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- /* ====================================================================
- * Copyright (c) 1995-1999 The Apache Group. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache"
- * nor may "Apache" appear in their names without prior written
- * permission of the Apache Group.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE GROUP OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
- #define CORE_PRIVATE
- #include "httpd.h"
- #include "http_config.h"
- #include "http_conf_globals.h"
- #include "http_main.h"
- #include "http_log.h"
- #include "http_protocol.h"
- #include "http_core.h" /* For document_root. Sigh... */
- #include "http_request.h" /* for sub_req_lookup_uri() */
- #include "util_script.h"
- #include "util_date.h" /* For parseHTTPdate() */
-
- /*
- * Various utility functions which are common to a whole lot of
- * script-type extensions mechanisms, and might as well be gathered
- * in one place (if only to avoid creating inter-module dependancies
- * where there don't have to be).
- */
-
- #define MALFORMED_MESSAGE "malformed header from script. Bad header="
- #define MALFORMED_HEADER_LENGTH_TO_SHOW 30
-
- /* If a request includes query info in the URL (stuff after "?"), and
- * the query info does not contain "=" (indicative of a FORM submission),
- * then this routine is called to create the argument list to be passed
- * to the CGI script. When suexec is enabled, the suexec path, user, and
- * group are the first three arguments to be passed; if not, all three
- * must be NULL. The query info is split into separate arguments, where
- * "+" is the separator between keyword arguments.
- *
- * XXXX: note that the WIN32 code uses one of the suexec strings
- * to pass an interpreter name. Remember this if changing the way they
- * are handled in create_argv.
- *
- */
- static char **create_argv(pool *p, char *path, char *user, char *group,
- char *av0, const char *args)
- {
- int x, numwords;
- char **av;
- char *w;
- int idx = 0;
-
- /* count the number of keywords */
-
- for (x = 0, numwords = 1; args[x]; x++) {
- if (args[x] == '+') {
- ++numwords;
- }
- }
-
- if (numwords > APACHE_ARG_MAX - 5) {
- numwords = APACHE_ARG_MAX - 5; /* Truncate args to prevent overrun */
- }
- av = (char **) ap_palloc(p, (numwords + 5) * sizeof(char *));
-
- if (path) {
- av[idx++] = path;
- }
- if (user) {
- av[idx++] = user;
- }
- if (group) {
- av[idx++] = group;
- }
-
- av[idx++] = av0;
-
- for (x = 1; x <= numwords; x++) {
- w = ap_getword_nulls(p, &args, '+');
- ap_unescape_url(w);
- av[idx++] = ap_escape_shell_cmd(p, w);
- }
- av[idx] = NULL;
- return av;
- }
-
-
- static char *http2env(pool *a, char *w)
- {
- char *res = ap_pstrcat(a, "HTTP_", w, NULL);
- char *cp = res;
-
- while (*++cp) {
- if (!ap_isalnum(*cp) && *cp != '_') {
- *cp = '_';
- }
- else {
- *cp = ap_toupper(*cp);
- }
- }
-
- return res;
- }
-
- API_EXPORT(char **) ap_create_environment(pool *p, table *t)
- {
- array_header *env_arr = ap_table_elts(t);
- table_entry *elts = (table_entry *) env_arr->elts;
- char **env = (char **) ap_palloc(p, (env_arr->nelts + 2) * sizeof(char *));
- int i, j;
- char *tz;
- char *whack;
-
- j = 0;
- if (!ap_table_get(t, "TZ")) {
- tz = getenv("TZ");
- if (tz != NULL) {
- env[j++] = ap_pstrcat(p, "TZ=", tz, NULL);
- }
- }
- for (i = 0; i < env_arr->nelts; ++i) {
- if (!elts[i].key) {
- continue;
- }
- env[j] = ap_pstrcat(p, elts[i].key, "=", elts[i].val, NULL);
- whack = env[j];
- if (ap_isdigit(*whack)) {
- *whack++ = '_';
- }
- while (*whack != '=') {
- if (!ap_isalnum(*whack) && *whack != '_') {
- *whack = '_';
- }
- ++whack;
- }
- ++j;
- }
-
- env[j] = NULL;
- return env;
- }
-
- API_EXPORT(void) ap_add_common_vars(request_rec *r)
- {
- table *e;
- server_rec *s = r->server;
- conn_rec *c = r->connection;
- const char *rem_logname;
- char *env_path;
- #ifdef WIN32
- char *env_temp;
- #endif
- const char *host;
- array_header *hdrs_arr = ap_table_elts(r->headers_in);
- table_entry *hdrs = (table_entry *) hdrs_arr->elts;
- int i;
-
- /* use a temporary table which we'll overlap onto
- * r->subprocess_env later
- */
- e = ap_make_table(r->pool, 25 + hdrs_arr->nelts);
-
- /* First, add environment vars from headers... this is as per
- * CGI specs, though other sorts of scripting interfaces see
- * the same vars...
