[hackers] [sic] add support for pledge()

From: Joerg Jung <mail_AT_umaxx.net>
Date: Sun, 14 Aug 2016 00:30:46 +0200

Hi,

please find below a diff for sic to enable pledge() to be used on
OpenBSD. This diff was originally submitted by Ali H. Fardan via
ports_AT_openbsd.org. While here, I enabled the usage of strlcpy()
from libc on OpenBSD.

Honestly, I'm not sure about how such portability goo should be
handled the suckless way, but since I see similar #ifdef __linux__
instances in slock, I guess the proposed way is okay?

Thanks,
Regards,
Joerg


diff --git a/sic.c b/sic.c
index ce6d216..b22ea06 100644
--- a/sic.c
+++ b/sic.c
_AT_@ -182,6 +182,8 @@ main(int argc, char *argv[]) {
         setbuf(stdout, NULL);
         setbuf(srv, NULL);
         setbuf(stdin, NULL);
+ if (pledge("stdio", NULL) == -1)
+ eprint("error: pledge:");
         for(;;) { /* main loop */
                 FD_ZERO(&rd);
                 FD_SET(0, &rd);
diff --git a/util.c b/util.c
index 8afa58f..88ea06e 100644
--- a/util.c
+++ b/util.c
_AT_@ -40,12 +40,16 @@ dial(char *host, char *port) {
         return srv;
 }
 
+#ifndef __OpenBSD__
+#define pledge(promises, paths) 0
+
 #define strlcpy _strlcpy
 static void
 strlcpy(char *to, const char *from, int l) {
         memccpy(to, from, '\0', l);
         to[l-1] = '\0';
 }
+#endif
 
 static char *
 eat(char *s, int (*p)(int), int r) {
Received on Sun Aug 14 2016 - 00:30:46 CEST