From a2cc93ec7fa15eed4d3a39998adff641c15dca4f Mon Sep 17 00:00:00 2001 From: Alfonso Gregory Date: Fri, 7 Jul 2023 10:39:23 -0600 Subject: [PATCH] Mark usage function as __dead2 in programs where it does not return In most cases, usage does not return, so mark them as __dead2. For the cases where they do return, they have not been marked __dead2. Reviewed by: imp Pull Request: https://github.com/freebsd/freebsd-src/pull/735 --- usr.sbin/pnfsdscopymr/pnfsdscopymr.c | 2 +- usr.sbin/pnfsdsfile/pnfsdsfile.c | 2 +- usr.sbin/pnfsdskill/pnfsdskill.c | 2 +- usr.sbin/quotaon/quotaon.c | 2 +- usr.sbin/repquota/repquota.c | 2 +- usr.sbin/rip6query/rip6query.c | 7 +++---- usr.sbin/rtprio/rtprio.c | 2 +- usr.sbin/rwhod/rwhod.c | 2 +- usr.sbin/setfib/setfib.c | 2 +- usr.sbin/spray/spray.c | 2 +- usr.sbin/tcpdrop/tcpdrop.c | 2 +- 11 files changed, 13 insertions(+), 14 deletions(-) diff --git a/usr.sbin/pnfsdscopymr/pnfsdscopymr.c b/usr.sbin/pnfsdscopymr/pnfsdscopymr.c index 33dcd302ef7..7a6eb298fa8 100644 --- a/usr.sbin/pnfsdscopymr/pnfsdscopymr.c +++ b/usr.sbin/pnfsdscopymr/pnfsdscopymr.c @@ -53,7 +53,7 @@ __FBSDID("$FreeBSD$"); #include #include -static void usage(void); +static void usage(void) __dead2; static struct option longopts[] = { { "migrate", required_argument, NULL, 'm' }, diff --git a/usr.sbin/pnfsdsfile/pnfsdsfile.c b/usr.sbin/pnfsdsfile/pnfsdsfile.c index ca17586dd3b..7669f1f29b9 100644 --- a/usr.sbin/pnfsdsfile/pnfsdsfile.c +++ b/usr.sbin/pnfsdsfile/pnfsdsfile.c @@ -46,7 +46,7 @@ __FBSDID("$FreeBSD$"); #include #include -static void usage(void); +static void usage(void) __dead2; static struct option longopts[] = { { "changeds", required_argument, NULL, 'c' }, diff --git a/usr.sbin/pnfsdskill/pnfsdskill.c b/usr.sbin/pnfsdskill/pnfsdskill.c index dcca4a17b62..878ca584d14 100644 --- a/usr.sbin/pnfsdskill/pnfsdskill.c +++ b/usr.sbin/pnfsdskill/pnfsdskill.c @@ -43,7 +43,7 @@ __FBSDID("$FreeBSD$"); #include #include -static void usage(void); +static void usage(void) __dead2; static struct option longopts[] = { { "force", no_argument, NULL, 'f' }, diff --git a/usr.sbin/quotaon/quotaon.c b/usr.sbin/quotaon/quotaon.c index f5340c6b44c..224da3b2032 100644 --- a/usr.sbin/quotaon/quotaon.c +++ b/usr.sbin/quotaon/quotaon.c @@ -70,7 +70,7 @@ static int vflag; /* verbose */ static int oneof(char *, char *[], int); static int quotaonoff(struct fstab *fs, int, int); -static void usage(void); +static void usage(void) __dead2; int main(int argc, char **argv) diff --git a/usr.sbin/repquota/repquota.c b/usr.sbin/repquota/repquota.c index 23abcca9375..9fc8829ad1b 100644 --- a/usr.sbin/repquota/repquota.c +++ b/usr.sbin/repquota/repquota.c @@ -104,7 +104,7 @@ int oneof(char *, char *[], int); int repquota(struct fstab *, int); char *timeprt(time_t); static void prthumanval(int64_t bytes); -static void usage(void); +static void usage(void) __dead2; int main(int argc, char *argv[]) diff --git