httpd shrink and logging update, part 6 of 7
text data bss dec hex filename 9836 0 0 9836 266c busybox.t1/networking/httpd.o.orig 9724 0 0 9724 25fc busybox.t2/networking/httpd.o 9657 0 0 9657 25b9 busybox.t3/networking/httpd.o 9342 0 0 9342 247e busybox.t4/networking/httpd.o 9342 0 0 9342 247e busybox.t5/networking/httpd.o 9262 0 0 9262 242e busybox.t6/networking/httpd.o 9283 0 0 9283 2443 busybox.t7/networking/httpd.o 9334 0 0 9334 2476 busybox.t8/networking/httpd.o
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073214f894
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@ -299,7 +299,7 @@ static int scan_ip(const char **ep, unsigned *ip, unsigned char endc)
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for (j = 0; j < 4; j++) {
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unsigned octet;
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if ((*p < '0' || *p > '9') && (*p != '/' || j == 0) && *p != 0)
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if ((*p < '0' || *p > '9') && (*p != '/' || j == 0) && *p != '\0')
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return -auto_mask;
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octet = 0;
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while (*p >= '0' && *p <= '9') {
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@ -311,15 +311,15 @@ static int scan_ip(const char **ep, unsigned *ip, unsigned char endc)
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}
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if (*p == '.')
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p++;
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if (*p != '/' && *p != 0)
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if (*p != '/' && *p != '\0')
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auto_mask += 8;
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*ip = ((*ip) << 8) | octet;
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}
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if (*p != 0) {
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if (*p != '\0') {
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if (*p != endc)
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return -auto_mask;
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p++;
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if (*p == 0)
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if (*p == '\0')
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return -auto_mask;
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}
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*ep = p;
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@ -781,6 +781,17 @@ static int openServer(void)
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}
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#endif
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/*
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* Log the connection closure and exit.
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*/
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static void log_and_exit(void) ATTRIBUTE_NORETURN;
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static void log_and_exit(void)
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{
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if (verbose > 2)
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bb_error_msg("closed");
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_exit(xfunc_error_retval);
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}
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/*
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* Create and send HTTP response headers.
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* The arguments are combined and sent as one write operation. Note that
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@ -789,7 +800,7 @@ static int openServer(void)
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* responseNum - the result code to send.
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* Return result of write().
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*/
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static int sendHeaders(HttpResponseNum responseNum)
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static void send_headers(HttpResponseNum responseNum)
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{
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static const char RFC1123FMT[] ALIGN1 = "%a, %d %b %Y %H:%M:%S GMT";
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@ -841,8 +852,8 @@ static int sendHeaders(HttpResponseNum responseNum)
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len += sprintf(iobuf + len, "Last-Modified: %s\r\n%s %"OFF_FMT"d\r\n",
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tmp_str, "Content-length:", ContentLength);
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}
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strcat(iobuf, "\r\n");
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len += 2;
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iobuf[len++] = '\r';
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iobuf[len++] = '\n';
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if (infoString) {
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len += sprintf(iobuf + len,
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"<HTML><HEAD><TITLE>%d %s</TITLE></HEAD>\n"
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@ -855,14 +866,18 @@ static int sendHeaders(HttpResponseNum responseNum)
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i = accepted_socket;
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if (i == 0)
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i++; /* write to fd #1 in inetd mode */
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return full_write(i, iobuf, len);
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if (full_write(i, iobuf, len) != len) {
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if (verbose > 1)
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bb_perror_msg("error");
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log_and_exit();
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}
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}
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static void send_headers_and_exit(HttpResponseNum responseNum) ATTRIBUTE_NORETURN;
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static void send_headers_and_exit(HttpResponseNum responseNum)
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{
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sendHeaders(responseNum);
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_exit(0);
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send_headers(responseNum);
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log_and_exit();
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}
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/*
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@ -945,8 +960,10 @@ static void send_cgi_and_exit(
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#else
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pid = fork();
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#endif
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if (pid < 0)
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_exit(0);
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if (pid < 0) {
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/* TODO: log perror? */
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log_and_exit();
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}
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if (!pid) {
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/* child process */
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@ -1054,9 +1071,6 @@ static void send_cgi_and_exit(
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*script = '\0';
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/* chdiring to script's dir */
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if (chdir(fullpath) == 0) {
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/* Now run the program. If it fails,
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* use _exit() so no destructors
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* get called and make a mess. */
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#if ENABLE_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR
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char *interpr = NULL;
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char *suffix = strrchr(purl, '.');
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@ -1083,8 +1097,7 @@ static void send_cgi_and_exit(
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/* send to stdout
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* (we are CGI here, our stdout is pumped to the net) */
