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Add syslog_maxlen to control the max size of syslog messages.

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This commit is contained in:
Todd C. Miller
2016-10-18 15:51:47 -06:00
parent f632e0a63d
commit 44c2679f83
8 changed files with 110 additions and 42 deletions
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16
plugins/sudoers/logging.c
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@@ -72,14 +72,18 @@ static char *new_logline(const char *, int);
static void
mysyslog(int pri, const char *fmt, ...)
{
char buf[MAXSYSLOGLEN+1];
char *buf;
va_list ap;
debug_decl(mysyslog, SUDOERS_DEBUG_LOGGING)
va_start(ap, fmt);
openlog("sudo", 0, def_syslog);
vsnprintf(buf, sizeof(buf), fmt, ap);
syslog(pri, "%s", buf);
if (vasprintf(&buf, fmt, ap) == -1) {
sudo_warnx(U_("%s: %s"), __func__, U_("unable to allocate memory"));
} else {
syslog(pri, "%s", buf);
free(buf);
}
va_end(ap);
closelog();
debug_return;
@@ -87,7 +91,7 @@ mysyslog(int pri, const char *fmt, ...)
/*
* Log a message to syslog, pre-pending the username and splitting the
* message into parts if it is longer than MAXSYSLOGLEN.
* message into parts if it is longer than syslog_maxlen.
*/
static void
do_syslog(int pri, char *msg)
@@ -104,7 +108,7 @@ do_syslog(int pri, char *msg)
* Log the full line, breaking into multiple syslog(3) calls if necessary
*/
fmt = _("%8s : %s");
maxlen = MAXSYSLOGLEN - (strlen(fmt) - 5 + strlen(user_name));
maxlen = def_syslog_maxlen - (strlen(fmt) - 5 + strlen(user_name));
for (p = msg; *p != '\0'; ) {
len = strlen(p);
if (len > maxlen) {
@@ -132,7 +136,7 @@ do_syslog(int pri, char *msg)
p += len;
}
fmt = _("%8s : (command continued) %s");
maxlen = MAXSYSLOGLEN - (strlen(fmt) - 5 + strlen(user_name));
maxlen = def_syslog_maxlen - (strlen(fmt) - 5 + strlen(user_name));
}
sudoers_setlocale(oldlocale, NULL);