- */
-
- for (i = 0; i < hdrs_arr->nelts; ++i) {
- if (!hdrs[i].key) {
- continue;
- }
-
- /* A few headers are special cased --- Authorization to prevent
- * rogue scripts from capturing passwords; content-type and -length
- * for no particular reason.
- */
-
- if (!strcasecmp(hdrs[i].key, "Content-type")) {
- ap_table_addn(e, "CONTENT_TYPE", hdrs[i].val);
- }
- else if (!strcasecmp(hdrs[i].key, "Content-length")) {
- ap_table_addn(e, "CONTENT_LENGTH", hdrs[i].val);
- }
- /*
- * You really don't want to disable this check, since it leaves you
- * wide open to CGIs stealing passwords and people viewing them
- * in the environment with "ps -e". But, if you must...
- */
- #ifndef SECURITY_HOLE_PASS_AUTHORIZATION
- else if (!strcasecmp(hdrs[i].key, "Authorization")
- || !strcasecmp(hdrs[i].key, "Proxy-Authorization")) {
- continue;
- }
- #endif
- else {
- ap_table_addn(e, http2env(r->pool, hdrs[i].key), hdrs[i].val);
- }
- }
-
- if (!(env_path = getenv("PATH"))) {
- env_path = DEFAULT_PATH;
- }
-
- #ifdef WIN32
- if (env_temp = getenv("SystemRoot")) {
- ap_table_addn(e, "SystemRoot", env_temp);
- }
- if (env_temp = getenv("COMSPEC")) {
- ap_table_addn(e, "COMSPEC", env_temp);
- }
- if (env_temp = getenv("WINDIR")) {
- ap_table_addn(e, "WINDIR", env_temp);
- }
- #endif
-
- ap_table_addn(e, "PATH", env_path);
- ap_table_addn(e, "SERVER_SIGNATURE", ap_psignature("", r));
- ap_table_addn(e, "SERVER_SOFTWARE", ap_get_server_version());
- ap_table_addn(e, "SERVER_NAME", ap_get_server_name(r));
- ap_table_addn(e, "SERVER_PORT",
- ap_psprintf(r->pool, "%u", ap_get_server_port(r)));
- host = ap_get_remote_host(c, r->per_dir_config, REMOTE_HOST);
- if (host) {
- ap_table_addn(e, "REMOTE_HOST", host);
- }
- ap_table_addn(e, "REMOTE_ADDR", c->remote_ip);
- ap_table_addn(e, "DOCUMENT_ROOT", ap_document_root(r)); /* Apache */
- ap_table_addn(e, "SERVER_ADMIN", s->server_admin); /* Apache */
- ap_table_addn(e, "SCRIPT_FILENAME", r->filename); /* Apache */
-
- ap_table_addn(e, "REMOTE_PORT",
- ap_psprintf(r->pool, "%d", ntohs(c->remote_addr.sin_port)));
-
- if (c->user) {
- ap_table_addn(e, "REMOTE_USER", c->user);
- }
- if (c->ap_auth_type) {
- ap_table_addn(e, "AUTH_TYPE", c->ap_auth_type);
- }
- rem_logname = ap_get_remote_logname(r);
- if (rem_logname) {
- ap_table_addn(e, "REMOTE_IDENT", ap_pstrdup(r->pool, rem_logname));
- }
-
- /* Apache custom error responses. If we have redirected set two new vars */
-
- if (r->prev) {
- if (r->prev->args) {
- ap_table_addn(e, "REDIRECT_QUERY_STRING", r->prev->args);
- }
- if (r->prev->uri) {
- ap_table_addn(e, "REDIRECT_URL", r->prev->uri);
- }
- }
-
- ap_overlap_tables(r->subprocess_env, e, AP_OVERLAP_TABLES_SET);
- }
-
- /* This "cute" little function comes about because the path info on
- * filenames and URLs aren't always the same. So we take the two,
- * and find as much of the two that match as possible.
- */
-
- API_EXPORT(int) ap_find_path_info(const char *uri, const char *path_info)
- {
- int lu = strlen(uri);
- int lp = strlen(path_info);
-
- while (lu-- && lp-- && uri[lu] == path_info[lp]);
-
- if (lu == -1) {
- lu = 0;
- }
-
- while (uri[lu] != '\0' && uri[lu] != '/') {
- lu++;
- }
- return lu;
- }
-
- /* Obtain the Request-URI from the original request-line, returning
- * a new string from the request pool containing the URI or "".
