen(urlArgs));
1076 sprintf(uri, "%s?%s", purl, urlArgs);
1077 addEnv("REQUEST", "URI", uri);
1079 addEnv("REQUEST", "URI", purl);
1082 *script = '\0'; /* reduce /PATH_INFO */
1083 /* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
1084 addEnv("SCRIPT_NAME", "", purl);
1085 addEnv("QUERY_STRING", "", urlArgs);
1086 addEnv("SERVER", "SOFTWARE", httpdVersion);
1087 addEnv("SERVER", "PROTOCOL", "HTTP/1.0");
1088 addEnv("GATEWAY_INTERFACE", "", "CGI/1.1");
1089 #ifdef CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
1090 addEnv("REMOTE", "ADDR", config->rmt_ip);
1091 addEnvPort("REMOTE");
1093 addEnv("REMOTE_ADDR", "", config->rmt_ip);
1098 sprintf(sbl, "%d", bodyLen);
1099 addEnv("CONTENT_LENGTH", "", sbl);
1102 addEnv("HTTP_COOKIE", "", cookie);
1104 #ifdef CONFIG_FEATURE_HTTPD_SET_CGI_VARS_TO_ENV
1105 if (request != request_GET) {
1112 /* set execve argp[0] without path */
1113 argp[0] = strrchr( purl, '/' ) + 1;
1114 /* but script argp[0] must have absolute path and chdiring to this */
1115 if(realpath(purl + 1, realpath_buff) != NULL) {
1116 script = strrchr(realpath_buff, '/');
1119 if(chdir(realpath_buff) == 0) {
1121 // now run the program. If it fails,
1122 // use _exit() so no destructors
1123 // get called and make a mess.
1124 execve(realpath_buff, argp, config->envp);
1128 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1129 config->accepted_socket = 1; /* send to stdout */
1131 sendHeaders(HTTP_NOT_FOUND);
1138 /* parent process */
1145 if (body) bb_full_write(outFd, body, bodyLen);
1149 struct timeval timeout;
1156 FD_SET(inFd, &readSet);
1158 /* Now wait on the set of sockets! */
1160 timeout.tv_usec = 10000;
1161 nfound = select(inFd + 1, &readSet, 0, 0, &timeout);
1164 if (waitpid(pid, &status, WNOHANG) > 0) {
1167 if (config->debugHttpd) {
1168 if (WIFEXITED(status))
1169 bb_error_msg("piped has exited with status=%d", WEXITSTATUS(status));
1170 if (WIFSIGNALED(status))
1171 bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
1180 // There is something to read
1181 count = bb_full_read(inFd, buf, sizeof(buf)-1);
1182 // If a read returns 0 at this point then some type of error has
1183 // occurred. Bail now.
1184 if (count == 0) break;
1187 /* check to see if the user script added headers */
1188 if (strncmp(buf, "HTTP/1.0 200 OK\n", 4) != 0) {
1189 bb_full_write(s, "HTTP/1.0 200 OK\n", 16);
1191 if (strstr(buf, "ontent-") == 0) {
1192 bb_full_write(s, "Content-type: text/plain\n\n", 26);
1196 bb_full_write(s, buf, count);
1198 if (config->debugHttpd)
1199 fprintf(stderr, "cgi read %d bytes\n", count);
1207 #endif /* CONFIG_FEATURE_HTTPD_CGI */
1209 /****************************************************************************
1211 > $Function: sendFile()
1213 * $Description: Send a file response to an HTTP request
1216 * (const char *) url . . The URL requested.
1217 * (char *) buf . . . . . The stack buffer.
1219 * $Return: (int) . . . . . . Always 0.
1221 ****************************************************************************/
1222 static int sendFile(const char *url, char *buf)
1226 const char * const * table;
1227 const char * try_suffix;
1229 suffix = strrchr(url, '.');
1231 for (table = suffixTable; *table; table += 2)
1232 if(suffix != NULL && (try_suffix = strstr(*table, suffix)) != 0) {
1233 try_suffix += strlen(suffix);
1234 if(*try_suffix == 0 || *try_suffix == '.')
