clib/snprintf.c

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