From 97c26c1924b076ef23ebe4381558e8aa025712b2 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:54:37 +0200 Subject: Adding upstream version 1:4.13+dfsg1. Signed-off-by: Daniel Baumann --- lib/spawn.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 lib/spawn.c (limited to 'lib/spawn.c') diff --git a/lib/spawn.c b/lib/spawn.c new file mode 100644 index 0000000..ce1a97d --- /dev/null +++ b/lib/spawn.c @@ -0,0 +1,63 @@ +/* + * SPDX-FileCopyrightText: 2011 , Jonathan Nieder + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include + +#include +#include +#include +#include +#include +#include +#include "exitcodes.h" +#include "prototypes.h" + +#include "shadowlog_internal.h" + +int run_command (const char *cmd, const char *argv[], + /*@null@*/const char *envp[], /*@out@*/int *status) +{ + pid_t pid, wpid; + + if (NULL == envp) { + envp = (const char **)environ; + } + + (void) fflush (stdout); + (void) fflush (shadow_logfd); + + pid = fork (); + if (0 == pid) { + (void) execve (cmd, (char * const *) argv, + (char * const *) envp); + if (ENOENT == errno) { + exit (E_CMD_NOTFOUND); + } + fprintf (shadow_logfd, "%s: cannot execute %s: %s\n", + shadow_progname, cmd, strerror (errno)); + exit (E_CMD_NOEXEC); + } else if ((pid_t)-1 == pid) { + fprintf (shadow_logfd, "%s: cannot execute %s: %s\n", + shadow_progname, cmd, strerror (errno)); + return -1; + } + + do { + wpid = waitpid (pid, status, 0); + if ((pid_t)-1 == wpid && errno == ECHILD) + break; + } while ( ((pid_t)-1 == wpid && errno == EINTR) + || ((pid_t)-1 != wpid && wpid != pid)); + + if ((pid_t)-1 == wpid) { + fprintf (shadow_logfd, "%s: waitpid (status: %d): %s\n", + shadow_progname, *status, strerror (errno)); + return -1; + } + + return 0; +} + -- cgit v1.2.3