- */
- static char *original_uri(request_rec *r)
- {
- char *first, *last;
-
- if (r->the_request == NULL) {
- return (char *) ap_pcalloc(r->pool, 1);
- }
-
- first = r->the_request; /* use the request-line */
-
- while (*first && !ap_isspace(*first)) {
- ++first; /* skip over the method */
- }
- while (ap_isspace(*first)) {
- ++first; /* and the space(s) */
- }
-
- last = first;
- while (*last && !ap_isspace(*last)) {
- ++last; /* end at next whitespace */
- }
-
- return ap_pstrndup(r->pool, first, last - first);
- }
-
- API_EXPORT(void) ap_add_cgi_vars(request_rec *r)
- {
- table *e = r->subprocess_env;
-
- ap_table_setn(e, "GATEWAY_INTERFACE", "CGI/1.1");
- ap_table_setn(e, "SERVER_PROTOCOL", r->protocol);
- ap_table_setn(e, "REQUEST_METHOD", r->method);
- ap_table_setn(e, "QUERY_STRING", r->args ? r->args : "");
- ap_table_setn(e, "REQUEST_URI", original_uri(r));
-
- /* Note that the code below special-cases scripts run from includes,
- * because it "knows" that the sub_request has been hacked to have the
- * args and path_info of the original request, and not any that may have
- * come with the script URI in the include command. Ugh.
- */
-
- if (!strcmp(r->protocol, "INCLUDED")) {
- ap_table_setn(e, "SCRIPT_NAME", r->uri);
- if (r->path_info && *r->path_info) {
- ap_table_setn(e, "PATH_INFO", r->path_info);
- }
- }
- else if (!r->path_info || !*r->path_info) {
- ap_table_setn(e, "SCRIPT_NAME", r->uri);
- }
- else {
- int path_info_start = ap_find_path_info(r->uri, r->path_info);
-
- ap_table_setn(e, "SCRIPT_NAME",
- ap_pstrndup(r->pool, r->uri, path_info_start));
-
- ap_table_setn(e, "PATH_INFO", r->path_info);
- }
-
- if (r->path_info && r->path_info[0]) {
- /*
- * To get PATH_TRANSLATED, treat PATH_INFO as a URI path.
- * Need to re-escape it for this, since the entire URI was
- * un-escaped before we determined where the PATH_INFO began.
- */
- request_rec *pa_req;
-
- pa_req = ap_sub_req_lookup_uri(ap_escape_uri(r->pool, r->path_info), r);
-
- if (pa_req->filename) {
- #ifdef WIN32
- char buffer[HUGE_STRING_LEN];
- #endif
- char *pt = ap_pstrcat(r->pool, pa_req->filename, pa_req->path_info,
- NULL);
- #ifdef WIN32
- /* We need to make this a real Windows path name */
- GetFullPathName(pt, HUGE_STRING_LEN, buffer, NULL);
- ap_table_setn(e, "PATH_TRANSLATED", ap_pstrdup(r->pool, buffer));
- #else
- ap_table_setn(e, "PATH_TRANSLATED", pt);
- #endif
- }
- ap_destroy_sub_req(pa_req);
- }
- }
-
-
- static int set_cookie_doo_doo(void *v, const char *key, const char *val)
- {
- ap_table_addn(v, key, val);
- return 1;
- }
-
- API_EXPORT(int) ap_scan_script_header_err_core(request_rec *r, char *buffer,
- int (*getsfunc) (char *, int, void *),
- void *getsfunc_data)
- {
- char x[MAX_STRING_LEN];
- char *w, *l;
- int p;
- int cgi_status = HTTP_OK;
- table *merge;
- table *cookie_table;
-
- if (buffer) {
- *buffer = '\0';
- }
- w = buffer ? buffer : x;
-
- ap_hard_timeout("read script header", r);
-
- /* temporary place to hold headers to merge in later */
- merge = ap_make_table(r->pool, 10);
-
- /* The HTTP specification says that it is legal to merge duplicate
- * headers into one. Some browsers that support Cookies don't like
- * merged headers and prefer that each Set-Cookie header is sent
- * separately. Lets humour those browsers by not merging.
- * Oh what a pain it is.
