* server changes directory to the location of the script and executes it
* after setting QUERY_STRING and other environment variables.
*
+ * Doc:
+ * "CGI Environment Variables": http://hoohoo.ncsa.uiuc.edu/cgi/env.html
+ *
* 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"
*
*/
-
#include "busybox.h"
+/* amount of buffering in a pipe */
+#ifndef PIPE_BUF
+# define PIPE_BUF 4096
+#endif
static const char httpdVersion[] = "busybox httpd/1.35 6-Oct-2004";
static const char default_path_httpd_conf[] = "/etc";
// is checked rigorously
//#define DEBUG 1
-
-#ifndef DEBUG
-# define DEBUG 0
-#endif
+#define DEBUG 0
#define MAX_MEMORY_BUFF 8192 /* IO buffer */
unsigned int rmt_ip;
#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
- char rmt_ip_str[16]; /* for set env REMOTE_ADDR */
+ char *rmt_ip_str; /* for set env REMOTE_ADDR */
#endif
unsigned port; /* server initial port and for
set env REMOTE_PORT */
return 0;
}
-#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH \
+ || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES \
+ || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
static void free_config_lines(Htaccess **pprev)
{
Htaccess *prev = *pprev;
{
FILE *f;
#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
- Htaccess *prev, *cur;
-#elif ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES
+ Htaccess *prev;
+#endif
+#if ENABLE_FEATURE_HTTPD_BASIC_AUTH \
+ || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES \
+ || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
Htaccess *cur;
#endif
config->flg_deny_all = 0;
-#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+#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
continue;
if (*p0 == 'A' || *p0 == 'D') {
/* storing current config IP line */
- pip = calloc(1, sizeof(Htaccess_IP));
+ pip = xzalloc(sizeof(Htaccess_IP));
if (pip) {
if (scan_ip_mask(c, &(pip->ip), &(pip->mask))) {
/* syntax IP{/mask} error detected, protect all */
}
#endif
-#if ENABLE_FEATURE_HTTPD_BASIC_AUTH || ENABLE_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES || ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+#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));
+ cur = xzalloc(sizeof(Htaccess) + strlen(p0));
if (cur) {
cf = strcpy(cur->before_colon, p0);
c = strchr(cf, ':');
/* 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 *out = xmalloc(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;
+ *p = '\0';
return out;
}
#endif /* FEATURE_HTTPD_ENCODE_URL_STR */
*
* $Parameters:
* (char *) string . . . The first string to decode.
- * (int) flag . . . 1 if require decode '+' as ' ' for CGI
+ * (int) option_d . . 1 if called for httpd -d
*
* $Return: (char *) . . . . A pointer to the decoded string (same as input).
*
* $Errors: None
*
****************************************************************************/
-static char *decodeString(char *orig, int flag_plus_to_space)
+static char *decodeString(char *orig, int option_d)
{
/* note that decoded string is always shorter than original */
char *string = orig;
char *ptr = string;
+ char c;
- 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;
- }
+ while ((c = *ptr++) != '\0') {
+ unsigned value1, value2;
+
+ if (option_d && c == '+') {
+ *string++ = ' ';
+ continue;
}
+ if (c != '%') {
+ *string++ = c;
+ continue;
+ }
+ if (sscanf(ptr, "%1X", &value1) != 1
+ || sscanf(ptr+1, "%1X", &value2) != 1
+ ) {
+ if (!option_d)
+ return NULL;
+ *string++ = '%';
+ continue;
+ }
+ value1 = value1 * 16 + value2;
+ if (!option_d && (value1 == '/' || value1 == '\0')) {
+ /* caller takes it as indication of invalid
+ * (dangerous wrt exploits) chars */
+ return orig + 1;
+ }
+ *string++ = value1;
+ ptr += 2;
}
*string = '\0';
return orig;
****************************************************************************/
static int openServer(void)
