diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/run_parts.c | 40 |
1 files changed, 23 insertions, 17 deletions
diff --git a/libbb/run_parts.c b/libbb/run_parts.c index 5864566..1cd13f2 100644 --- a/libbb/run_parts.c +++ b/libbb/run_parts.c @@ -83,31 +83,37 @@ extern int run_parts(char **args, const unsigned char test_mode) if (test_mode & 1) { puts(filename); } else { - /* exec_errno is common vfork variable */ - volatile int exec_errno = 0; + pid_t pid, wpid; int result; - int pid; if ((pid = vfork()) < 0) { bb_perror_msg_and_die("failed to fork"); - } else if (!pid) { - args[0] = filename; + } else if (pid==0) { execv(filename, args); - exec_errno = errno; _exit(1); } - waitpid(pid, &result, 0); - if(exec_errno) { - errno = exec_errno; - bb_perror_msg_and_die("failed to exec %s", filename); - } - if (WIFEXITED(result) && WEXITSTATUS(result)) { - bb_perror_msg("%s exited with return code %d", filename, WEXITSTATUS(result)); - exitstatus = 1; - } else if (WIFSIGNALED(result)) { - bb_perror_msg("%s exited because of uncaught signal %d", filename, WTERMSIG(result)); - exitstatus = 1; + /* Wait for the child process to exit. Since we use vfork + * we shouldn't actually have to do any waiting... */ + wpid = wait(&result); + while (wpid > 0) { + /* Find out who died, make sure it is the right process */ + if (pid == wpid) { + if (WIFEXITED(result) && WEXITSTATUS(result)) { + bb_perror_msg("%s exited with return code %d", filename, WEXITSTATUS(result)); + exitstatus = 1; + } else if (WIFSIGNALED(result) && WIFSIGNALED(result)) { + int sig; + sig = WTERMSIG(result); + bb_perror_msg("%s exited because of uncaught signal %d (%s)", + filename, sig, u_signal_names(0, &sig, 1)); + exitstatus = 1; + } + break; + } else { + /* Just in case some _other_ random child process exits */ + wpid = wait(&result); + } } } } |