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Add the output to the log for external processes that have failed

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This commit is contained in:
Marc Di Luzio 2019-02-21 20:50:04 +00:00
parent c215626ccd
commit b6da948ca2
1 changed files with 7 additions and 2 deletions
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9
daemon/external-helper.c
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@ -50,6 +50,7 @@ int run_external_process(const char *const *exec_args, char buffer[EXTERNAL_BUFF
pid_t p;
int status = 0;
int pipes[2];
char internal[EXTERNAL_BUFFER_MAX] = { 0 };
if (pipe(pipes) == -1) {
LOG_ERROR("Could not create pipe: %s!\n", strerror(errno));
@ -116,7 +117,7 @@ int run_external_process(const char *const *exec_args, char buffer[EXTERNAL_BUFF
}
close(pipes[1]);
if (buffer && read(pipes[0], buffer, EXTERNAL_BUFFER_MAX) < 0) {
if (read(pipes[0], internal, EXTERNAL_BUFFER_MAX) < 0) {
LOG_ERROR("Failed to read from process %s: %s\n", exec_args[0], strerror(errno));
return -1;
}
@ -130,9 +131,13 @@ int run_external_process(const char *const *exec_args, char buffer[EXTERNAL_BUFF
if (!WIFEXITED(status)) {
LOG_ERROR("Child process '%s' exited abnormally\n", exec_args[0]);
} else if (WEXITSTATUS(status) != 0) {
LOG_ERROR("External process failed\n");
LOG_ERROR("External process failed with exit code %u\n", WEXITSTATUS(status));
LOG_ERROR("Output was: %s\n", buffer ? buffer : internal);
return -1;
}
if (buffer)
memcpy(buffer, internal, EXTERNAL_BUFFER_MAX);
return 0;
}