Author: pstef
Date: Sat Jun 20 06:20:00 2020
New Revision: 362430
URL: https://svnweb.freebsd.org/changeset/base/362430

Log:
  Make vipw error message less cryptic
  
  Unable to find an editor, vipw would give this error:
  # env EDITOR=fnord vipw
  vipw: pw_edit(): No such file or directory
  
  vigr or crontab do better:
  # env EDITOR=fnord crontab -e
  crontab: no crontab for root - using an empty one
  crontab: fnord: No such file or directory
  crontab: "fnord" exited with status 1
  
  After this change, vipw behaves more like vigr or crontab:
  # env EDITOR=fnord vipw
  vipw: fnord: No such file or directory
  vipw: "fnord" exited with status 1
  
  Reviewed by:  rpokala, emaste
  MFC after:    1 week
  Differential Revision:        https://reviews.freebsd.org/D25369

Modified:
  head/lib/libutil/pw_util.c

Modified: head/lib/libutil/pw_util.c
==============================================================================
--- head/lib/libutil/pw_util.c  Sat Jun 20 06:10:42 2020        (r362429)
+++ head/lib/libutil/pw_util.c  Sat Jun 20 06:20:00 2020        (r362430)
@@ -308,12 +308,13 @@ pw_edit(int notsetuid)
                sigaction(SIGQUIT, &sa_quit, NULL);
                sigprocmask(SIG_SETMASK, &oldsigset, NULL);
                if (notsetuid) {
-                       (void)setgid(getgid());
-                       (void)setuid(getuid());
+                       if (setgid(getgid()) == -1)
+                               err(1, "setgid");
+                       if (setuid(getuid()) == -1)
+                               err(1, "setuid");
                }
-               errno = 0;
                execlp(editor, editor, tempname, (char *)NULL);
-               _exit(errno);
+               err(1, "%s", editor);
        default:
                /* parent */
                break;
@@ -327,7 +328,9 @@ pw_edit(int notsetuid)
                        break;
                } else if (WIFSTOPPED(pstat)) {
                        raise(WSTOPSIG(pstat));
-               } else if (WIFEXITED(pstat) && WEXITSTATUS(pstat) == 0) {
+               } else if (WIFEXITED(pstat)) {
+                       if (WEXITSTATUS(pstat) != 0)
+                               errx(1, "\"%s\" exited with status %d", editor, 
WEXITSTATUS(pstat));
                        editpid = -1;
                        break;
                } else {
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