1237 /* also, if not found, set default as "application/octet-stream"; */
1238 config->found_mime_type = *(table+1);
1239 #ifdef CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
1243 for (cur = config->mime_a; cur; cur = cur->next) {
1244 if(strcmp(cur->before_colon, suffix) == 0) {
1245 config->found_mime_type = cur->after_colon;
1250 #endif /* CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES */
1253 if (config->debugHttpd)
1254 fprintf(stderr, "Sending file '%s' Content-type: %s\n",
1255 url, config->found_mime_type);
1258 f = open(url, O_RDONLY);
1262 sendHeaders(HTTP_OK);
1263 while ((count = bb_full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
1264 bb_full_write(a_c_w, buf, count);
1269 if (config->debugHttpd)
1270 bb_perror_msg("Unable to open '%s'", url);
1272 sendHeaders(HTTP_NOT_FOUND);
1278 /****************************************************************************
1280 > $Function: checkPerm()
1282 * $Description: Check the permission file for access.
1284 * If config file isn't present, everything is allowed.
1285 * Entries are of the form you can see example from header source
1288 * (const char *) path . . . . The file path or NULL for ip addresses.
1289 * (const char *) request . . . User information to validate.
1291 * $Return: (int) . . . . . . . . . 1 if request OK, 0 otherwise.
1293 ****************************************************************************/
1295 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1296 static int checkPerm(const char *path, const char *request)
1302 int ipaddr = path == NULL;
1303 const char *prev = NULL;
1305 /* This could stand some work */
1306 for (cur = ipaddr ? config->ip_a_d : config->auth; cur; cur = cur->next) {
1307 p0 = cur->before_colon;
1308 if(prev != NULL && strcmp(prev, p0) != 0)
1309 continue; /* find next identical */
1310 p = cur->after_colon;
1312 if (config->debugHttpd)
1313 fprintf(stderr,"checkPerm: '%s' ? '%s'\n",
1314 (ipaddr ? (*p ? p : "*") : p0), request);
1317 if(strncmp(p, request, strlen(p)) != 0)
1319 return *p0 == 'A'; /* Allow/Deny */
1323 if(strncmp(p0, path, l) == 0 &&
1324 (l == 1 || path[l] == '/' || path[l] == 0)) {
1325 /* path match found. Check request */
1326 if (strcmp(p, request) == 0)
1328 /* unauthorized, but check next /path:user:password */
1335 return config->flg_deny_all;
1336 return prev == NULL;
1339 #else /* ifndef CONFIG_FEATURE_HTTPD_BASIC_AUTH */
1340 static int checkPermIP(const char *request)
1345 /* This could stand some work */
1346 for (cur = config->ip_a_d; cur; cur = cur->next) {
1347 p = cur->after_colon;
1349 if (config->debugHttpd)
1350 fprintf(stderr, "checkPerm: '%s' ? '%s'\n",
1351 (*p ? p : "*"), request);
1353 if(strncmp(p, request, strlen(p)) == 0)
1354 return *cur->before_colon == 'A'; /* Allow/Deny */
1357 /* if uncofigured, return 1 - access from all */
1358 return config->flg_deny_all;
1360 #define checkPerm(null, request) checkPermIP(request)
1361 #endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
1364 /****************************************************************************
1366 > $Function: handleIncoming()
1368 * $Description: Handle an incoming http request.