{
- 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));
-#else
- setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&on, sizeof(on));
-#endif
- xbind(fd, (struct sockaddr *)&lsocket, sizeof(lsocket));
+ fd = create_and_bind_stream_or_die(NULL, config->port);
xlisten(fd, 9);
- signal(SIGCHLD, SIG_IGN); /* prevent zombie (defunct) processes */
return fd;
}
const char *responseString = "";
const char *infoString = 0;
const char *mime_type;
- unsigned int i;
+ unsigned i;
time_t timer = time(0);
char timeStr[80];
int len;
/* 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",
+ "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);
+ len += sprintf(buf+len,
+ "WWW-Authenticate: Basic realm=\"%s\"\r\n",
+ config->realm);
}
#endif
if (responseNum == HTTP_MOVED_TEMPORARILY) {
if (config->ContentLength != -1) { /* file */
strftime(timeStr, sizeof(timeStr), RFC1123FMT, gmtime(&config->last_mod));
- len += sprintf(buf+len, "Last-Modified: %s\r\n%s %"OFF_FMT"\r\n",
- timeStr, "Content-length:", (off_t) config->ContentLength);
+ len += sprintf(buf+len, "Last-Modified: %s\r\n%s %"OFF_FMT"d\r\n",
+ timeStr, "Content-length:", config->ContentLength);
}
strcat(buf, "\r\n");
len += 2;
}
if (DEBUG)
fprintf(stderr, "headers: '%s'\n", buf);
- return full_write(config->accepted_socket, buf, len);
+ i = config->accepted_socket;
+ if (i == 0) i++; /* write to fd# 1 in inetd mode */
+ return full_write(i, buf, len);
}
/****************************************************************************
* (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).
*
int pid = 0;
int inFd;
int outFd;
- int firstLine = 1;
+ int buf_count;
int status;
- size_t post_readed_size, post_readed_idx;
+ size_t post_read_size, post_read_idx;
if (pipe(fromCgi) != 0)
return 0;
if (pipe(toCgi) != 0)
return 0;
+/*
+ * Note: We can use vfork() here in the no-mmu case, although
+ * the child modifies the parent's variables, due to:
+ * 1) The parent does not use the child-modified variables.
+ * 2) The allocated memory (in the child) is freed when the process
+ * exits. This happens instantly after the child finishes,
+ * since httpd is run from inetd (and it can't run standalone
+ * in uClinux).
+ */
+#ifdef BB_NOMMU
+ pid = vfork();
+#else
pid = fork();
+#endif
if (pid < 0)
return 0;
-
+
if (!pid) {
/* child process */
char *script;
- char *purl = strdup(url);
+ char *purl;
char realpath_buff[MAXPATHLEN];
- if (purl == NULL)
- _exit(242);
+ if (config->accepted_socket > 1)
+ close(config->accepted_socket);
+ if (config->server_socket > 1)
+ close(config->server_socket);
- inFd = toCgi[0];
- outFd = fromCgi[1];
-
- dup2(inFd, 0); // replace stdin with the pipe
- dup2(outFd, 1); // replace stdout with the pipe
+ dup2(toCgi[0], 0); // replace stdin with the pipe
+ dup2(fromCgi[1], 1); // replace stdout with the pipe
+ /* Huh? User seeing stderr can be a security problem...
+ * and if CGI really wants that, it can always dup2(1,2)...
if (!DEBUG)
- dup2(outFd, 2); // replace stderr with the pipe
-
+ dup2(fromCgi[1], 2); // replace stderr with the pipe
+ */
+ /* I think we cannot inadvertently close 0, 1 here... */
close(toCgi[0]);
close(toCgi[1]);
close(fromCgi[0]);
close(fromCgi[1]);
- close(config->accepted_socket);
- close(config->server_socket);
-
/*
* Find PATH_INFO.
*/
+ xfunc_error_retval = 242;
+ purl = xstrdup(url);
script = purl;
while ((script = strchr(script + 1, '/')) != NULL) {
/* have script.cgi/PATH_INFO or dirs/script.cgi[/PATH_INFO] */
setenv1("SCRIPT_FILENAME", realpath_buff);
/* set SCRIPT_NAME as full path: /cgi-bin/dirs/script.cgi */
setenv1("SCRIPT_NAME", purl);
+ /* http://hoohoo.ncsa.uiuc.edu/cgi/env.html:
+ * QUERY_STRING: The information which follows the ? in the URL
+ * which referenced this script. This is the query information.
