diff options
Diffstat (limited to 'lib/roken/simple_exec.c')
| -rw-r--r-- | lib/roken/simple_exec.c | 124 |
1 files changed, 52 insertions, 72 deletions
diff --git a/lib/roken/simple_exec.c b/lib/roken/simple_exec.c index 447b5bfd0270..97679d7e4175 100644 --- a/lib/roken/simple_exec.c +++ b/lib/roken/simple_exec.c @@ -1,40 +1,37 @@ /* - * Copyright (c) 1998 - 2001, 2004 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. + * Copyright (c) 1998 - 2001, 2004 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: + * 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. + * 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. + * 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. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS 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 INSTITUTE OR 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 IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS 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 INSTITUTE OR 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. */ -#ifdef HAVE_CONFIG_H #include <config.h> -RCSID("$Id: simple_exec.c 21005 2007-06-08 01:54:35Z lha $"); -#endif #include <stdarg.h> #include <stdlib.h> @@ -55,13 +52,13 @@ RCSID("$Id: simple_exec.c 21005 2007-06-08 01:54:35Z lha $"); #define EX_NOTFOUND 127 /* return values: - -1 on `unspecified' system errors - -2 on fork failures - -3 on waitpid errors - -4 exec timeout + SE_E_UNSPECIFIED on `unspecified' system errors + SE_E_FORKFAILED on fork failures + SE_E_WAITPIDFAILED on waitpid errors + SE_E_EXECTIMEOUT exec timeout 0- is return value from subprocess - 126 if the program couldn't be executed - 127 if the program couldn't be found + SE_E_NOEXEC if the program couldn't be executed + SE_E_NOTFOUND if the program couldn't be found 128- is 128 + signal that killed subprocess possible values `func' can return: @@ -81,8 +78,8 @@ sigtimeout(int sig) SIGRETURN(0); } -int ROKEN_LIB_FUNCTION -wait_for_process_timed(pid_t pid, time_t (*func)(void *), +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL +wait_for_process_timed(pid_t pid, time_t (*func)(void *), void *ptr, time_t timeout) { RETSIGTYPE (*old_func)(int sig) = NULL; @@ -101,7 +98,7 @@ wait_for_process_timed(pid_t pid, time_t (*func)(void *), while(waitpid(pid, &status, 0) < 0) { if (errno != EINTR) { - ret = -3; + ret = SE_E_WAITPIDFAILED; goto out; } if (func == NULL) @@ -113,7 +110,7 @@ wait_for_process_timed(pid_t pid, time_t (*func)(void *), kill(pid, SIGTERM); continue; } else if (timeout == (time_t)-2) { - ret = -4; + ret = SE_E_EXECTIMEOUT; goto out; } alarm(timeout); @@ -137,14 +134,14 @@ wait_for_process_timed(pid_t pid, time_t (*func)(void *), return ret; } -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL wait_for_process(pid_t pid) { return wait_for_process_timed(pid, NULL, NULL, 0); } -int ROKEN_LIB_FUNCTION -pipe_execv(FILE **stdin_fd, FILE **stdout_fd, FILE **stderr_fd, +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL +pipe_execv(FILE **stdin_fd, FILE **stdout_fd, FILE **stderr_fd, const char *file, ...) { int in_fd[2], out_fd[2], err_fd[2]; @@ -214,7 +211,7 @@ pipe_execv(FILE **stdin_fd, FILE **stdout_fd, FILE **stderr_fd, close(err_fd[0]); close(err_fd[1]); } - return -2; + return SE_E_FORKFAILED; default: if(stdin_fd != NULL) { close(in_fd[0]); @@ -232,52 +229,52 @@ pipe_execv(FILE **stdin_fd, FILE **stdout_fd, FILE **stderr_fd, return pid; } -int ROKEN_LIB_FUNCTION -simple_execvp_timed(const char *file, char *const args[], +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL +simple_execvp_timed(const char *file, char *const args[], time_t (*func)(void *), void *ptr, time_t timeout) { pid_t pid = fork(); switch(pid){ case -1: - return -2; + return SE_E_FORKFAILED; case 0: execvp(file, args); exit((errno == ENOENT) ? EX_NOTFOUND : EX_NOEXEC); - default: + default: return wait_for_process_timed(pid, func, ptr, timeout); } } -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL simple_execvp(const char *file, char *const args[]) { return simple_execvp_timed(file, args, NULL, NULL, 0); } /* gee, I'd like a execvpe */ -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL simple_execve_timed(const char *file, char *const args[], char *const envp[], time_t (*func)(void *), void *ptr, time_t timeout) { pid_t pid = fork(); switch(pid){ case -1: - return -2; + return SE_E_FORKFAILED; case 0: execve(file, args, envp); exit((errno == ENOENT) ? EX_NOTFOUND : EX_NOEXEC); - default: + default: return wait_for_process_timed(pid, func, ptr, timeout); } } -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL simple_execve(const char *file, char *const args[], char *const envp[]) { return simple_execve_timed(file, args, envp, NULL, NULL, 0); } -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL simple_execlp(const char *file, ...) { va_list ap; @@ -288,13 +285,13 @@ simple_execlp(const char *file, ...) argv = vstrcollect(&ap); va_end(ap); if(argv == NULL) - return -1; + return SE_E_UNSPECIFIED; ret = simple_execvp(file, argv); free(argv); return ret; } -int ROKEN_LIB_FUNCTION +ROKEN_LIB_FUNCTION int ROKEN_LIB_CALL simple_execle(const char *file, ... /* ,char *const envp[] */) { va_list ap; @@ -307,25 +304,8 @@ simple_execle(const char *file, ... /* ,char *const envp[] */) envp = va_arg(ap, char **); va_end(ap); if(argv == NULL) - return -1; + return SE_E_UNSPECIFIED; ret = simple_execve(file, argv, envp); free(argv); return ret; } - -int ROKEN_LIB_FUNCTION -simple_execl(const char *file, ...) -{ - va_list ap; - char **argv; - int ret; - - va_start(ap, file); - argv = vstrcollect(&ap); - va_end(ap); - if(argv == NULL) - return -1; - ret = simple_execve(file, argv, environ); - free(argv); - return ret; -} |