revert using argv0 and minor fixup

- use hardcoded "slock" instead of argv[0]
- add "slock: " to fprintf calls, where it was missing
- revert `argc--, argv++` shifting

diff --git a/slock.c b/slock.c
index a0ffed0..2aa395e 100644 (file)
--- a/slock.c
+++ b/slock.c
@@ -46,15 +46,14 @@ static Bool failure = False;
 static Bool rr;
 static int rrevbase;
 static int rrerrbase;
-static char *argv0;
 
 static void
 die(const char *errstr, ...)
 {
        va_list ap;
 
+       fputs("slock: ", stderr);
        va_start(ap, errstr);
-       fprintf(stderr, "%s: ", argv0);
        vfprintf(stderr, errstr, ap);
        va_end(ap);
        exit(1);
@@ -256,7 +255,7 @@ lockscreen(Display *dpy, int screen)
                usleep(1000);
        }
        if (!len) {
-               fprintf(stderr, "unable to grab mouse pointer for screen %d\n", screen);
+               fprintf(stderr, "slock: unable to grab mouse pointer for screen %d\n", screen);
        } else {
                for (len = 1000; len; len--) {
                        if (XGrabKeyboard(dpy, lock->root, True, GrabModeAsync, GrabModeAsync, CurrentTime) == GrabSuccess) {
@@ -266,7 +265,7 @@ lockscreen(Display *dpy, int screen)
                        }
                        usleep(1000);
                }
-               fprintf(stderr, "unable to grab keyboard for screen %d\n", screen);
+               fprintf(stderr, "slock: unable to grab keyboard for screen %d\n", screen);
        }
        /* grabbing one of the inputs failed */
        running = 0;
@@ -283,8 +282,6 @@ main(int argc, char **argv)
        Display *dpy;
        int screen;
 
-       argv0 = argv[0], argc--, argv++;
-
 #ifdef __linux__
        dontkillme();
 #endif
@@ -317,11 +314,11 @@ main(int argc, char **argv)
                return 1;
        }
 
-       if (argc >= 1 && fork() == 0) {
+       if (argc >= 2 && fork() == 0) {
                if (dpy)
                        close(ConnectionNumber(dpy));
-               execvp(argv[0], argv);
-               die("execvp %s failed: %s\n", argv[0], strerror(errno));
+               execvp(argv[1], argv+1);
+               die("execvp %s failed: %s\n", argv[1], strerror(errno));
        }
 
        /* Everything is now blank. Now wait for the correct password. */