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Improve vipw error report when editor fails

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* src/vipw.c: After waitpid(), use errno only if waitpid returned
	-1. Debian#688260
	* src/vipw.c: Likewise for system().
This commit is contained in:
Nicolas François
2013-08-25 16:27:58 +02:00
parent d409947e9a
commit 5e87ff0615
2 changed files with 32 additions and 7 deletions
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6
ChangeLog
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@@ -1,3 +1,9 @@
2013-08-25 Nicolas François <nicolas.francois@centraliens.net>
* src/vipw.c: After waitpid(), use errno only if waitpid returned
-1. Debian#688260
* src/vipw.c: Likewise for system().
2013-08-23 victory <victory.deb@gmail.com>
* po/ja.po: Updated to 558t

33
src/vipw.c
View File

@@ -180,7 +180,10 @@ static void vipwexit (const char *msg, int syserr, int ret)
if (0 != syserr) {
fprintf (stderr, ": %s", strerror (err));
}
(void) fputs ("\n", stderr);
if ( (NULL != msg)
|| (0 != syserr)) {
(void) fputs ("\n", stderr);
}
if (!quiet) {
fprintf (stdout, _("%s: %s is unchanged\n"), Prog,
filename);
@@ -297,14 +300,25 @@ vipwedit (const char *file, int (*file_lock) (void), int (*file_unlock) (void))
/* use the system() call to invoke the editor so that it accepts
command line args in the EDITOR and VISUAL environment vars */
char *buf;
int status;
buf = (char *) malloc (strlen (editor) + strlen (fileedit) + 2);
snprintf (buf, strlen (editor) + strlen (fileedit) + 2,
"%s %s", editor, fileedit);
if (system (buf) != 0) {
fprintf (stderr, "%s: %s: %s\n", Prog, editor,
"%s %s", editor, fileedit);
status = system (buf);
if (-1 == status) {
fprintf (stderr, _("%s: %s: %s\n"), Prog, editor,
strerror (errno));
exit (1);
} else if ( WIFEXITED (status)
&& (WEXITSTATUS (status) != 0)) {
fprintf (stderr, _("%s: %s returned with status %d\n"),
Prog, editor, WEXITSTATUS (status));
exit (WEXITSTATUS (status));
} else if (WIFSIGNALED (status)) {
fprintf (stderr, _("%s: %s killed by signal %d\n"),
Prog, editor, WTERMSIG (status));
exit (1);
} else {
exit (0);
}
@@ -323,10 +337,15 @@ vipwedit (const char *file, int (*file_lock) (void), int (*file_unlock) (void))
}
}
if ( (-1 == pid)
|| (WIFEXITED (status) == 0)
|| (WEXITSTATUS (status) != 0)) {
if (-1 == pid) {
vipwexit (editor, 1, 1);
} else if ( WIFEXITED (status)
&& (WEXITSTATUS (status) != 0)) {
vipwexit (NULL, 0, WEXITSTATUS (status));
} else if (WIFSIGNALED (status)) {
fprintf (stderr, _("%s: %s killed by signal %d\n"),
Prog, editor, WTERMSIG(status));
vipwexit (NULL, 0, 1);
}
if (stat (fileedit, &st2) != 0) {