If we do this then these usage functions also need to be marked __dead.
On Sat, Sep 27, 2014 at 07:10:01PM +0200, Fritjof Bornebusch wrote:
> Hi,
>
> after usage() was called, there is no where you can go.
>
> fritjof
>
>
> Index: ci.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/ci.c,v
> retrieving revision 1.217
> diff -u -p -r1.217 ci.c
> --- ci.c 19 May 2014 19:42:24 -0000 1.217
> +++ ci.c 2 Jun 2014 22:18:25 -0000
> @@ -97,6 +97,8 @@ checkin_usage(void)
> " [-j[rev]] [-k[rev]] [-l[rev]] [-M[rev]] [-mmsg]\n"
> " [-Nsymbol] [-nsymbol] [-r[rev]] [-sstate] [-t[str]]\n"
> " [-u[rev]] [-wusername] [-xsuffixes] [-ztz] file ...\n");
> +
> + exit(1);
> }
>
> /*
> @@ -221,7 +223,6 @@ checkin_main(int argc, char **argv)
> break;
> default:
> (usage)();
> - exit(1);
> }
> }
>
> @@ -231,7 +232,6 @@ checkin_main(int argc, char **argv)
> if (argc == 0) {
> warnx("no input file");
> (usage)();
> - exit(1);
> }
>
> if ((pb.username = getlogin()) == NULL)
> Index: co.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/co.c,v
> retrieving revision 1.117
> diff -u -p -r1.117 co.c
> --- co.c 16 Apr 2013 20:24:45 -0000 1.117
> +++ co.c 2 Jun 2014 22:19:38 -0000
> @@ -79,7 +79,6 @@ checkout_main(int argc, char **argv)
> if (RCS_KWEXP_INVAL(kflag)) {
> warnx("invalid RCS keyword substitution mode");
> (usage)();
> - exit(1);
> }
> break;
> case 'l':
> @@ -141,7 +140,6 @@ checkout_main(int argc, char **argv)
> break;
> default:
> (usage)();
> - exit(1);
> }
> }
>
> @@ -151,7 +149,6 @@ checkout_main(int argc, char **argv)
> if (argc == 0) {
> warnx("no input file");
> (usage)();
> - exit (1);
> }
>
> if ((username = getlogin()) == NULL)
> @@ -229,6 +226,8 @@ checkout_usage(void)
> "usage: co [-TV] [-ddate] [-f[rev]] [-I[rev]] [-kmode] [-l[rev]]\n"
> " [-M[rev]] [-p[rev]] [-q[rev]] [-r[rev]] [-sstate]\n"
> " [-u[rev]] [-w[user]] [-xsuffixes] [-ztz] file ...\n");
> +
> + exit(1);
> }
>
> /*
> Index: merge.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/merge.c,v
> retrieving revision 1.7
> diff -u -p -r1.7 merge.c
> --- merge.c 23 Jul 2010 21:46:05 -0000 1.7
> +++ merge.c 2 Jun 2014 22:20:55 -0000
> @@ -77,7 +77,6 @@ merge_main(int argc, char **argv)
> exit(0);
> default:
> (usage)();
> - exit(D_ERROR);
> }
> }
> argc -= optind;
> @@ -86,7 +85,6 @@ merge_main(int argc, char **argv)
> if (argc != 3) {
> warnx("%s arguments", (argc < 3) ? "not enough" : "too many");
> (usage)();
> - exit(D_ERROR);
> }
>
> for (; labels < 3; labels++)
> @@ -118,4 +116,6 @@ merge_usage(void)
> {
> (void)fprintf(stderr,
> "usage: merge [-EepqV] [-L label] file1 file2 file3\n");
> +
> + exit(D_ERROR);
> }
> Index: rcsclean.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/rcsclean.c,v
> retrieving revision 1.52
> diff -u -p -r1.52 rcsclean.c
> --- rcsclean.c 28 Jul 2010 09:07:11 -0000 1.52
> +++ rcsclean.c 2 Jun 2014 22:22:05 -0000
> @@ -60,7 +60,6 @@ rcsclean_main(int argc, char **argv)
> if (RCS_KWEXP_INVAL(kflag)) {
> warnx("invalid RCS keyword substitution mode");
> (usage)();
> - exit(1);
> }
> break;
> case 'n':
> @@ -90,7 +89,6 @@ rcsclean_main(int argc, char **argv)
> break;