- */
- cookie_table = ap_make_table(r->pool, 2);
- ap_table_do(set_cookie_doo_doo, cookie_table, r->err_headers_out, "Set-Cookie", NULL);
-
- while (1) {
-
- if ((*getsfunc) (w, MAX_STRING_LEN - 1, getsfunc_data) == 0) {
- ap_kill_timeout(r);
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
- "Premature end of script headers: %s", r->filename);
- return HTTP_INTERNAL_SERVER_ERROR;
- }
-
- /* Delete terminal (CR?)LF */
-
- p = strlen(w);
- if (p > 0 && w[p - 1] == '\n') {
- if (p > 1 && w[p - 2] == '\015') {
- w[p - 2] = '\0';
- }
- else {
- w[p - 1] = '\0';
- }
- }
-
- /*
- * If we've finished reading the headers, check to make sure any
- * HTTP/1.1 conditions are met. If so, we're done; normal processing
- * will handle the script's output. If not, just return the error.
- * The appropriate thing to do would be to send the script process a
- * SIGPIPE to let it know we're ignoring it, close the channel to the
- * script process, and *then* return the failed-to-meet-condition
- * error. Otherwise we'd be waiting for the script to finish
- * blithering before telling the client the output was no good.
- * However, we don't have the information to do that, so we have to
- * leave it to an upper layer.
- */
- if (w[0] == '\0') {
- int cond_status = OK;
-
- ap_kill_timeout(r);
- if ((cgi_status == HTTP_OK) && (r->method_number == M_GET)) {
- cond_status = ap_meets_conditions(r);
- }
- ap_overlap_tables(r->err_headers_out, merge,
- AP_OVERLAP_TABLES_MERGE);
- if (!ap_is_empty_table(cookie_table)) {
- r->err_headers_out = ap_overlay_tables(r->pool,
- r->err_headers_out, cookie_table);
- }
- return cond_status;
- }
-
- /* if we see a bogus header don't ignore it. Shout and scream */
-
- #ifdef CHARSET_EBCDIC
- /* Chances are that we received an ASCII header text instead of
- * the expected EBCDIC header lines. Try to auto-detect:
- */
- if (!(l = strchr(w, ':'))) {
- int maybeASCII = 0, maybeEBCDIC = 0;
- char *cp;
-
- for (cp = w; *cp != '\0'; ++cp) {
- if (isprint(*cp) && !isprint(os_toebcdic[*cp]))
- ++maybeEBCDIC;
- if (!isprint(*cp) && isprint(os_toebcdic[*cp]))
- ++maybeASCII;
- }
- if (maybeASCII > maybeEBCDIC) {
- ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r->server,
- "CGI Interface Error: Script headers apparently ASCII: (CGI = %s)", r->filename);
- ascii2ebcdic(w, w, cp - w);
- }
- }
- #endif
- if (!(l = strchr(w, ':'))) {
- char malformed[(sizeof MALFORMED_MESSAGE) + 1
- + MALFORMED_HEADER_LENGTH_TO_SHOW];
-
- strcpy(malformed, MALFORMED_MESSAGE);
- strncat(malformed, w, MALFORMED_HEADER_LENGTH_TO_SHOW);
-
- if (!buffer) {
- /* Soak up all the script output - may save an outright kill */
- while ((*getsfunc) (w, MAX_STRING_LEN - 1, getsfunc_data)) {
- continue;
- }
- }
-
- ap_kill_timeout(r);
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
- "%s: %s", malformed, r->filename);
- return HTTP_INTERNAL_SERVER_ERROR;
- }
-
- *l++ = '\0';
- while (*l && ap_isspace(*l)) {
- ++l;
- }
-
- if (!strcasecmp(w, "Content-type")) {
- char *tmp;
-
- /* Nuke trailing whitespace */
-
- char *endp = l + strlen(l) - 1;
- while (endp > l && ap_isspace(*endp)) {
- *endp-- = '\0';
- }
-
- tmp = ap_pstrdup(r->pool, l);
- ap_content_type_tolower(tmp);
- r->content_type = tmp;
- }
- /*
- * If the script returned a specific status, that's what
- * we'll use - otherwise we assume 200 OK.
- */
- else if (!strcasecmp(w, "Status")) {
- r->status = cgi_status = atoi(l);
- r->status_line = ap_pstrdup(r->pool, l);
- }
- else if (!strcasecmp(w, "Location")) {
- ap_table_set(r->headers_out, w, l);
- }
- else if (!strcasecmp(w, "Content-Length")) {
- ap_table_set(r->headers_out, w, l);
- }
- else if (!strcasecmp(w, "Transfer-Encoding")) {
- ap_table_set(r->headers_out, w, l);
- }
- /*
- * If the script gave us a Last-Modified header, we can't just
- * pass it on blindly because of restrictions on future values.