+ * It should not be decoded in any fashion. This variable
+ * should always be set when there is query information,
+ * regardless of command line decoding. */
+ /* (Older versions of bbox seem to do some decoding) */
setenv1("QUERY_STRING", config->query);
setenv1("SERVER_SOFTWARE", httpdVersion);
- putenv("SERVER_PROTOCOL=HTTP/1.0");
- putenv("GATEWAY_INTERFACE=CGI/1.1");
- setenv1("REMOTE_ADDR", config->rmt_ip_str);
+ putenv((char*)"SERVER_PROTOCOL=HTTP/1.0");
+ putenv((char*)"GATEWAY_INTERFACE=CGI/1.1");
+ /* Having _separate_ variables for IP and port defeats
+ * the purpose of having socket abstraction. Which "port"
+ * are you using on Unix domain socket?
+ * IOW - REMOTE_PEER="1.2.3.4:56" makes much more sense.
+ * Oh well... */
+ {
+ char *p = config->rmt_ip_str ? : (char*)"";
+ char *cp = strrchr(p, ':');
+ if (ENABLE_FEATURE_IPV6 && cp && strchr(cp, ']'))
+ cp = NULL;
+ if (cp) *cp = '\0'; /* delete :PORT */
+ setenv1("REMOTE_ADDR", p);
+ }
#if ENABLE_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV
setenv_long("REMOTE_PORT", config->port);
#endif
#if ENABLE_FEATURE_HTTPD_BASIC_AUTH
if (config->remoteuser) {
setenv1("REMOTE_USER", config->remoteuser);
- putenv("AUTH_TYPE=Basic");
+ putenv((char*)"AUTH_TYPE=Basic");
}
#endif
if (config->referer)
goto error_execing_cgi;
*script = '\0';
if (chdir(realpath_buff) == 0) {
- // now run the program. If it fails,
+ // 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
/* parent process */
- post_readed_size = 0;
- post_readed_idx = 0;
+ buf_count = 0;
+ post_read_size = 0;
+ post_read_idx = 0; /* for gcc */
inFd = fromCgi[0];
outFd = toCgi[1];
close(fromCgi[1]);
FD_ZERO(&readSet);
FD_ZERO(&writeSet);
FD_SET(inFd, &readSet);
- if (bodyLen > 0 || post_readed_size > 0) {
+ if (bodyLen > 0 || post_read_size > 0) {
FD_SET(outFd, &writeSet);
nfound = outFd > inFd ? outFd : inFd;
- if (post_readed_size == 0) {
+ if (post_read_size == 0) {
FD_SET(config->accepted_socket, &readSet);
if (nfound < config->accepted_socket)
nfound = config->accepted_socket;
}
/* Now wait on the set of sockets! */
- nfound = select(nfound + 1, &readSet, &writeSet, 0, NULL);
+ nfound = select(nfound + 1, &readSet, &writeSet, NULL, NULL);
} else {
if (!bodyLen) {
- close(outFd);
+ close(outFd); /* no more POST data to CGI */
bodyLen = -1;
}
- nfound = select(inFd + 1, &readSet, 0, 0, NULL);
+ nfound = select(inFd + 1, &readSet, NULL, NULL, NULL);
}
if (nfound <= 0) {
- if (waitpid(pid, &status, WNOHANG) > 0) {
- close(inFd);
- if (DEBUG && WIFEXITED(status))
- bb_error_msg("piped has exited with status=%d", WEXITSTATUS(status));
- if (DEBUG && WIFSIGNALED(status))
- bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
- break;
+ if (waitpid(pid, &status, WNOHANG) <= 0) {
+ /* Weird. CGI didn't exit and no fd's
+ * are ready, yet select returned?! */
+ continue;
}
- } else if (post_readed_size > 0 && FD_ISSET(outFd, &writeSet)) {
- count = full_write(outFd, wbuf + post_readed_idx, post_readed_size);
+ close(inFd);
+ if (DEBUG && WIFEXITED(status))
+ bb_error_msg("piped has exited with status=%d", WEXITSTATUS(status));
+ if (DEBUG && WIFSIGNALED(status))
+ bb_error_msg("piped has exited with signal=%d", WTERMSIG(status));
+ break;
+ }
+
+ if (post_read_size > 0 && FD_ISSET(outFd, &writeSet)) {
+ /* Have data from peer and can write to CGI */
+ // huh? why full_write? what if we will block?
