return -1 if fork(2) fails in execprog

If fork in execprog fails and return 1 there is now
way to different between a proces witch return 1.
Thanks Marcin Cieslak <saper@saper.info> for reporting.

diff --git a/sbr/execprog.c b/sbr/execprog.c
index ce38307..f1f03bc 100644 (file)
--- a/sbr/execprog.c
+++ b/sbr/execprog.c
@@ -16,7 +16,7 @@ execprog(char *cmd, char **arg)
        case -1:
                /* fork error */
                advise("fork", "unable to");
-               return 1;
+               return -1;
 
        case 0:
                /* child */
@@ -30,7 +30,7 @@ execprog(char *cmd, char **arg)
                return pidXwait(pid, cmd);
        }
 
-       return 1;  /* NOT REACHED */
+       return -1;  /* NOT REACHED */
 }