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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:01:30 +0000
commit6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch)
tree1ce8673d4aaa948e5554000101f46536a1e4cc29 /support/fcgistarter.c
parentInitial commit. (diff)
downloadapache2-3d46059c28a1d66e6e1aeb209491f1324c913a25.tar.xz
apache2-3d46059c28a1d66e6e1aeb209491f1324c913a25.zip
Adding upstream version 2.4.57.upstream/2.4.57
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'support/fcgistarter.c')
-rw-r--r--support/fcgistarter.c220
1 files changed, 220 insertions, 0 deletions
diff --git a/support/fcgistarter.c b/support/fcgistarter.c
new file mode 100644
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--- /dev/null
+++ b/support/fcgistarter.c
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <apr.h>
+#include <apr_pools.h>
+#include <apr_network_io.h>
+#include <apr_thread_proc.h>
+#include <apr_getopt.h>
+#include <apr_portable.h>
+
+#if APR_HAVE_STDLIB_H
+#include <stdlib.h> /* For EXIT_SUCCESS, EXIT_FAILURE */
+#endif
+
+#if APR_HAVE_UNISTD_H
+#include <unistd.h> /* For execl */
+#endif
+
+static const char *usage_message =
+ "usage: fcgistarter -c <command> -p <port> [-i <interface> -N <num>]\n"
+ "\n"
+ "If an interface is not specified, any available will be used.\n";
+
+static void usage(void)
+{
+ fprintf(stderr, "%s", usage_message);
+
+ exit(EXIT_FAILURE);
+}
+
+static void exit_error(apr_status_t rv, const char *func)
+{
+ char buffer[1024];
+
+ fprintf(stderr,
+ "%s: %s\n",
+ func,
+ apr_strerror(rv, buffer, sizeof(buffer)));
+
+ exit(EXIT_FAILURE);
+}
+
+int main(int argc, const char * const argv[])
+{
+ apr_file_t *infd, *skwrapper;
+ apr_sockaddr_t *skaddr;
+ apr_getopt_t *gopt;
+ apr_socket_t *skt;
+ apr_pool_t *pool;
+ apr_status_t rv;
+ apr_proc_t proc;
+
+
+ /* Command line arguments */
+ int num_to_start = 1, port = 0;
+ const char *interface = NULL;
+ const char *command = NULL;
+
+ apr_app_initialize(&argc, &argv, NULL);
+
+ atexit(apr_terminate);
+
+ apr_pool_create(&pool, NULL);
+
+ rv = apr_getopt_init(&gopt, pool, argc, argv);
+ if (rv) {
+ return EXIT_FAILURE;
+ }
+
+ for (;;) {
+ const char *arg;
+ char opt;
+
+ rv = apr_getopt(gopt, "c:p:i:N:", &opt, &arg);
+ if (APR_STATUS_IS_EOF(rv)) {
+ break;
+ } else if (rv) {
+ usage();
+ } else {
+ switch (opt) {
+ case 'c':
+ command = arg;
+ break;
+
+ case 'p':
+ port = atoi(arg);
+ if (! port) {
+ usage();
+ }
+ break;
+
+ case 'i':
+ interface = arg;
+ break;
+
+ case 'N':
+ num_to_start = atoi(arg);
+ if (! num_to_start) {
+ usage();
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+ }
+
+ if (! command || ! port) {
+ usage();
+ }
+
+ rv = apr_sockaddr_info_get(&skaddr, interface, APR_UNSPEC, port, 0, pool);
+ if (rv) {
+ exit_error(rv, "apr_sockaddr_info_get");
+ }
+
+ rv = apr_socket_create(&skt, skaddr->family, SOCK_STREAM, APR_PROTO_TCP, pool);
+ if (rv) {
+ exit_error(rv, "apr_socket_create");
+ }
+
+ rv = apr_socket_opt_set(skt, APR_SO_REUSEADDR, 1);
+ if (rv) {
+ exit_error(rv, "apr_socket_opt_set(APR_SO_REUSEADDR)");
+ }
+
+ rv = apr_socket_bind(skt, skaddr);
+ if (rv) {
+ exit_error(rv, "apr_socket_bind");
+ }
+
+ rv = apr_socket_listen(skt, 1024);
+ if (rv) {
+ exit_error(rv, "apr_socket_listen");
+ }
+
+ rv = apr_proc_detach(APR_PROC_DETACH_DAEMONIZE);
+ if (rv) {
+ exit_error(rv, "apr_proc_detach");
+ }
+
+#if defined(WIN32) || defined(OS2) || defined(NETWARE)
+
+#error "Please implement me."
+
+#else
+
+ while (--num_to_start >= 0) {
+ rv = apr_proc_fork(&proc, pool);
+ if (rv == APR_INCHILD) {
+ apr_os_file_t oft = 0;
+ apr_os_sock_t oskt;
+
+ /* Ok, so we need a file that has file descriptor 0 (which
+ * FastCGI wants), but points to our socket. This isn't really
+ * possible in APR, so we cheat a bit. I have no idea how to
+ * do this on a non-unix platform, so for now this is platform
+ * specific. Ick.
+ *
+ * Note that this has to happen post-detach, otherwise fd 0
+ * gets closed during apr_proc_detach and it's all for nothing.
+ *
+ * Unfortunately, doing this post detach means we have no way
+ * to let anyone know if there's a problem at this point :( */
+
+ rv = apr_os_file_put(&infd, &oft, APR_READ | APR_WRITE, pool);
+ if (rv) {
+ exit(EXIT_FAILURE);
+ }
+
+ rv = apr_os_sock_get(&oskt, skt);
+ if (rv) {
+ exit(EXIT_FAILURE);
+ }
+
+ rv = apr_os_file_put(&skwrapper, &oskt, APR_READ | APR_WRITE,
+ pool);
+ if (rv) {
+ exit(EXIT_FAILURE);
+ }
+
+ rv = apr_file_dup2(infd, skwrapper, pool);
+ if (rv) {
+ exit(EXIT_FAILURE);
+ }
+
+ /* XXX Can't use apr_proc_create because there's no way to get
+ * infd into the procattr without going through another dup2,
+ * which means by the time it gets to the fastcgi process it
+ * is no longer fd 0, so it doesn't work. Sigh. */
+
+ execl(command, command, NULL);
+
+ } else if (rv == APR_INPARENT) {
+ if (num_to_start == 0) {
+ apr_socket_close(skt);
+ }
+ } else {
+ exit_error(rv, "apr_proc_fork");
+ }
+ }
+
+#endif
+
+ return EXIT_SUCCESS;
+}