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| author | June McEnroe <june@causal.agency> | 2021-06-24 18:06:09 -0400 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2021-06-25 11:50:14 -0400 |
| commit | 1239ffa689964778425a75786116eb363c4961f1 (patch) | |
| tree | f1a333a655bc5d1c989c7b2d09d948d60e46bc60 | |
| parent | Remove explicit tls_handshake(3) from ircConnect (diff) | |
| download | catgirl-1239ffa689964778425a75786116eb363c4961f1.tar.gz catgirl-1239ffa689964778425a75786116eb363c4961f1.zip | |
FreeBSD: Limit rights on stdio and socket
Diffstat (limited to '')
| -rw-r--r-- | chat.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/chat.c b/chat.c index 873eed9..821d510 100644 --- a/chat.c +++ b/chat.c @@ -319,6 +319,18 @@ int main(int argc, char *argv[]) { #endif #ifdef __FreeBSD__ + struct { cap_rights_t stdin, stdout, stderr, irc; } rights; + cap_rights_init(&rights.stdin, CAP_READ, CAP_EVENT); + cap_rights_init(&rights.stdout, CAP_WRITE, CAP_IOCTL); + cap_rights_init(&rights.stderr, CAP_WRITE); + cap_rights_init(&rights.irc, CAP_SEND, CAP_RECV, CAP_EVENT); + int error = 0 + || cap_rights_limit(STDIN_FILENO, &rights.stdin) + || cap_rights_limit(STDOUT_FILENO, &rights.stdout) + || cap_rights_limit(STDERR_FILENO, &rights.stderr) + || cap_rights_limit(irc, &rights.irc); + if (error) err(EX_OSERR, "cap_rights_limit"); + if (self.restricted) { int error = cap_enter(); if (error) err(EX_OSERR, "cap_enter"); |