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-rw-r--r--src/process.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/process.c b/src/process.c
index 3fc866f..1e2583b 100644
--- a/src/process.c
+++ b/src/process.c
@@ -40,12 +40,20 @@ static int wait_for_child(pid_t pid, int *ec)
return ret;
}
- if (WIFEXITED(status))
+ /* The child process reports the lowest 8 bits of its exit code, which
+ * are treated as an unsigned integer on Linux.
+ *
+ * If it was killed by a signal, indicate that by negating the signal
+ * number. */
+
+ if (WIFEXITED(status)) {
*ec = WEXITSTATUS(status);
- else if (WIFSIGNALED(status))
- *ec = status; /* Same as $?. */
- else
- *ec = -1;
+ } else if (WIFSIGNALED(status)) {
+ *ec = -WTERMSIG(status);
+ } else {
+ log_err("This shouldn't happen: %d\n", status);
+ *ec = 1;
+ }
return 0;
}