extern/ctpv
1
0
Fork 0
mirror of https://github.com/NikitaIvanovV/ctpv.git synced 2025-08-13 08:37:14 +02:00
Code Issues Packages Projects Releases Wiki Activity

Print error if exit code is not 127

Browse Source
This commit is contained in:
Nikita Ivanov
2022-05-24 05:46:34 +05:00
parent f37e3a1885
commit 82a82e4a61
3 changed files with 49 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
utils.c
View File

@ -8,16 +8,28 @@
char *program;
int spawn_redirect(const void *arg)
{
int **fds = (int **)arg;
int *pipe = fds[0];
int *fd = fds[1];
ERRCHK_RET(close(pipe[0]) == -1, FUNCFAILED("close"), ERRNOS);
ERRCHK_RET(dup2(pipe[1], *fd) == -1, FUNCFAILED("dup2"), ERRNOS);
return OK;
}
/*
* Call command
*
* If cpid is NULL, wait for the command to finish executing;
* otherwise store pid in cpid
*
* fd is a NULL-terminated array of pairs of file descriptors
* to pass to dup2()
* cfunc is a function to call when child process is created
*/
int spawn(char *args[], pid_t *cpid, int *exitcode, int *fds[2])
int spawn(char *args[], pid_t *cpid, int *exitcode, int (*cfunc)(const void *),
const void *carg)
{
if (exitcode)
*exitcode = -1;
@ -27,15 +39,8 @@ int spawn(char *args[], pid_t *cpid, int *exitcode, int *fds[2])
/* Child process */
if (pid == 0) {
if (fds) {
while (*fds) {
if (dup2((*fds)[0], (*fds)[1]) == -1) {
print_errorf("dup2() failed: %s", strerror(errno));
exit(EXIT_FAILURE);
}
fds = &fds[1];
}
}
if (cfunc && (cfunc(carg) != OK))
exit(EXIT_FAILURE);
execvp(args[0], args);
PRINTINTERR(FUNCFAILED("exec"), ERRNOS);