com32/lib/vfprintf.c

   1 /*
   2  * vfprintf.c
   3  */
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7 #include <stdarg.h>
   8 #include <unistd.h>
   9
  10 #define BUFFER_SIZE     32768
  11
  12 int vfprintf(FILE *file, const char *format, va_list ap)
  13 {
  14   int rv;
  15   char buffer[BUFFER_SIZE];
  16
  17   rv = vsnprintf(buffer, BUFFER_SIZE, format, ap);
  18
  19   if ( rv < 0 )
  20     return rv;
  21
  22   if ( rv > BUFFER_SIZE-1 )
  23     rv = BUFFER_SIZE-1;
  24
  25   return _fwrite(buffer, rv, file);
  26 }