diff options
| author | Kevin Steves <stevesk@cvs.openbsd.org> | 2001-04-12 20:09:39 +0000 |
|---|---|---|
| committer | Kevin Steves <stevesk@cvs.openbsd.org> | 2001-04-12 20:09:39 +0000 |
| commit | e57cfb6e67a9083afbbf8ef90cc40f20f3cc0cae (patch) | |
| tree | 9c6a40aa55acc3e7cd847d65b01b96fc26a1ad9a /usr.bin/ssh/misc.c | |
| parent | 16b07b0d75cefdf012d4d5121c56a888154ae47d (diff) | |
robust port validation; ok markus@ jakob@
Diffstat (limited to 'usr.bin/ssh/misc.c')
| -rw-r--r-- | usr.bin/ssh/misc.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/usr.bin/ssh/misc.c b/usr.bin/ssh/misc.c index 0399725eaaa..b5c0fd1734c 100644 --- a/usr.bin/ssh/misc.c +++ b/usr.bin/ssh/misc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: misc.c,v 1.4 2001/02/28 17:52:54 deraadt Exp $ */ +/* $OpenBSD: misc.c,v 1.5 2001/04/12 20:09:37 stevesk Exp $ */ /* * Copyright (c) 2000 Markus Friedl. All rights reserved. @@ -25,7 +25,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: misc.c,v 1.4 2001/02/28 17:52:54 deraadt Exp $"); +RCSID("$OpenBSD: misc.c,v 1.5 2001/04/12 20:09:37 stevesk Exp $"); #include "misc.h" #include "log.h" @@ -113,3 +113,18 @@ pwcopy(struct passwd *pw) copy->pw_shell = xstrdup(pw->pw_shell); return copy; } + +int a2port(const char *s) +{ + long port; + char *endp; + + errno = 0; + port = strtol(s, &endp, 0); + if (s == endp || *endp != '\0' || + (errno == ERANGE && (port == LONG_MIN || port == LONG_MAX)) || + port <= 0 || port > 65535) + return 0; + + return port; +} |