- */
- else if (!strcasecmp(w, "Last-Modified")) {
- time_t mtime = ap_parseHTTPdate(l);
-
- ap_update_mtime(r, mtime);
- ap_set_last_modified(r);
- }
- else if (!strcasecmp(w, "Set-Cookie")) {
- ap_table_add(cookie_table, w, l);
- }
- else {
- ap_table_add(merge, w, l);
- }
- }
- }
-
- static int getsfunc_FILE(char *buf, int len, void *f)
- {
- return fgets(buf, len, (FILE *) f) != NULL;
- }
-
- API_EXPORT(int) ap_scan_script_header_err(request_rec *r, FILE *f,
- char *buffer)
- {
- return ap_scan_script_header_err_core(r, buffer, getsfunc_FILE, f);
- }
-
- static int getsfunc_BUFF(char *w, int len, void *fb)
- {
- return ap_bgets(w, len, (BUFF *) fb) > 0;
- }
-
- API_EXPORT(int) ap_scan_script_header_err_buff(request_rec *r, BUFF *fb,
- char *buffer)
- {
- return ap_scan_script_header_err_core(r, buffer, getsfunc_BUFF, fb);
- }
-
-
- API_EXPORT(void) ap_send_size(size_t size, request_rec *r)
- {
- /* XXX: this -1 thing is a gross hack */
- if (size == (size_t)-1) {
- ap_rputs(" -", r);
- }
- else if (!size) {
- ap_rputs(" 0k", r);
- }
- else if (size < 1024) {
- ap_rputs(" 1k", r);
- }
- else if (size < 1048576) {
- ap_rprintf(r, "%4dk", (size + 512) / 1024);
- }
- else if (size < 103809024) {
- ap_rprintf(r, "%4.1fM", size / 1048576.0);
- }
- else {
- ap_rprintf(r, "%4dM", (size + 524288) / 1048576);
- }
- }
-
- #if defined(OS2) || defined(WIN32)
- static char **create_argv_cmd(pool *p, char *av0, const char *args, char *path)
- {
- register int x, n;
- char **av;
- char *w;
-
- for (x = 0, n = 2; args[x]; x++) {
- if (args[x] == '+') {
- ++n;
- }
- }
-
- /* Add extra strings to array. */
- n = n + 2;
-
- av = (char **) ap_palloc(p, (n + 1) * sizeof(char *));
- av[0] = av0;
-
- /* Now insert the extra strings we made room for above. */
- av[1] = strdup("/C");
- av[2] = strdup(path);
-
- for (x = (1 + 2); x < n; x++) {
- w = ap_getword(p, &args, '+');
- ap_unescape_url(w);
- av[x] = ap_escape_shell_cmd(p, w);
- }
- av[n] = NULL;
- return av;
- }
- #endif
-
-
- API_EXPORT(int) ap_call_exec(request_rec *r, child_info *pinfo, char *argv0,
- char **env, int shellcmd)
- {
- int pid = 0;
- #if defined(RLIMIT_CPU) || defined(RLIMIT_NPROC) || \
- defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined (RLIMIT_AS)
-
- core_dir_config *conf;
- conf = (core_dir_config *) ap_get_module_config(r->per_dir_config,
- &core_module);
-
- #endif
-
- #ifndef WIN32
- /* the fd on r->server->error_log is closed, but we need somewhere to
- * put the error messages from the log_* functions. So, we use stderr,
- * since that is better than allowing errors to go unnoticed. Don't do
- * this on Win32, though, since we haven't fork()'d.
- */
- r->server->error_log = stderr;
- #endif
-
- #ifdef RLIMIT_CPU
- if (conf->limit_cpu != NULL) {
- if ((setrlimit(RLIMIT_CPU, conf->limit_cpu)) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, r->server,
- "setrlimit: failed to set CPU usage limit");
- }
- }
- #endif
- #ifdef RLIMIT_NPROC
- if (conf->limit_nproc != NULL) {
- if ((setrlimit(RLIMIT_NPROC, conf->limit_nproc)) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, r->server,
- "setrlimit: failed to set process limit");
- }
- }
- #endif
- #if defined(RLIMIT_AS)
- if (conf->limit_mem != NULL) {
- if ((setrlimit(RLIMIT_AS, conf->limit_mem)) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, r->server,
- "setrlimit(RLIMIT_AS): failed to set memory "
- "usage limit");
- }
- }
- #elif defined(RLIMIT_DATA)
- if (conf->limit_mem != NULL) {
- if ((setrlimit(RLIMIT_DATA, conf->limit_mem)) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, r->server,
- "setrlimit(RLIMIT_DATA): failed to set memory "
- "usage limit");
- }
- }
- #elif defined(RLIMIT_VMEM)
- if (conf->limit_mem != NULL) {
- if ((setrlimit(RLIMIT_VMEM, conf->limit_mem)) != 0) {
- ap_log_error(APLOG_MARK, APLOG_ERR, r->server,
- "setrlimit(RLIMIT_VMEM): failed to set memory "
- "usage limit");
- }
- }
- #endif
-
- #ifdef OS2
- {
- /* Additions by Alec Kloss, to allow exec'ing of scripts under OS/2 */
- int is_script;
- char interpreter[2048]; /* hope it's enough for the interpreter path */
- FILE *program;
-
- program = fopen(r->filename, "rt");
- if (!program) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r, "fopen(%s) failed",
- r->filename);
- return (pid);
- }
- fgets(interpreter, sizeof(interpreter), program);
- fclose(program);
- if (!strncmp(interpreter, "#!", 2)) {
- is_script = 1;
- interpreter[strlen(interpreter) - 1] = '\0';
- }
- else {
- is_script = 0;
- }
-
- if ((!r->args) || (!r->args[0]) || strchr(r->args, '=')) {
- int emxloop;
- char *emxtemp;
-
- /* For OS/2 place the variables in the current
- * environment then it will be inherited. This way
- * the program will also get all of OS/2's other SETs.