1370 ****************************************************************************/
1371 static void handleIncoming(void)
1373 char *buf = config->buf;
1378 #ifdef CONFIG_FEATURE_HTTPD_CGI
1379 const char *prequest = request_GET;
1388 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1389 int credentials = -1; /* if not requred this is Ok */
1395 if (getLine(buf) <= 0)
1398 purl = strpbrk(buf, " \t");
1401 sendHeaders(HTTP_BAD_REQUEST);
1405 #ifdef CONFIG_FEATURE_HTTPD_CGI
1406 if(strcasecmp(buf, prequest) != 0) {
1408 if(strcasecmp(buf, prequest) != 0) {
1409 sendHeaders(HTTP_NOT_IMPLEMENTED);
1414 if(strcasecmp(buf, request_GET) != 0) {
1415 sendHeaders(HTTP_NOT_IMPLEMENTED);
1420 count = sscanf(purl, " %[^ ] HTTP/%d.%*d", buf, &blank);
1422 decodeString(buf, 0);
1423 if (count < 1 || buf[0] != '/') {
1424 /* Garbled request/URL */
1427 url = alloca(strlen(buf) + 12); /* + sizeof("/index.html\0") */
1429 sendHeaders(HTTP_INTERNAL_SERVER_ERROR);
1433 /* extract url args if present */
1434 urlArgs = strchr(url, '?');
1438 /* algorithm stolen from libbb bb_simplify_path(),
1439 but don`t strdup and reducing trailing slash and protect out root */
1444 if (*test == '/') { /* skip duplicate (or initial) slash */
1446 } else if (*test == '.') {
1447 if (test[1] == '/' || test[1] == 0) { /* skip extra '.' */
1449 } else if ((test[1] == '.') && (test[2] == '/' || test[2] == 0)) {
1452 /* protect out root */
1455 while (*--purl != '/'); /* omit previous dir */
1463 *++purl = 0; /* so keep last character */
1464 test = purl; /* end ptr */
1466 /* If URL is directory, adding '/' */
1467 if(test[-1] != '/') {
1468 if ( is_directory(url + 1, 1, &sb) ) {
1471 purl = test; /* end ptr */
1475 if (config->debugHttpd)
1476 fprintf(stderr, "url='%s', args=%s\n", url, urlArgs);
1480 ip_allowed = checkPerm(NULL, config->rmt_ip);
1481 while(ip_allowed && (test = strchr( test + 1, '/' )) != NULL) {
1482 /* have path1/path2 */
1484 if( is_directory(url + 1, 1, &sb) ) {
1485 /* may be having subdir config */
1486 parse_conf(url + 1, SUBDIR_PARSE);
1487 ip_allowed = checkPerm(NULL, config->rmt_ip);
1492 // read until blank line for HTTP version specified, else parse immediate
1493 while (blank >= 0 && (count = getLine(buf)) > 0) {
1496 if (config->debugHttpd) fprintf(stderr, "Header: '%s'\n", buf);
1499 #ifdef CONFIG_FEATURE_HTTPD_CGI
1500 /* try and do our best to parse more lines */
1501 if ((strncasecmp(buf, Content_length, 15) == 0)) {
1502 if(prequest != request_GET)
1503 length = strtol(buf + 15, 0, 0); // extra read only for POST
1504 } else if ((strncasecmp(buf, "Cookie:", 7) == 0)) {
1505 for(test = buf + 7; isspace(*test); test++)
1507 cookie = strdup(test);
1511 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1512 if (strncasecmp(buf, "Authorization:", 14) == 0) {
1513 /* We only allow Basic credentials.
1514 * It shows up as "Authorization: Basic <userid:password>" where
1515 * the userid:password is base64 encoded.
