Fix signal handlers so they don't corrupt `errno'.

[sw-tools] / src / sw_rsh.c

diff --git a/src/sw_rsh.c b/src/sw_rsh.c
index 4f2be0d35e2d2f4330b309838e58dbfd49f10488..0406798ba312a59b92b5554345094a793fcef5d8 100644 (file)
--- a/src/sw_rsh.c
+++ b/src/sw_rsh.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
 /* -*-c-*-
  *

- * $Id: sw_rsh.c,v 1.3 1999/06/18 18:58:54 mdw Exp $
+ * $Id: sw_rsh.c,v 1.4 1999/06/24 15:51:17 mdw Exp $

  *
  * Run remote commands
  *
  *
  * Run remote commands
  *


@@ -29,6 +29,9 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: sw_rsh.c,v $
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: sw_rsh.c,v $

+ * Revision 1.4  1999/06/24 15:51:17  mdw
+ * Fix signal handlers so they don't corrupt `errno'.
+ *

  * Revision 1.3  1999/06/18 18:58:54  mdw
  * Signal handling fixes.
  *
  * Revision 1.3  1999/06/18 18:58:54  mdw
  * Signal handling fixes.
  *


@@ -632,6 +635,7 @@ done:
 
 static void sigchld(int sig)
 {
 
 static void sigchld(int sig)
 {

+  int e = errno;

 #ifdef DEBUG_SIGCHLD
   int status;
   while (waitpid(-1, &status, WNOHANG) > 0) {
 #ifdef DEBUG_SIGCHLD
   int status;
   while (waitpid(-1, &status, WNOHANG) > 0) {


@@ -648,6 +652,7 @@ static void sigchld(int sig)
   while (waitpid(-1, 0, WNOHANG) > 0)
     ;
 #endif
   while (waitpid(-1, 0, WNOHANG) > 0)
     ;
 #endif

+  errno = e;

 }
 
 /* --- @swrsh@ --- *
 }
 
 /* --- @swrsh@ --- *