crtxcr/adhocify
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Allow specifying negated exit status codes for --exit-with-child

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Albert S. 2020-08-15 23:19:14 +02:00
parent 519afe63d1
commit 0d0d42cb31
2 changed files with 19 additions and 1 deletions
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2
README.md
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@ -62,6 +62,8 @@ adhocify -m IN_CREATE --exit-with-child=0 -- /usr/bin/test -f awaited_file
``` ```
Keep running until the file named "awaited_file" is created in the current directory. Keep running until the file named "awaited_file" is created in the current directory.
`--exit-with-child` also supports negation, so e. g. with `--exit-with-child='!0'` adhocify would keep running as long as the child commands exits with 0.
Other tools Other tools
=========== ===========
If adhocify does not suit your needs, take a look at: If adhocify does not suit your needs, take a look at:

18
adhocify.c
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@ -69,6 +69,7 @@ bool forkbombcheck = true;
bool daemonize = false; bool daemonize = false;
bool exit_with_child = false; bool exit_with_child = false;
int awaited_child_exit_code = -1; int awaited_child_exit_code = -1;
bool negate_child_exit_code = false;
uint32_t mask = 0; uint32_t mask = 0;
char *prog = NULL; char *prog = NULL;
@ -529,6 +530,16 @@ void parse_options(int argc, char **argv)
exit_with_child = true; exit_with_child = true;
if(optarg) if(optarg)
{ {
if(*optarg == '!')
{
negate_child_exit_code = true;
++optarg;
}
if(*optarg == '\0')
{
logerror("Please specify the exit code\n");
exit(EXIT_FAILURE);
}
awaited_child_exit_code = atoi(optarg); awaited_child_exit_code = atoi(optarg);
} }
break; break;
@ -642,7 +653,12 @@ void child_handler(int signum, siginfo_t *info, void *context)
adhocify_exit_code = WEXITSTATUS(status); adhocify_exit_code = WEXITSTATUS(status);
if(awaited_child_exit_code > -1) if(awaited_child_exit_code > -1)
{ {
if(adhocify_exit_code == awaited_child_exit_code) bool must_exit = adhocify_exit_code == awaited_child_exit_code;
if(negate_child_exit_code)
{
must_exit = !must_exit;
}
if(must_exit)
{ {
logwrite("child exited with specified exit code, exiting too\n"); logwrite("child exited with specified exit code, exiting too\n");
exit(adhocify_exit_code); exit(adhocify_exit_code);