Introduce xfork() and make commands use it, and make some WEXITSTATUS() use WIFEXITED() and WTERMSIG()+127.

2 files changed, 10 insertions, 0 deletions

diff --git a/lib/lib.h b/lib/lib.h
index 09af2837..3ca631b6 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -91,6 +91,7 @@ void xprintf(char *format, ...);
 void xputs(char *s);
 void xputc(char c);
 void xflush(void);
+pid_t xfork(void);
 void xexec_optargs(int skip);
 void xexec(char **argv);
 void xaccess(char *path, int flags);
diff --git a/lib/xwrap.c b/lib/xwrap.c
index 69682f65..3e146fb7 100644
--- a/lib/xwrap.c
+++ b/lib/xwrap.c
@@ -113,6 +113,15 @@ void xflush(void)
   if (fflush(stdout) || ferror(stdout)) perror_exit("write");;
 }
 
+pid_t xfork(void)
+{
+  pid_t pid = fork();
+
+  if (pid < 0) perror_exit("fork");
+
+  return pid;
+}
+
 // Call xexec with a chunk of optargs, starting at skip. (You can't just
 // call xexec() directly because toy_init() frees optargs.)
 void xexec_optargs(int skip)