- */
- for (emxloop = 0; ((emxtemp = env[emxloop]) != NULL); emxloop++) {
- putenv(emxtemp);
- }
-
- /* More additions by Alec Kloss for OS/2 */
- if (is_script) {
- /* here's the stuff to run the interpreter */
- execl(interpreter + 2, interpreter + 2, r->filename, NULL);
- }
- else if (strstr(strupr(r->filename), ".CMD") > 0) {
- /* Special case to allow use of REXX commands as scripts. */
- os2pathname(r->filename);
- execl(SHELL_PATH, SHELL_PATH, "/C", r->filename, NULL);
- }
- else {
- execl(r->filename, argv0, NULL);
- }
- }
- else {
- int emxloop;
- char *emxtemp;
-
- /* For OS/2 place the variables in the current
- * environment so that they will be inherited. This way
- * the program will also get all of OS/2's other SETs.
- */
- for (emxloop = 0; ((emxtemp = env[emxloop]) != NULL); emxloop++) {
- putenv(emxtemp);
- }
-
- if (strstr(strupr(r->filename), ".CMD") > 0) {
- /* Special case to allow use of REXX commands as scripts. */
- os2pathname(r->filename);
- execv(SHELL_PATH, create_argv_cmd(r->pool, argv0, r->args,
- r->filename));
- }
- else {
- execv(r->filename,
- create_argv(r->pool, NULL, NULL, NULL, argv0, r->args));
- }
- }
- return (pid);
- }
- #elif defined(WIN32)
- {
- /* Adapted from Alec Kloss' work for OS/2 */
- int is_script = 0;
- int is_binary = 0;
- char interpreter[2048]; /* hope it's enough for the interpreter path */
- FILE *program;
- int i, sz;
- char *dot;
- char *exename;
- char *quoted_filename;
- int is_exe = 0;
- STARTUPINFO si;
- PROCESS_INFORMATION pi;
- char *pCommand;
- char *pEnvBlock, *pNext;
- int iEnvBlockLen;
-
- memset(&si, 0, sizeof(si));
- memset(&pi, 0, sizeof(pi));
-
- interpreter[0] = 0;
- pid = -1;
-
- quoted_filename = ap_pstrcat(r->pool, "\"", r->filename, "\"", NULL);
-
- if (!shellcmd) {
- exename = strrchr(r->filename, '/');
- if (!exename) {
- exename = strrchr(r->filename, '\\');
- }
- if (!exename) {
- exename = r->filename;
- }
- else {
- exename++;
- }
- dot = strrchr(exename, '.');
- if (dot) {
- if (!strcasecmp(dot, ".BAT")
- || !strcasecmp(dot, ".CMD")
- || !strcasecmp(dot, ".EXE")
- || !strcasecmp(dot, ".COM")) {
- is_exe = 1;
- }
- }
-
- if (!is_exe) {
- program = fopen(r->filename, "rb");
- if (!program) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
- "fopen(%s) failed", r->filename);
- return (pid);
- }
- sz = fread(interpreter, 1, sizeof(interpreter) - 1, program);
- if (sz < 0) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
- "fread of %s failed", r->filename);
- fclose(program);
- return (pid);
- }
- interpreter[sz] = 0;
- fclose(program);
- if (!strncmp(interpreter, "#!", 2)) {
- is_script = 1;
- for (i = 2; i < sizeof(interpreter); i++) {
- if ((interpreter[i] == '\r')
- || (interpreter[i] == '\n')) {
- break;
- }
- }
- interpreter[i] = 0;
- for (i = 2; interpreter[i] == ' '; ++i)
- ;
- memmove(interpreter+2,interpreter+i,strlen(interpreter+i)+1);
- }
- else {
- /* Check to see if it's a executable */
- IMAGE_DOS_HEADER *hdr = (IMAGE_DOS_HEADER*)interpreter;
- if (hdr->e_magic == IMAGE_DOS_SIGNATURE && hdr->e_cblp < 512) {
- is_binary = 1;
- }
- }
- }
- /* Bail out if we haven't figured out what kind of
- * file this is by now..
