zcip: make it work on NOMMU (+ improve NOMMU support machinery)
fsck: fix bad English in a comment
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index 14bd62a..7f870ac 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -192,9 +192,16 @@
{
int status;
- if (pid == -1 || waitpid(pid, &status, 0) == -1) return -1;
- if (WIFEXITED(status)) return WEXITSTATUS(status);
- if (WIFSIGNALED(status)) return WTERMSIG(status);
+ if (pid <= 0) {
+ errno = ECHILD;
+ return -1;
+ }
+ if (waitpid(pid, &status, 0) == -1)
+ return -1;
+ if (WIFEXITED(status))
+ return WEXITSTATUS(status);
+ if (WIFSIGNALED(status))
+ return WTERMSIG(status) + 10000;
return 0;
}