> default:
> (usage)();
> - exit(1);
> }
> }
>
> @@ -104,7 +102,6 @@ rcsclean_main(int argc, char **argv)
> if ((dirp = opendir(".")) == NULL) {
> warn("opendir");
> (usage)();
> - exit(1);
> }
>
> while ((dp = readdir(dirp)) != NULL) {
> @@ -127,6 +124,8 @@ rcsclean_usage(void)
> fprintf(stderr,
> "usage: rcsclean [-TV] [-kmode] [-n[rev]] [-q[rev]] [-r[rev]]\n"
> " [-u[rev]] [-xsuffixes] [-ztz] [file ...]\n");
> +
> + exit(1);
> }
>
> static void
> Index: rcsdiff.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/rcsdiff.c,v
> retrieving revision 1.79
> diff -u -p -r1.79 rcsdiff.c
> --- rcsdiff.c 16 Apr 2013 20:24:45 -0000 1.79
> +++ rcsdiff.c 2 Jun 2014 22:23:08 -0000
> @@ -117,7 +117,6 @@ rcsdiff_main(int argc, char **argv)
> if (RCS_KWEXP_INVAL(kflag)) {
> warnx("invalid RCS keyword substitution mode");
> (usage)();
> - exit(D_ERROR);
> }
> break;
> case 'n':
> @@ -184,7 +183,6 @@ rcsdiff_main(int argc, char **argv)
> break;
> default:
> (usage)();
> - exit(D_ERROR);
> }
> }
>
> @@ -194,7 +192,6 @@ rcsdiff_main(int argc, char **argv)
> if (argc == 0) {
> warnx("no input file");
> (usage)();
> - exit(D_ERROR);
> }
>
> if (diff_ignore_pats != NULL) {
> @@ -273,6 +270,8 @@ rcsdiff_usage(void)
> fprintf(stderr,
> "usage: rcsdiff [-cnquV] [-kmode] [-rrev] [-xsuffixes] [-ztz]\n"
> " [diff_options] file ...\n");
> +
> + exit(D_ERROR);
> }
>
> static int
> Index: rcsmerge.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/rcsmerge.c,v
> retrieving revision 1.52
> diff -u -p -r1.52 rcsmerge.c
> --- rcsmerge.c 23 Jul 2010 21:46:05 -0000 1.52
> +++ rcsmerge.c 2 Jun 2014 22:24:24 -0000
> @@ -68,7 +68,6 @@ rcsmerge_main(int argc, char **argv)
> if (RCS_KWEXP_INVAL(kflag)) {
> warnx("invalid RCS keyword substitution mode");
> (usage)();
> - exit(D_ERROR);
> }
> break;
> case 'p':
> @@ -100,7 +99,6 @@ rcsmerge_main(int argc, char **argv)
> break;
> default:
> (usage)();
> - exit(D_ERROR);
> }
> }
>
> @@ -110,13 +108,11 @@ rcsmerge_main(int argc, char **argv)
> if (rev_str1 == NULL) {
> warnx("no base revision number given");
> (usage)();
> - exit(D_ERROR);
> }
>
> if (argc < 1) {
> warnx("no input file");
> (usage)();
> - exit(D_ERROR);
> }
>
> if (argc > 2 || (argc == 2 && argv[1] != NULL))
> @@ -193,4 +189,6 @@ rcsmerge_usage(void)
> fprintf(stderr,
> "usage: rcsmerge [-EV] [-kmode] [-p[rev]] [-q[rev]]\n"
> " [-xsuffixes] [-ztz] -rrev file ...\n");
> +
> + exit(D_ERROR);
> }
> Index: rlog.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/rcs/rlog.c,v
> retrieving revision 1.67
> diff -u -p -r1.67 rlog.c
> --- rlog.c 7 Jan 2014 14:08:16 -0000 1.67
> +++ rlog.c 2 Jun 2014 22:25:53 -0000
> @@ -65,6 +65,8 @@ rlog_usage(void)
> "usage: rlog [-bhLNRtV] [-ddates] [-l[lockers]] [-r[revs]]\n"
> " [-sstates] [-w[logins]] [-xsuffixes]\n"
> " [-ztz] file ...\n");
> +
> + exit(1);
> }
>
> int
> @@ -135,7 +137,6 @@ rlog_main(int argc, char **argv)
> break;
> default:
> (usage());
> - exit(1);
> }
> }
>
> @@ -145,7 +146,6 @@ rlog_main(int argc, char **argv)
> if (argc == 0) {
> warnx("no input file");
> (usage)();
> - exit(1);
> }
>
> if (hflag == 1 && tflag == 1) {
