dbm/src/snprintf.c

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