Use sysexits.h for better exit-codes

[mmh] / uip / mhparam.c

diff --git a/uip/mhparam.c b/uip/mhparam.c
index 1d95377..6ac0a22 100644 (file)
--- a/uip/mhparam.c
+++ b/uip/mhparam.c
@@ -10,6 +10,7 @@
 */
 
 #include <h/mh.h>
+#include <sysexits.h>
 
 static struct swit switches[] = {
 #define COMPSW  0
@@ -140,18 +141,17 @@ main(int argc, char **argv)
                        switch (smatch(++cp, switches)) {
                        case AMBIGSW:
                                ambigsw(cp, switches);
-                               /*sysexits.h EX_USAGE*/
-                               exit(1);
+                               exit(EX_USAGE);
                        case UNKWNSW:
-                               adios(NULL, "-%s unknown", cp);
+                               adios(EX_USAGE, NULL, "-%s unknown", cp);
 
                        case HELPSW:
                                snprintf(buf, sizeof(buf), "%s [profile-components] [switches]", invo_name);
                                print_help(buf, switches, 1);
-                               exit(0);
+                               exit(argc == 2 ? EX_OK : EX_USAGE);
                        case VERSIONSW:
                                print_version(invo_name);
-                               exit(0);
+                               exit(argc == 2 ? EX_OK : EX_USAGE);
 
                        case COMPSW:
                                components = 1;