- */
- if (!is_exe && !is_script && !is_binary) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, r,
- "%s is not executable; ensure interpreted scripts have "
- "\"#!\" first line",
- r->filename);
- return (pid);
- }
- }
-
- if (shellcmd) {
- char *shell_cmd = "CMD.EXE /C ";
- OSVERSIONINFO osver;
- osver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
-
- /*
- * Use CMD.EXE for NT, COMMAND.COM for WIN95
- */
- if (GetVersionEx(&osver)) {
- if (osver.dwPlatformId != VER_PLATFORM_WIN32_NT) {
- shell_cmd = "COMMAND.COM /C ";
- }
- }
- pCommand = ap_pstrcat(r->pool, shell_cmd, argv0, NULL);
- }
- else if ((!r->args) || (!r->args[0]) || strchr(r->args, '=')) {
- if (is_exe || is_binary) {
- /*
- * When the CGI is a straight binary executable,
- * we can run it as is
- */
- pCommand = quoted_filename;
- }
- else if (is_script) {
- /* When an interpreter is needed, we need to create
- * a command line that has the interpreter name
- * followed by the CGI script name.
- */
- pCommand = ap_pstrcat(r->pool, interpreter + 2, " ",
- quoted_filename, NULL);
- }
- else {
- /* If not an executable or script, just execute it
- * from a command prompt.
- */
- pCommand = ap_pstrcat(r->pool, SHELL_PATH, " /C ",
- quoted_filename, NULL);
- }
- }
- else {
-
- /* If we are in this leg, there are some other arguments
- * that we must include in the execution of the CGI.
- * Because CreateProcess is the way it is, we have to
- * create a command line like format for the execution
- * of the CGI. This means we need to create on long
- * string with the executable and arguments.
- *
- * The arguments string comes in the request structure,
- * and each argument is separated by a '+'. We'll replace
- * these pluses with spaces.
- */
- char *arguments=NULL;
- int iStringSize = 0;
- int x;
-
- /*
- * Duplicate the request structure string so we don't change it.
- */
- arguments = ap_pstrdup(r->pool, r->args);
-
- /*
- * Change the '+' to ' '
- */
- for (x=0; arguments[x]; x++) {
- if ('+' == arguments[x]) {
- arguments[x] = ' ';
- }
- }
-
- /*
- * We need to unescape any characters that are
- * in the arguments list.
- */
- ap_unescape_url(arguments);
- arguments = ap_escape_shell_cmd(r->pool, arguments);
-
- /*
- * The argument list should now be good to use,
- * so now build the command line.
- */
- if (is_exe || is_binary) {
- pCommand = ap_pstrcat(r->pool, quoted_filename, " ",
- arguments, NULL);
- }
- else if (is_script) {
- pCommand = ap_pstrcat(r->pool, interpreter + 2, " ",
- quoted_filename, " ", arguments, NULL);
- }
- else {
- pCommand = ap_pstrcat(r->pool, SHELL_PATH, " /C ",
- quoted_filename, " ", arguments, NULL);
- }
- }
-
- /*
- * Make child process use hPipeOutputWrite as standard out,
- * and make sure it does not show on screen.
- */
- si.cb = sizeof(si);
- si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
- si.wShowWindow = SW_HIDE;
- si.hStdInput = pinfo->hPipeInputRead;
- si.hStdOutput = pinfo->hPipeOutputWrite;
- si.hStdError = pinfo->hPipeErrorWrite;
-
- /*
- * Win32's CreateProcess call requires that the environment
- * be passed in an environment block, a null terminated block of
- * null terminated strings.
