dbm/src/snprintf.c

   1 #ifndef HAVE_SNPRINTF
   2
   3 #include "watcomfx.h"
   4 #include <sys/types.h>
   5 #include <stddef.h>
   6 #include <stdio.h>
   7
   8 #ifdef HAVE_SYS_CDEFS_H
   9 #include <sys/cdefs.h>
  10 #else
  11 #include "cdefs.h"
  12 #endif
  13
  14 #include "prtypes.h"
  15
  16 #include <ncompat.h>
  17
  18 /* The OS/2 VAC compiler doesn't appear to define __STDC__ and won't let us define it either */
  19 #if defined(__STDC__) || defined(XP_OS2_VACPP)
  20 #include <stdarg.h>
  21 #else
  22 #include <varargs.h>
  23 #endif
  24
  25 int
  26 #if defined(__STDC__) || defined(XP_OS2_VACPP)
  27 snprintf(char *str, size_t n, const char *fmt, ...)
  28 #else
  29 snprintf(str, n, fmt, va_alist)
  30         char *str;
  31         size_t n;
  32         const char *fmt;
  33         va_dcl
  34 #endif
  35 {
  36         va_list ap;
  37 #ifdef VSPRINTF_CHARSTAR
  38         char *rp;
  39 #else
  40         int rval;
  41 #endif
  42 #if defined(__STDC__) || defined(XP_OS2_VACPP)
  43         va_start(ap, fmt);
  44 #else
  45         va_start(ap);
  46 #endif
  47 #ifdef VSPRINTF_CHARSTAR
  48         rp = vsprintf(str, fmt, ap);
  49         va_end(ap);
  50         return (strlen(rp));
  51 #else
  52         rval = vsprintf(str, fmt, ap);
  53         va_end(ap);
  54         return (rval);
  55 #endif
  56 }
  57
  58 int
  59 vsnprintf(str, n, fmt, ap)
  60         char *str;
  61         size_t n;
  62         const char *fmt;
  63         va_list ap;
  64 {
  65 #ifdef VSPRINTF_CHARSTAR
  66         return (strlen(vsprintf(str, fmt, ap)));
  67 #else
  68         return (vsprintf(str, fmt, ap));
  69 #endif
  70 }
  71
  72 #endif /* HAVE_SNPRINTF */
  73
  74 /* Some compilers don't like an empty source file. */
  75 static int dummy = 0;