dist/nvi/clib/snprintf.c

   1 /*      $NetBSD$ */
   2
   3 #include "config.h"
   4
   5 #include <sys/types.h>
   6
   7 #include <stdio.h>
   8
   9 #ifdef __STDC__
  10 #include <stdarg.h>
  11 #else
  12 #include <varargs.h>
  13 #endif
  14
  15 /*
  16  * PUBLIC: #ifndef HAVE_SNPRINTF
  17  * PUBLIC: int snprintf __P((char *, size_t, const char *, ...));
  18  * PUBLIC: #endif
  19  */
  20 int
  21 #ifdef __STDC__
  22 snprintf(char *str, size_t n, const char *fmt, ...)
  23 #else
  24 snprintf(str, n, fmt, va_alist)
  25         char *str;
  26         size_t n;
  27         const char *fmt;
  28         va_dcl
  29 #endif
  30 {
  31         va_list ap;
  32         int rval;
  33 #ifdef __STDC__
  34         va_start(ap, fmt);
  35 #else
  36         va_start(ap);
  37 #endif
  38 #ifdef SPRINTF_RET_CHARPNT
  39         (void)vsprintf(str, fmt, ap);
  40         va_end(ap);
  41         return (strlen(str));
  42 #else
  43         rval = vsprintf(str, fmt, ap);
  44         va_end(ap);
  45         return (rval);
  46 #endif
  47 }