- */
- i = 0;
- iEnvBlockLen = 1;
- while (env[i]) {
- iEnvBlockLen += strlen(env[i]) + 1;
- i++;
- }
-
- pEnvBlock = (char *)ap_pcalloc(r->pool,iEnvBlockLen);
-
- i = 0;
- pNext = pEnvBlock;
- while (env[i]) {
- strcpy(pNext, env[i]);
- pNext = pNext + strlen(pNext) + 1;
- i++;
- }
-
- if (CreateProcess(NULL, pCommand, NULL, NULL, TRUE, 0, pEnvBlock,
- ap_make_dirstr_parent(r->pool, r->filename),
- &si, &pi)) {
- pid = pi.dwProcessId;
- /*
- * We must close the handles to the new process and its main thread
- * to prevent handle and memory leaks.
- */
- CloseHandle(pi.hProcess);
- CloseHandle(pi.hThread);
- } else {
- if (is_script) {
- /* since we are doing magic to find what we are executing
- * if running a script, log what we think we should have
- * executed
- */
- ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_WIN32ERROR, r,
- "could not run script interpreter: %s", pCommand);
- }
- }
- #if 0
- if ((!r->args) || (!r->args[0]) || strchr(r->args, '=')) {
- if (is_exe || is_binary) {
- pid = spawnle(_P_NOWAIT, r->filename, r->filename, NULL, env);
- }
- else if (is_script) {
- pid = spawnle(_P_NOWAIT, interpreter + 2, interpreter + 2,
- r->filename, NULL, env);
- }
- else {
- pid = spawnle(_P_NOWAIT, SHELL_PATH, SHELL_PATH, "/C",
- r->filename, NULL, env);
- }
- }
- else {
- if (is_exe || is_binary) {
- pid = spawnve(_P_NOWAIT, r->filename,
- create_argv(r->pool, NULL, NULL, NULL, argv0,
- r->args), env);
- }
- else if (is_script) {
- pid = spawnve(_P_NOWAIT, interpreter + 2,
- create_argv(r->pool, interpreter + 2, NULL, NULL,
- r->filename, r->args), env);
- }
- else {
- pid = spawnve(_P_NOWAIT, SHELL_PATH,
- create_argv_cmd(r->pool, argv0, r->args,
- r->filename), env);
- }
- }
- #endif
- return (pid);
- }
- #else
- if (ap_suexec_enabled
- && ((r->server->server_uid != ap_user_id)
- || (r->server->server_gid != ap_group_id)
- || (!strncmp("/~", r->uri, 2)))) {
-
- char *execuser, *grpname;
- struct passwd *pw;
- struct group *gr;
-
- if (!strncmp("/~", r->uri, 2)) {
- gid_t user_gid;
- char *username = ap_pstrdup(r->pool, r->uri + 2);
- char *pos = strchr(username, '/');
-
- if (pos) {
- *pos = '\0';
- }
-
- if ((pw = getpwnam(username)) == NULL) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
- "getpwnam: invalid username %s", username);
- return (pid);
- }
- execuser = ap_pstrcat(r->pool, "~", pw->pw_name, NULL);
- user_gid = pw->pw_gid;
-
- if ((gr = getgrgid(user_gid)) == NULL) {
- if ((grpname = ap_palloc(r->pool, 16)) == NULL) {
- return (pid);
- }
- else {
- ap_snprintf(grpname, 16, "%ld", (long) user_gid);
- }
- }
- else {
- grpname = gr->gr_name;
- }
- }
- else {
- if ((pw = getpwuid(r->server->server_uid)) == NULL) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
- "getpwuid: invalid userid %ld",
- (long) r->server->server_uid);
- return (pid);
- }
- execuser = ap_pstrdup(r->pool, pw->pw_name);
-
- if ((gr = getgrgid(r->server->server_gid)) == NULL) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, r,
- "getgrgid: invalid groupid %ld",
- (long) r->server->server_gid);
- return (pid);
- }
- grpname = gr->gr_name;
- }
-
- if (shellcmd) {
- execle(SUEXEC_BIN, SUEXEC_BIN, execuser, grpname, argv0,
- NULL, env);
- }
-
- else if ((!r->args) || (!r->args[0]) || strchr(r->args, '=')) {
- execle(SUEXEC_BIN, SUEXEC_BIN, execuser, grpname, argv0,
- NULL, env);
- }
-
- else {
- execve(SUEXEC_BIN,
- create_argv(r->pool, SUEXEC_BIN, execuser, grpname,
- argv0, r->args),
- env);
- }
- }
- else {
- if (shellcmd) {
- execle(SHELL_PATH, SHELL_PATH, "-c", argv0, NULL, env);
- }
-
- else if ((!r->args) || (!r->args[0]) || strchr(r->args, '=')) {
- execle(r->filename, argv0, NULL, env);
- }
-
- else {
- execve(r->filename,
- create_argv(r->pool, NULL, NULL, NULL, argv0, r->args),
- env);
- }
- }
- return (pid);
- #endif
- }
-