diff options
| author | deraadt@openbsd.org <deraadt@openbsd.org> | 2019-06-28 13:35:04 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2019-07-05 11:10:39 +1000 |
| commit | 4d28fa78abce2890e136281950633fae2066cc29 (patch) | |
| tree | 33226ec64ced661bb7e40005e30744b68fa59a80 /clientloop.c | |
| parent | e8c974043c1648eab0ad67a7ba6a3e444fe79d2d (diff) | |
upstream: When system calls indicate an error they return -1, not
some arbitrary value < 0. errno is only updated in this case. Change all
(most?) callers of syscalls to follow this better, and let's see if this
strictness helps us in the future.
OpenBSD-Commit-ID: 48081f00db7518e3b712a49dca06efc2a5428075
Diffstat (limited to 'clientloop.c')
| -rw-r--r-- | clientloop.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/clientloop.c b/clientloop.c index ccf8f4b8..7f32871f 100644 --- a/clientloop.c +++ b/clientloop.c @@ -1,4 +1,4 @@ -/* $OpenBSD: clientloop.c,v 1.325 2019/06/26 22:29:43 dtucker Exp $ */ +/* $OpenBSD: clientloop.c,v 1.326 2019/06/28 13:35:04 deraadt Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -561,7 +561,7 @@ client_wait_until_can_do_something(struct ssh *ssh, } ret = select((*maxfdp)+1, *readsetp, *writesetp, NULL, tvp); - if (ret < 0) { + if (ret == -1) { /* * We have to clear the select masks, because we return. * We have to return, because the mainloop checks for the flags @@ -644,11 +644,11 @@ client_process_net_input(struct ssh *ssh, fd_set *readset) * There is a kernel bug on Solaris that causes select to * sometimes wake up even though there is no data available. */ - if (len < 0 && + if (len == -1 && (errno == EAGAIN || errno == EINTR || errno == EWOULDBLOCK)) len = 0; - if (len < 0) { + if (len == -1) { /* * An error has encountered. Perhaps there is a * network problem. @@ -1096,7 +1096,7 @@ process_escapes(struct ssh *ssh, Channel *c, /* Fork into background. */ pid = fork(); - if (pid < 0) { + if (pid == -1) { error("fork: %.100s", strerror(errno)); continue; } @@ -2248,7 +2248,7 @@ client_session2_setup(struct ssh *ssh, int id, int want_tty, int want_subsystem, struct winsize ws; /* Store window size in the packet. */ - if (ioctl(in_fd, TIOCGWINSZ, &ws) < 0) + if (ioctl(in_fd, TIOCGWINSZ, &ws) == -1) memset(&ws, 0, sizeof(ws)); channel_request_start(ssh, id, "pty-req", 1); |