xref: /illumos-gate/usr/src/lib/smbsrv/libsmb/common/smb_syslog.c (revision 2a6e99a0f1f7d22c0396e8b2ce9b9babbd1056cf)
1 /*
2  * This file and its contents are supplied under the terms of the
3  * Common Development and Distribution License ("CDDL"), version 1.0.
4  * You may only use this file in accordance with the terms of version
5  * 1.0 of the CDDL.
6  *
7  * A full copy of the text of the CDDL should have accompanied this
8  * source.  A copy of the CDDL is also available via the Internet at
9  * http://www.illumos.org/license/CDDL.
10  */
11 
12 /*
13  * Copyright 2014 Nexenta Systems, Inc.  All rights reserved.
14  */
15 
16 #include <stdio.h>
17 #include <stdarg.h>
18 #include <assert.h>
19 #include <dlfcn.h>
20 #include <errno.h>
21 #include <string.h>
22 #include <syslog.h>
23 #include <smbsrv/libsmb.h>
24 
25 /*
26  * This is exported NODIRECT so that smbd can provide it's own.
27  */
28 void
29 smb_vsyslog(int pri, const char *fmt, va_list ap)
30 {
31 	vsyslog(pri, fmt, ap);
32 }
33 
34 /*
35  * This is exported NODIRECT so that fksmbd can provide it's own.
36  */
37 void
38 smb_syslog(int pri, const char *fmt, ...)
39 {
40 	va_list ap;
41 
42 	va_start(ap, fmt);
43 	smb_vsyslog(pri, fmt, ap);
44 	va_end(ap);
45 }
46 
47 /*
48  * Helper for smb_vsyslog().  Does %m substitutions.
49  */
50 char *
51 smb_syslog_fmt_m(char *buf, int buflen, const char *str, int err)
52 {
53 	char		*bp = buf;
54 	const char	*sp = str;
55 	const char	*endp = buf + buflen - 1;
56 
57 	while ((*bp = *sp) != '\0' && bp != endp) {
58 		if ((*sp++ == '%') && (*sp == 'm')) {
59 			sp++;
60 			if (strerror_r(err, bp, endp - bp) == 0)
61 				bp += strlen(bp);
62 		} else {
63 			bp++;
64 		}
65 	}
66 	*bp = '\0';
67 
68 	return (buf);
69 }
70