a/usr.sbin/rip6query/rip6query.c b/usr.sbin/rip6query/rip6query.c index b3d74596596..549e05c4bae 100644 --- a/usr.sbin/rip6query/rip6query.c +++ b/usr.sbin/rip6query/rip6query.c @@ -62,7 +62,7 @@ static struct rip6 *ripbuf; #define RIPSIZE(n) (sizeof(struct rip6) + (n-1) * sizeof(struct netinfo6)) int main(int, char **); -static void usage(void); +static void usage(void) __dead2; static const char *sa_n2a(struct sockaddr *); static const char *inet6_n2a(struct in6_addr *); @@ -90,7 +90,6 @@ main(int argc, char *argv[]) break; default: usage(); - exit(1); /*NOTREACHED*/ } } @@ -99,7 +98,6 @@ main(int argc, char *argv[]) if (argc != 1) { usage(); - exit(1); } if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) { @@ -168,13 +166,14 @@ main(int argc, char *argv[]) } } while (len == RIPSIZE(24)); - exit(0); + return 0; } static void usage(void) { fprintf(stderr, "usage: rip6query [-I iface] address\n"); + exit(1); } /* getnameinfo() is preferred as we may be able to show ifindex as ifname */ diff --git a/usr.sbin/rtprio/rtprio.c b/usr.sbin/rtprio/rtprio.c index 9ce74b5547a..f8da2cc9629 100644 --- a/usr.sbin/rtprio/rtprio.c +++ b/usr.sbin/rtprio/rtprio.c @@ -49,7 +49,7 @@ __FBSDID("$FreeBSD$"); #include static int parseint(const char *, const char *); -static void usage(void); +static void usage(void) __dead2; int main(int argc, char *argv[]) diff --git a/usr.sbin/rwhod/rwhod.c b/usr.sbin/rwhod/rwhod.c index 23c307e3382..1b2b2b153a0 100644 --- a/usr.sbin/rwhod/rwhod.c +++ b/usr.sbin/rwhod/rwhod.c @@ -137,7 +137,7 @@ void run_as(uid_t *uid, gid_t *gid); void quit(const char *msg); void sender_process(void); int verify(char *name, int maxlen); -static void usage(void); +static void usage(void) __dead2; #ifdef DEBUG char *interval(int time, char *updown); diff --git a/usr.sbin/setfib/setfib.c b/usr.sbin/setfib/setfib.c index 0783a07f459..1c8adbc988d 100644 --- a/usr.sbin/setfib/setfib.c +++ b/usr.sbin/setfib/setfib.c @@ -45,7 +45,7 @@ __FBSDID("$FreeBSD$"); #include #include -static void usage(void); +static void usage(void) __dead2; int main(int argc, char *argv[]) diff --git a/usr.sbin/spray/spray.c b/usr.sbin/spray/spray.c index d8d25ef8a33..18caf3ff3bd 100644 --- a/usr.sbin/spray/spray.c +++ b/usr.sbin/spray/spray.c @@ -47,7 +47,7 @@ static const char rcsid[] = #define SPRAYOVERHEAD 86 #endif -static void usage(void); +static void usage(void) __dead2; static void print_xferstats(unsigned int, int, double); /* spray buffer */ diff --git a/usr.sbin/tcpdrop/tcpdrop.c b/usr.sbin/tcpdrop/tcpdrop.c index 135f1b52c40..018ef8456e6 100644 --- a/usr.sbin/tcpdrop/tcpdrop.c +++ b/usr.sbin/tcpdrop/tcpdrop.c @@ -58,7 +58,7 @@ static bool tcpdropall(const char *, const char *, int); static bool tcpdropbyname(const char *, const char *, const char *, const char *); static bool tcpdropconn(const struct in_conninfo *); -static void usage(void); +static void usage(void) __dead2; /* * Drop a tcp connection.