| /* |
| This file is part of libmicrohttpd |
| Copyright (C) 2008,2016 Christian Grothoff |
| |
| libmicrohttpd is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 2, or (at your |
| option) any later version. |
| |
| libmicrohttpd is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with libmicrohttpd; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| /** |
| * @file socat.c |
| * @brief Code to fork-exec zzuf and start the socat process |
| * @author Christian Grothoff |
| */ |
| |
| #include <errno.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <signal.h> |
| |
| #ifdef _WIN32 |
| #ifndef WIN32_LEAN_AND_MEAN |
| #define WIN32_LEAN_AND_MEAN 1 |
| #endif /* !WIN32_LEAN_AND_MEAN */ |
| #include <windows.h> |
| #endif |
| |
| |
| /** |
| * A larger loop count will run more random tests -- |
| * which would be good, except that it may take too |
| * long for most user's patience. So this small |
| * value is the default. |
| */ |
| #ifndef _MHD_VHEAVY_TESTS |
| #define LOOP_COUNT 10 |
| #else /* ! _MHD_VHEAVY_TESTS */ |
| #define LOOP_COUNT 200 |
| #endif /* ! _MHD_VHEAVY_TESTS */ |
| |
| #define CURL_TIMEOUT 50L |
| |
| static pid_t zzuf_pid; |
| |
| static void |
| zzuf_socat_start () |
| { |
| int status; |
| char *const args[] = { |
| "zzuf", |
| "--ratio=0.0:0.75", |
| "-n", |
| "-A", |
| "socat", |
| "-lf", |
| "/dev/null", |
| "TCP4-LISTEN:11081,reuseaddr,fork", |
| "TCP4:127.0.0.1:11080", |
| NULL, |
| }; |
| zzuf_pid = fork (); |
| if (zzuf_pid == -1) |
| { |
| fprintf (stderr, "fork failed: %s\n", strerror (errno)); |
| exit (1); |
| } |
| if (zzuf_pid != 0) |
| { |
| (void) sleep (1); /* allow zzuf and socat to start */ |
| status = 0; |
| if (0 < waitpid (zzuf_pid, &status, WNOHANG)) |
| { |
| if (WIFEXITED (status)) |
| fprintf (stderr, |
| "zzuf died with status code %d!\n", |
| WEXITSTATUS (status)); |
| if (WIFSIGNALED (status)) |
| fprintf (stderr, |
| "zzuf died from signal %d!\n", WTERMSIG (status)); |
| exit (1); |
| } |
| return; |
| } |
| setpgid (0, 0); |
| execvp ("zzuf", args); |
| fprintf (stderr, "execution of `zzuf' failed: %s\n", strerror (errno)); |
| exit (1); |
| } |
| |
| |
| static void |
| zzuf_socat_stop () |
| { |
| int status; |
| if (zzuf_pid != 0) |
| { |
| if (0 != killpg (zzuf_pid, SIGINT)) |
| fprintf (stderr, "Failed to killpg: %s\n", strerror (errno)); |
| kill (zzuf_pid, SIGINT); |
| waitpid (zzuf_pid, &status, 0); |
| (void) sleep (1); /* allow socat to also die in peace */ |
| } |
| } |
| |
| |
| /* end of socat.c */ |