usr/src/lib/smbsrv/libsmb/common/smb_syslog.c

   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 }