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authorRob Landley <rob@landley.net>2015-09-29 05:32:57 -0500
committerRob Landley <rob@landley.net>2015-09-29 05:32:57 -0500
commit8941e5fef58025591b7441372d486cf5de46dd39 (patch)
tree478fa4729585479682ca664c639af377cd1d5af5
parent3d9dce3b523f5e4a01189d4735c02a9b33d8c7ab (diff)
downloadtoybox-8941e5fef58025591b7441372d486cf5de46dd39.tar.gz
help_exit() tweak.
-rw-r--r--lib/lib.c8
-rw-r--r--toys/other/sysctl.c7
2 files changed, 10 insertions, 5 deletions
diff --git a/lib/lib.c b/lib/lib.c
index 9e0a3a52..d9bea891 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -56,9 +56,11 @@ void help_exit(char *msg, ...)
if (CFG_TOYBOX_HELP) show_help(stderr);
- va_start(va, msg);
- verror_msg(msg, 0, va);
- va_end(va);
+ if (msg) {
+ va_start(va, msg);
+ verror_msg(msg, 0, va);
+ va_end(va);
+ }
xexit();
}
diff --git a/toys/other/sysctl.c b/toys/other/sysctl.c
index d4ed1b0b..a123110e 100644
--- a/toys/other/sysctl.c
+++ b/toys/other/sysctl.c
@@ -19,7 +19,7 @@ config SYSCTL
-e Don't warn about unknown keys
-N Don't print key values
-n Don't print key names
- -p [FILE] Read values from FILE (default /etc/sysctl.conf)
+ -p Read values from FILE (default /etc/sysctl.conf)
-q Don't show value after write
-w Only write values (object to reading)
*/
@@ -148,5 +148,8 @@ void sysctl_main()
fclose(fp);
// Loop through arguments, displaying or assigning as appropriate
- } else for (args = toys.optargs; *args; args++) process_key(*args, 0);
+ } else {
+ if (!*toys.optargs) help_exit(0);
+ for (args = toys.optargs; *args; args++) process_key(*args, 0);
+ }
}