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Diffstat (limited to 'alsa-utils/alsactl/init_utils_run.c')
-rw-r--r--alsa-utils/alsactl/init_utils_run.c247
1 files changed, 0 insertions, 247 deletions
diff --git a/alsa-utils/alsactl/init_utils_run.c b/alsa-utils/alsactl/init_utils_run.c
deleted file mode 100644
index dde490b..0000000
--- a/alsa-utils/alsactl/init_utils_run.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * Copyright (C) 2004-2005 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program 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 version 2 of the License.
- *
- * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- */
-
-#define MY_MAX(a,b) ((a) > (b) ? (a) : (b))
-
-#define READ_END 0
-#define WRITE_END 1
-
-static
-int run_program1(struct space *space,
- const char *command0, char *result,
- size_t ressize, size_t *reslen, int log);
-
-static
-int run_program0(struct space *space,
- const char *command0, char *result,
- size_t ressize, size_t *reslen, int log)
-{
- int retval = 0;
- int status;
- int outpipe[2] = {-1, -1};
- int errpipe[2] = {-1, -1};
- pid_t pid;
- char arg[PATH_SIZE];
- char program[PATH_SIZE];
- char *argv[(sizeof(arg) / 2) + 1];
- int devnull;
- int i;
-
- /* build argv from comand */
- strlcpy(arg, command0, sizeof(arg));
- i = 0;
- if (strchr(arg, ' ') != NULL) {
- char *pos = arg;
-
- while (pos != NULL) {
- if (pos[0] == '\'') {
- /* don't separate if in apostrophes */
- pos++;
- argv[i] = strsep(&pos, "\'");
- while (pos != NULL && pos[0] == ' ')
- pos++;
- } else {
- argv[i] = strsep(&pos, " ");
- }
- dbg("arg[%i] '%s'", i, argv[i]);
- i++;
- }
- argv[i] = NULL;
- } else {
- argv[0] = arg;
- argv[1] = NULL;
- }
- info("'%s'", command0);
-
- /* prepare pipes from child to parent */
- if (result || log) {
- if (pipe(outpipe) != 0) {
- Perror(space, "pipe failed: %s", strerror(errno));
- return -1;
- }
- }
- if (log) {
- if (pipe(errpipe) != 0) {
- Perror(space, "pipe failed: %s", strerror(errno));
- return -1;
- }
- }
-
- /* allow programs in /lib/alsa called without the path */
- if (strchr(argv[0], '/') == NULL) {
- strlcpy(program, "/lib/alsa/", sizeof(program));
- strlcat(program, argv[0], sizeof(program));
- argv[0] = program;
- }
-
- pid = fork();
- switch(pid) {
- case 0:
- /* child closes parent ends of pipes */
- if (outpipe[READ_END] > 0)
- close(outpipe[READ_END]);
- if (errpipe[READ_END] > 0)
- close(errpipe[READ_END]);
-
- /* discard child output or connect to pipe */
- devnull = open("/dev/null", O_RDWR);
- if (devnull > 0) {
- dup2(devnull, STDIN_FILENO);
- if (outpipe[WRITE_END] < 0)
- dup2(devnull, STDOUT_FILENO);
- if (errpipe[WRITE_END] < 0)
- dup2(devnull, STDERR_FILENO);
- close(devnull);
- } else
- Perror(space, "open /dev/null failed: %s", strerror(errno));
- if (outpipe[WRITE_END] > 0) {
- dup2(outpipe[WRITE_END], STDOUT_FILENO);
- close(outpipe[WRITE_END]);
- }
- if (errpipe[WRITE_END] > 0) {
- dup2(errpipe[WRITE_END], STDERR_FILENO);
- close(errpipe[WRITE_END]);
- }
- execv(argv[0], argv);
-
- /* we should never reach this */
- Perror(space, "exec of program '%s' failed", argv[0]);