+ // (imagine that CGI does not read its stdin...)
+ count = full_write(outFd, wbuf + post_read_idx, post_read_size);
if (count > 0) {
- post_readed_size -= count;
- post_readed_idx += count;
- if (post_readed_size == 0)
- post_readed_idx = 0;
+ post_read_idx += count;
+ post_read_size -= count;
} else {
- post_readed_size = post_readed_idx = bodyLen = 0; /* broken pipe to CGI */
+ post_read_size = bodyLen = 0; /* broken pipe to CGI */
}
- } else if (bodyLen > 0 && post_readed_size == 0 && FD_ISSET(config->accepted_socket, &readSet)) {
+ } else if (bodyLen > 0 && post_read_size == 0
+ && FD_ISSET(config->accepted_socket, &readSet)
+ ) {
+ /* We expect data, prev data portion is eaten by CGI
+ * and there *is* data to read from the peer
+ * (POSTDATA?) */
count = bodyLen > (int)sizeof(wbuf) ? (int)sizeof(wbuf) : bodyLen;
count = safe_read(config->accepted_socket, wbuf, count);
if (count > 0) {
- post_readed_size += count;
+ post_read_size = count;
+ post_read_idx = 0;
bodyLen -= count;
} else {
bodyLen = 0; /* closed */
}
}
- if (FD_ISSET(inFd, &readSet)) {
- int s = config->accepted_socket;
- char *rbuf = config->buf;
-#ifndef PIPE_BUF
-# define PIPESIZE 4096 /* amount of buffering in a pipe */
-#else
-# define PIPESIZE PIPE_BUF
-#endif
+#define PIPESIZE PIPE_BUF
#if PIPESIZE >= MAX_MEMORY_BUFF
# error "PIPESIZE >= MAX_MEMORY_BUFF"
#endif
+ if (FD_ISSET(inFd, &readSet)) {
+ /* There is something to read from CGI */
+ int s = config->accepted_socket;
+ char *rbuf = config->buf;
- /* 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);
+ /* Are we still buffering CGI output? */
+ if (buf_count >= 0) {
+ static const char HTTP_200[] = "HTTP/1.0 200 OK\r\n";
+ /* Must use safe_read, not full_read, because
+ * CGI may output a few first bytes and then wait
+ * for POSTDATA without closing stdout.
+ * With full_read we may wait here forever. */
+ count = safe_read(inFd, rbuf + buf_count, PIPESIZE - 4);
+ if (count <= 0) {
+ /* eof (or error) and there was no "HTTP",
+ * so add one and write out the received data */
+ if (buf_count) {
+ full_write(s, HTTP_200, sizeof(HTTP_200)-1);
+ full_write(s, rbuf, buf_count);
+ }
+ break; /* closed */
+ }
+ buf_count += count;
+ count = 0;
+ if (buf_count >= 4) {
+ /* check to see if CGI added "HTTP" */
+ if (memcmp(rbuf, HTTP_200, 4) != 0) {
+ /* there is no "HTTP", do it ourself */
+ if (full_write(s, HTTP_200, sizeof(HTTP_200)-1) != sizeof(HTTP_200)-1)
+ break;
}
- /* Sometimes CGI is writing to pipe in small chunks
- * and we don't see Content-type (because the read
- * is too short) and we emit bogus "text/plain"!