1517 for(test = buf + 14; isspace(*test); test++)
1519 if (strncasecmp(test, "Basic", 5) != 0)
1522 test += 5; /* decodeBase64() skiping space self */
1524 credentials = checkPerm(url, test);
1526 #endif /* CONFIG_FEATURE_HTTPD_BASIC_AUTH */
1528 } /* while extra header reading */
1531 if (strcmp(strrchr(url, '/') + 1, httpd_conf) == 0 || ip_allowed == 0) {
1532 /* protect listing [/path]/httpd_conf or IP deny */
1533 #ifdef CONFIG_FEATURE_HTTPD_CGI
1534 FORBIDDEN: /* protect listing /cgi-bin */
1536 sendHeaders(HTTP_FORBIDDEN);
1540 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1541 if (credentials <= 0 && checkPerm(url, ":") == 0) {
1542 sendHeaders(HTTP_UNAUTHORIZED);
1547 test = url + 1; /* skip first '/' */
1549 #ifdef CONFIG_FEATURE_HTTPD_CGI
1550 /* if strange Content-Length */
1551 if (length < 0 || length > MAX_POST_SIZE)
1555 body = malloc(length + 1);
1557 length = bb_full_read(a_c_r, body, length);
1558 if(length < 0) // closed
1560 body[length] = 0; // always null terminate for safety
1564 if (strncmp(test, "cgi-bin", 7) == 0) {
1565 if(test[7] == '/' && test[8] == 0)
1566 goto FORBIDDEN; // protect listing cgi-bin/
1567 sendCgi(url, prequest, urlArgs, body, length, cookie);
1569 if (prequest != request_GET)
1570 sendHeaders(HTTP_NOT_IMPLEMENTED);
1572 #endif /* CONFIG_FEATURE_HTTPD_CGI */
1574 strcpy(purl, "index.html");
1575 if ( stat(test, &sb ) == 0 ) {
1576 config->ContentLength = sb.st_size;
1577 config->last_mod = sb.st_mtime;
1579 sendFile(test, buf);
1580 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1581 /* unset if non inetd looped */
1582 config->ContentLength = -1;
1585 #ifdef CONFIG_FEATURE_HTTPD_CGI
1593 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1594 /* from inetd don`t looping: freeing, closing automatic from exit always */
1596 if (config->debugHttpd) fprintf(stderr, "closing socket\n");
1598 # ifdef CONFIG_FEATURE_HTTPD_CGI
1602 shutdown(a_c_w, SHUT_WR);
1603 shutdown(a_c_r, SHUT_RD);
1604 close(config->accepted_socket);
1605 #endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
1608 /****************************************************************************
1610 > $Function: miniHttpd()
1612 * $Description: The main http server function.
1614 * Given an open socket fildes, listen for new connections and farm out
1615 * the processing as a forked process.
1618 * (int) server. . . The server socket fildes.
1620 * $Return: (int) . . . . Always 0.
1622 ****************************************************************************/
1623 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1624 static int miniHttpd(int server)
1626 fd_set readfd, portfd;
1629 FD_SET(server, &portfd);
1631 /* copy the ports we are watching to the readfd set */
1635 /* Now wait INDEFINATELY on the set of sockets! */
1636 if (select(server + 1, &readfd, 0, 0, 0) > 0) {
1637 if (FD_ISSET(server, &readfd)) {
1639 struct sockaddr_in fromAddr;
1642 socklen_t fromAddrLen = sizeof(fromAddr);
1643 int s = accept(server,
1644 (struct sockaddr *)&fromAddr, &fromAddrLen);
1649 config->accepted_socket = s;
1650 addr = ntohl(fromAddr.sin_addr.s_addr);
1651 sprintf(config->rmt_ip, "%u.%u.%u.%u",
1652 (unsigned char)(addr >> 24),
1653 (unsigned char)(addr >> 16),
1654 (unsigned char)(addr >> 8),
1656 config->port = ntohs(fromAddr.sin_port);
1658 if (config->debugHttpd) {
1659 bb_error_msg("connection from IP=%s, port %u\n",
1660 config->rmt_ip, config->port);
1663 /* set the KEEPALIVE option to cull dead connections */