- _exit(1);
- case -1:
- Perror(space, "fork of '%s' failed: %s", argv[0], strerror(errno));
- return -1;
- default:
- /* read from child if requested */
- if (outpipe[READ_END] > 0 || errpipe[READ_END] > 0) {
- ssize_t count;
- size_t respos = 0;
-
- /* parent closes child ends of pipes */
- if (outpipe[WRITE_END] > 0)
- close(outpipe[WRITE_END]);
- if (errpipe[WRITE_END] > 0)
- close(errpipe[WRITE_END]);
-
- /* read child output */
- while (outpipe[READ_END] > 0 || errpipe[READ_END] > 0) {
- int fdcount;
- fd_set readfds;
-
- FD_ZERO(&readfds);
- if (outpipe[READ_END] > 0)
- FD_SET(outpipe[READ_END], &readfds);
- if (errpipe[READ_END] > 0)
- FD_SET(errpipe[READ_END], &readfds);
- fdcount = select(MY_MAX(outpipe[READ_END], errpipe[READ_END])+1, &readfds, NULL, NULL, NULL);
- if (fdcount < 0) {
- if (errno == EINTR)
- continue;
- retval = -1;
- break;
- }
-
- /* get stdout */
- if (outpipe[READ_END] > 0 && FD_ISSET(outpipe[READ_END], &readfds)) {
- char inbuf[1024];
- char *pos;
- char *line;
-
- count = read(outpipe[READ_END], inbuf, sizeof(inbuf)-1);
- if (count <= 0) {
- close(outpipe[READ_END]);
- outpipe[READ_END] = -1;
- if (count < 0) {
- Perror(space, "stdin read failed: %s", strerror(errno));
- retval = -1;
- }
- continue;
- }
- inbuf[count] = '\0';
-
- /* store result for rule processing */
- if (result) {
- if (respos + count < ressize) {
- memcpy(&result[respos], inbuf, count);
- respos += count;
- } else {
- Perror(space, "ressize %ld too short", (long)ressize);
- retval = -1;
- }
- }
- pos = inbuf;
- while ((line = strsep(&pos, "\n")))
- if (pos || line[0] != '\0')
- info("'%s' (stdout) '%s'", argv[0], line);
- }
-
- /* get stderr */
- if (errpipe[READ_END] > 0 && FD_ISSET(errpipe[READ_END], &readfds)) {
- char errbuf[1024];
- char *pos;
- char *line;
-
- count = read(errpipe[READ_END], errbuf, sizeof(errbuf)-1);
- if (count <= 0) {
- close(errpipe[READ_END]);
- errpipe[READ_END] = -1;
- if (count < 0)
- Perror(space, "stderr read failed: %s", strerror(errno));
- continue;
- }
- errbuf[count] = '\0';
- pos = errbuf;
- while ((line = strsep(&pos, "\n")))
- if (pos || line[0] != '\0')
- info("'%s' (stderr) '%s'", argv[0], line);
- }
- }
- if (outpipe[READ_END] > 0)
- close(outpipe[READ_END]);
- if (errpipe[READ_END] > 0)
- close(errpipe[READ_END]);
-
- /* return the childs stdout string */
- if (result) {
- result[respos] = '\0';
- dbg("result='%s'", result);
- if (reslen)
- *reslen = respos;
- }
- }
- waitpid(pid, &status, 0);
- if (WIFEXITED(status)) {
- info("'%s' returned with status %i", argv[0], WEXITSTATUS(status));
- if (WEXITSTATUS(status) != 0)
- retval = -1;
- } else {
- Perror(space, "'%s' abnormal exit", argv[0]);
- retval = -1;
- }
- }
-
- return retval;
-}
-
-static
-int run_program(struct space *space, const char *command0, char *result,
- size_t ressize, size_t *reslen, int log)
-{
- if (command0[0] == '_' && command0[1] == '_')
- return run_program1(space, command0, result, ressize, reslen, log);
- return run_program0(space, command0, result, ressize, reslen, log);
-}
generated by cgit v1.1 at 2025-09-21 22:10:04 +0000