- * Is it a bug or CGI *has to* write it in one piece? */
- if (strstr(rbuf, "ontent-") == 0) {
+ /* example of valid CGI without "Content-type:"
+ * echo -en "HTTP/1.0 302 Found\r\n"
+ * echo -en "Location: http://www.busybox.net\r\n"
+ * echo -en "\r\n"
+ if (!strstr(rbuf, "ontent-")) {
full_write(s, "Content-type: text/plain\r\n\r\n", 28);
}
- firstLine = 0;
+ */
+ count = buf_count;
+ buf_count = -1; /* buffering off */
}
- if (full_write(s, rbuf, count) != count)
- break;
-
- if (DEBUG)
- fprintf(stderr, "cgi read %d bytes: '%.*s'\n", count, count, rbuf);
+ } else {
+ count = safe_read(inFd, rbuf, PIPESIZE);
+ if (count <= 0)
+ break; /* eof (or error) */
}
- }
- }
+ if (full_write(s, rbuf, count) != count)
+ break;
+ if (DEBUG)
+ fprintf(stderr, "cgi read %d bytes: '%.*s'\n", count, count, rbuf);
+ } /* if (FD_ISSET(inFd)) */
+ } /* while (1) */
return 0;
}
#endif /* FEATURE_HTTPD_CGI */
sendHeaders(HTTP_OK);
/* TODO: sendfile() */
while ((count = full_read(f, buf, MAX_MEMORY_BUFF)) > 0) {
- if (full_write(config->accepted_socket, buf, count) != count)
+ int fd = config->accepted_socket;
+ if (fd == 0) fd++; /* write to fd# 1 in inetd mode */
+ if (full_write(fd, buf, count) != count)
break;
}
close(f);
/* 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);
- if (DEBUG)
- 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);
+#if ENABLE_FEATURE_HTTPD_CGI && DEBUG
+ fprintf(stderr, "checkPermIP: '%s' ? ", config->rmt_ip_str);
+#endif
+#if DEBUG
+ 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),
+ (unsigned char)(cur->ip),
+ (unsigned char)(cur->mask >> 24),
+ (unsigned char)(cur->mask >> 16),
+ (unsigned char)(cur->mask >> 8),
+ (unsigned char)(cur->mask)
+ );
+#endif
if ((config->rmt_ip & cur->mask) == cur->ip)
return cur->allow_deny == 'A'; /* Allow/Deny */
}
test = decodeString(url, 0);
if (test == NULL)
goto BAD_REQUEST;
- /* FIXME: bug? should be "url+1"? */
- if (test == (buf+1)) {
+ if (test == url+1) {
+ /* '/' or NUL is encoded */
sendHeaders(HTTP_NOT_FOUND);
break;
}
/* extra read only for POST */
if (prequest != request_GET) {
test = buf + sizeof("Content-length:")-1;
- if (!test[0]) goto bail_out;
+ if (!test[0])
+ goto bail_out;
errno = 0;
/* not using strtoul: it ignores leading munis! */
length = strtol(test, &test, 10);
sendCgi(url, prequest, length, cookie, content_type);
break;
}
+#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
+ {
+ char *suffix = strrchr(test, '.');
+ if (suffix) {
+ Htaccess *cur;
+ for (cur = config->script_i; cur; cur = cur->next) {
+ if (strcmp(cur->before_colon + 1, suffix) == 0) {
+ sendCgi(url, prequest, length, cookie, content_type);
+ goto bail_out;
+ }
+ }
+ }
+ }
+#endif
if (prequest != request_GET) {
sendHeaders(HTTP_NOT_IMPLEMENTED);
break;
config->ContentLength = -1;
} while (0);
+#if ENABLE_FEATURE_HTTPD_CGI
bail_out:
+#endif
if (DEBUG)
fprintf(stderr, "closing socket\n\n");
/* copy the ports we are watching to the readfd set */
while (1) {
- int on, s;
- socklen_t fromAddrLen;
- struct sockaddr_in fromAddr;
+ int s;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+ USE_FEATURE_IPV6(struct sockaddr_in6 sin6;)
+ } fromAddr;
+ socklen_t fromAddrLen = sizeof(fromAddr);
/* Now wait INDEFINITELY on the set of sockets! */
readfd = portfd;
continue;
if (!FD_ISSET(server, &readfd))
continue;
