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unnamed unix domain socket could generate invalid log output or lead to a process crash

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This commit is contained in:
Gerhard Rieger 2012-07-22 16:42:37 +02:00
parent ab25a5199b
commit 1c13486bd6
2 changed files with 13 additions and 5 deletions
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4
CHANGES
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@ -53,6 +53,10 @@ corrections:
socat option -x did not print packet direction, timestamp etc; thanks
to Anthony Sharobaiko for sending a patch
Marcus Meissner provided a patch that fixes invalid output and possible
process crash when socat prints info about an unnamed unix domain
socket
docu mentions option so-bindtodev but correct name is so-bindtodevice.
Thanks to Jim Zimmerman for reporting.

14
sysutils.c
View file

@ -1,5 +1,5 @@
/* source: sysutils.c */
/* Copyright Gerhard Rieger 2001-2008 */
/* Copyright Gerhard Rieger 2001-2012 */
/* Published under the GNU General Public License V.2, see file COPYING */
/* translate socket addresses into human readable form */
@ -215,10 +215,14 @@ char *sockaddr_unix_info(const struct sockaddr_un *sa, socklen_t salen, char *bu
} else
#endif /* WITH_ABSTRACT_UNIXSOCKET */
{
nextc =
sanitize_string(sa->sun_path,
MIN(UNIX_PATH_MAX, strlen(sa->sun_path)),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
if (salen <= XIOUNIXSOCKOVERHEAD) {
nextc = sanitize_string ("<anon>", MIN(UNIX_PATH_MAX, strlen("<anon>")),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
} else {
nextc = sanitize_string(sa->sun_path,
MIN(UNIX_PATH_MAX, strlen(sa->sun_path)),
ubuff, XIOSAN_DEFAULT_BACKSLASH_OCT_3);
}
*nextc = '\0';
strncpy(buff, ubuff, blen);
}