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accepted_socket = 1;
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sendHeaders(HTTP_NOT_FOUND);
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_exit(242);
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send_headers_and_exit(HTTP_NOT_FOUND);
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} /* end child */
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/* parent process */
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@ -1248,7 +1261,7 @@ static void send_cgi_and_exit(
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fprintf(stderr, "cgi read %d bytes: '%.*s'\n", count, count, rbuf);
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} /* if (FD_ISSET(fromCgi.rd)) */
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} /* while (1) */
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_exit(0);
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log_and_exit();
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}
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#endif /* FEATURE_HTTPD_CGI */
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@ -1329,14 +1342,14 @@ static void send_file_and_exit(const char *url)
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send_headers_and_exit(HTTP_NOT_FOUND);
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}
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sendHeaders(HTTP_OK);
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send_headers(HTTP_OK);
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fd = accepted_socket;
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if (fd == 0)
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fd++; /* write to fd #1 in inetd mode */
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/* If you want to know about EPIPE below
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* (happens if you abort downloads from local httpd): */
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/* signal(SIGPIPE, SIG_IGN); */
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signal(SIGPIPE, SIG_IGN);
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#if ENABLE_FEATURE_HTTPD_USE_SENDFILE
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do {
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@ -1348,7 +1361,7 @@ static void send_file_and_exit(const char *url)
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goto fin;
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}
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} while (count > 0);
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_exit(0);
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log_and_exit();
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fallback:
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#endif
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@ -1363,12 +1376,12 @@ static void send_file_and_exit(const char *url)
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#endif
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if (count < 0 && verbose > 1)
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bb_perror_msg("error");
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_exit(0);
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log_and_exit();
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}
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static int checkPermIP(void)
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{
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Htaccess_IP * cur;
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Htaccess_IP *cur;
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/* This could stand some work */
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for (cur = ip_a_d; cur; cur = cur->next) {
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@ -1517,8 +1530,10 @@ static void handle_incoming_and_exit(void)
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sigaction(SIGALRM, &sa, NULL);
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alarm(HEADER_READ_TIMEOUT);
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if (!get_line())
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_exit(0); /* EOF or error or empty line */
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if (!get_line()) {
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/* EOF or error or empty line */
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send_headers_and_exit(HTTP_BAD_REQUEST);
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}
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/* Determine type of request (GET/POST) */
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purl = strpbrk(iobuf, " \t");
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@ -1644,7 +1659,7 @@ static void handle_incoming_and_exit(void)
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if (prequest != request_GET) {
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test = iobuf + sizeof("Content-length:") - 1;
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if (!test[0])
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_exit(0);
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send_headers_and_exit(HTTP_BAD_REQUEST);
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errno = 0;
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/* not using strtoul: it ignores leading minus! */
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length = strtol(test, &test, 10);
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@ -1652,7 +1667,7 @@ static void handle_incoming_and_exit(void)
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/* so we check for negative or too large values in one go: */
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/* (long -> ulong conv caused negatives to be seen as > INT_MAX) */
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if (test[0] || errno || length > INT_MAX)
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_exit(0);
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send_headers_and_exit(HTTP_BAD_REQUEST);
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}
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} else if (STRNCASECMP(iobuf, "Cookie:") == 0) {
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cookie = strdup(skip_whitespace(iobuf + sizeof("Cookie:")-1));
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@ -1682,7 +1697,7 @@ static void handle_incoming_and_exit(void)
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} /* while extra header reading */
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}
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/* We read everything, disable peer timeout */
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/* We read headers, disable peer timeout */
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alarm(0);
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if (strcmp(bb_basename(url), httpd_conf) == 0 || ip_allowed == 0) {
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@ -1779,7 +1794,7 @@ static void handle_incoming_and_exit(void)
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} while (retval > 0 && read(accepted_socket, iobuf, sizeof(iobuf) > 0));
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shutdown(accepted_socket, SHUT_RD);
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close(accepted_socket);
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_exit(0);
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log_and_exit();
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#endif
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}
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@ -2003,12 +2018,14 @@ int httpd_main(int argc, char **argv)
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#else
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parse_conf(default_path_httpd_conf, FIRST_PARSE);
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#endif
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xfunc_error_retval = 0;
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if (opt & OPT_INETD)
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mini_httpd_inetd();
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if (!(opt & OPT_FOREGROUND))
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bb_daemonize(0); /* don't change current directory */
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mini_httpd(server_socket); /* never returns */
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#else
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xfunc_error_retval = 0;
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mini_httpd_inetd(); /* never returns */
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/* return 0; */
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#endif
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