1665 setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof (on));
1667 if (config->debugHttpd || fork() == 0) {
1668 /* This is the spawned thread */
1669 #ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
1670 /* protect reload config, may be confuse checking */
1671 signal(SIGHUP, SIG_IGN);
1674 if(!config->debugHttpd)
1679 return 0; // exit after processing one request
1690 static int miniHttpd(void)
1692 struct sockaddr_in fromAddrLen;
1693 socklen_t sinlen = sizeof (struct sockaddr_in);
1696 getpeername (0, (struct sockaddr *)&fromAddrLen, &sinlen);
1697 addr = ntohl(fromAddrLen.sin_addr.s_addr);
1698 sprintf(config->rmt_ip, "%u.%u.%u.%u",
1699 (unsigned char)(addr >> 24),
1700 (unsigned char)(addr >> 16),
1701 (unsigned char)(addr >> 8),
1703 config->port = ntohs(fromAddrLen.sin_port);
1707 #endif /* CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY */
1709 #ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
1710 static void sighup_handler(int sig)
1713 struct sigaction sa;
1715 sa.sa_handler = sighup_handler;
1716 sigemptyset(&sa.sa_mask);
1717 sa.sa_flags = SA_RESTART;
1718 sigaction(SIGHUP, &sa, NULL);
1719 parse_conf(default_path_httpd_conf,
1720 sig == SIGHUP ? SIGNALED_PARSE : FIRST_PARSE);
1724 #ifdef HTTPD_STANDALONE
1725 int main(int argc, char *argv[])
1727 int httpd_main(int argc, char *argv[])
1730 const char *home_httpd = home;
1732 const char *testArgs[5];
1736 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1740 #ifdef CONFIG_FEATURE_HTTPD_SETUID
1744 config = xcalloc(1, sizeof(*config));
1745 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1746 config->realm = "Web Server Authentication";
1749 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1753 config->ContentLength = -1;
1755 /* check if user supplied a port number */
1757 int c = getopt( argc, argv, "c:d:h:"
1758 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1761 #ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
1764 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1767 #ifdef CONFIG_FEATURE_HTTPD_SETUID
1774 if (c == EOF) break;
1777 config->configFile = optarg;
1780 home_httpd = optarg;
1782 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1784 config->debugHttpd = 1;
1787 config->port = bb_xgetlarg(optarg, 10, 1, 0xffff);
1791 printf("%s", decodeString(optarg, 1));
1793 #ifdef CONFIG_FEATURE_HTTPD_ENCODE_URL_STR
1795 printf("%s", encodeString(optarg));
1798 #ifdef CONFIG_FEATURE_HTTPD_BASIC_AUTH
1800 config->realm = optarg;
1803 #ifdef CONFIG_FEATURE_HTTPD_SETUID
1808 uid = strtol(optarg, &e, 0);
1811 uid = my_getpwnam(optarg);
1818 testArgs[numTestArgs++]=optarg;
1822 bb_error_msg("%s", httpdVersion);
1827 if(chdir(home_httpd)) {
1828 bb_perror_msg_and_die("can`t chdir to %s", home_httpd);
1830 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1831 server = openServer();
1832 # ifdef CONFIG_FEATURE_HTTPD_SETUID
1833 /* drop privilegies */
1837 # ifdef CONFIG_FEATURE_HTTPD_CGI
1838 addEnvPort("SERVER");
1842 #ifdef CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP
1845 parse_conf(default_path_httpd_conf, FIRST_PARSE);
1852 if (strcmp(testArgs[0], "ip") == 0) testArgs[0] = 0;
1853 if (numTestArgs > 2)
1854 parse_conf(testArgs[2], SUBDIR_PARSE);
1855 result = printf("%d\n", checkPerm(testArgs[0], testArgs[1]));
1860 #ifndef CONFIG_FEATURE_HTTPD_USAGE_FROM_INETD_ONLY
1861 if (!config->debugHttpd) {
1862 if (daemon(1, 0) < 0) /* don`t change curent directory */
1863 bb_perror_msg_and_die("daemon");
1865 return miniHttpd(server);