ubase

suckless linux base utils
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commit bb5806e41201fe5995620c3cabddf3f3c3ddafce
parent cbf2cfa79f19b402b8c27ba6dd261279511f48ed
Author: sin <sin@2f30.org>
Date:   Thu Oct 16 11:40:57 +0100

We cannot use eprintf() without first initializing argv0

Diffstat:
last.c | 18+++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/last.c b/last.c @@ -12,11 +12,10 @@ #include "config.h" #include "util.h" -void +static void usage(void) { - fputs("last [user]\n", stderr); - exit(1); + eprintf("usage: %s [user]\n", argv0); } int @@ -27,18 +26,23 @@ main(int argc, char **argv) char *user, *file, *prog; time_t t; + ARGBEGIN { + default: + usage(); + } ARGEND; + switch (argc) { - case 1: + case 0: user = NULL; break; - case 2: - user = argv[1]; + case 1: + user = argv[0]; break; default: usage(); } - prog = basename(argv[0]); + prog = basename(argv0); file = (!strcmp(prog, "last")) ? WTMP_PATH : BTMP_PATH; if ((fp = fopen(file, "r")) == NULL) eprintf("fopen %s:", file);