- fromAddrLen = sizeof(fromAddr);
- s = accept(server, (struct sockaddr *)&fromAddr, &fromAddrLen);
+ s = accept(server, &fromAddr.sa, &fromAddrLen);
if (s < 0)
continue;
config->accepted_socket = s;
- config->rmt_ip = ntohl(fromAddr.sin_addr.s_addr);
+ config->rmt_ip = 0;
+ config->port = 0;
#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);
+ free(config->rmt_ip_str);
+ config->rmt_ip_str = xmalloc_sockaddr2dotted(&fromAddr.sa, fromAddrLen);
#if DEBUG
- bb_error_msg("connection from IP=%s, port %u",
- config->rmt_ip_str, config->port);
+ bb_error_msg("connection from '%s'", config->rmt_ip_str);
#endif
#endif /* FEATURE_HTTPD_CGI */
+ if (fromAddr.sa.sa_family == AF_INET) {
+ config->rmt_ip = ntohl(fromAddr.sin.sin_addr.s_addr);
+ config->port = ntohs(fromAddr.sin.sin_port);
+ }
+#if ENABLE_FEATURE_IPV6
+ if (fromAddr.sa.sa_family == AF_INET6) {
+ //config->rmt_ip = ntohl(fromAddr.sin.sin_addr.s_addr);
+ config->port = ntohs(fromAddr.sin6.sin6_port);
+ }
+#endif
/* set the KEEPALIVE option to cull dead connections */
- on = 1;
- setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, (void *)&on, sizeof(on));
+ setsockopt(s, SOL_SOCKET, SO_KEEPALIVE, &const_int_1, sizeof(const_int_1));
if (DEBUG || fork() == 0) {
/* child */
/* from inetd */
static int miniHttpd_inetd(void)
{
- 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);
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+ USE_FEATURE_IPV6(struct sockaddr_in6 sin6;)
+ } fromAddr;
+ socklen_t fromAddrLen = sizeof(fromAddr);
+
+ getpeername(0, &fromAddr.sa, &fromAddrLen);
+ config->rmt_ip = 0;
+ config->port = 0;
+#if ENABLE_FEATURE_HTTPD_CGI || DEBUG
+ free(config->rmt_ip_str);
+ config->rmt_ip_str = xmalloc_sockaddr2dotted(&fromAddr.sa, fromAddrLen);
+#endif
+ if (fromAddr.sa.sa_family == AF_INET) {
+ config->rmt_ip = ntohl(fromAddr.sin.sin_addr.s_addr);
+ config->port = ntohs(fromAddr.sin.sin_port);
+ }
+#if ENABLE_FEATURE_IPV6
+ if (fromAddr.sa.sa_family == AF_INET6) {
+ //config->rmt_ip = ntohl(fromAddr.sin.sin_addr.s_addr);
+ config->port = ntohs(fromAddr.sin6.sin6_port);
+ }
#endif
- config->port = ntohs(fromAddrLen.sin_port);
handleIncoming();
return 0;
}
"p:if";
+int httpd_main(int argc, char *argv[]);
int httpd_main(int argc, char *argv[])
{
unsigned opt;
#if ENABLE_FEATURE_HTTPD_SETUID
if (opt & OPT_SETUID) {
- char *e;
- // FIXME: what the default group should be?
- ugid.gid = -1;
- ugid.uid = strtoul(s_ugid, &e, 0);
- if (*e == ':') {
- e++;
- ugid.gid = strtoul(e, &e, 0);
- }
- if (*e != '\0') {
- /* not integer */
- if (!uidgid_get(&ugid, s_ugid))
- bb_error_msg_and_die("unrecognized user[:group] "
+ if (!get_uidgid(&ugid, s_ugid, 1))
+ bb_error_msg_and_die("unrecognized user[:group] "
"name '%s'", s_ugid);
- }
}
#endif
xchdir(home_httpd);
if (!(opt & OPT_INETD)) {
+ signal(SIGCHLD, SIG_IGN);
config->server_socket = openServer();
#if ENABLE_FEATURE_HTTPD_SETUID
/* drop privileges */
if (opt & OPT_SETUID) {
if (ugid.gid != (gid_t)-1) {
if (setgroups(1, &ugid.gid) == -1)
- bb_perror_msg_and_die("setgroups");
+ bb_perror_msg_and_die("setgroups");
xsetgid(ugid.gid);
}
xsetuid(ugid.uid);
#if ENABLE_FEATURE_HTTPD_CGI
{
char *p = getenv("PATH");
- if (p) {
- p = xstrdup(p);
- }
+ p = xstrdup(p); /* if gets NULL, returns NULL */
clearenv();
if (p)
setenv1("PATH", p);
projects / oweals / busybox.git / blobdiff