source/lib/slprintf.c

   1 /*
   2    Unix SMB/Netbios implementation.
   3    Version 1.9.
   4    snprintf replacement
   5    Copyright (C) Andrew Tridgell 1998
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23
  24 extern int DEBUGLEVEL;
  25
  26
  27 /* this is like vsnprintf but the 'n' limit does not include
  28    the terminating null. So if you have a 1024 byte buffer then
  29    pass 1023 for n */
  30 int vslprintf(char *str, int n, char *format, va_list ap)
  31 {
  32         int ret = vsnprintf(str, n, format, ap);
  33         if (ret > n || ret < 0) {
  34                 str[n] = 0;
  35                 return -1;
  36         }
  37         str[ret] = 0;
  38         return ret;
  39 }
  40
  41 #ifdef HAVE_STDARG_H
  42  int slprintf(char *str, int n, char *format, ...)
  43 {
  44 #else
  45  int slprintf(va_alist)
  46 va_dcl
  47 {
  48         char *str, *format;
  49         int n;
  50 #endif
  51         va_list ap;
  52         int ret;
  53
  54 #ifdef HAVE_STDARG_H
  55         va_start(ap, format);
  56 #else
  57         va_start(ap);
  58         str = va_arg(ap,char *);
  59         n = va_arg(ap,int);
  60         format = va_arg(ap,char *);
  61 #endif
  62
  63         ret = vslprintf(str,n,format,ap);
  64         va_end(ap);
  65         return ret;
  66 }
  67
  68  /* this is rather line fprintf, except that it works on a file descriptor
  69     and is limited to one pstring of output */
  70 #ifdef HAVE_STDARG_H
  71  int fdprintf(int fd, char *format, ...)
  72 {
  73 #else
  74  int fdprintf(va_alist)
  75 va_dcl
  76 {
  77         int fd;
  78         char *format;
  79 #endif
  80         va_list ap;
  81         pstring str;
  82
  83 #ifdef HAVE_STDARG_H
  84         va_start(ap, format);
  85 #else
  86         va_start(ap);
  87         fd = va_arg(ap,int);
  88         format = va_arg(ap,char *);
  89 #endif
  90         str[0] = 0;
  91
  92         vslprintf(str,sizeof(str),format,ap);
  93         va_end(ap);
  94         return write(fd, str, strlen(str));
  95 }