com32/elflink/ldlinux/eprintf.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <stdarg.h>
   4 #include <core.h>
   5
   6 #define BUFFER_SIZE     4096
   7
   8 static void veprintf(const char *format, va_list ap)
   9 {
  10     int rv, _rv;
  11     char buffer[BUFFER_SIZE];
  12     char *p;
  13
  14     _rv = rv = vsnprintf(buffer, BUFFER_SIZE, format, ap);
  15
  16     if (rv < 0)
  17         return;
  18
  19     if (rv > BUFFER_SIZE - 1)
  20         rv = BUFFER_SIZE - 1;
  21
  22     p = buffer;
  23     while (rv--)
  24             write_serial(*p++);
  25
  26     _fwrite(buffer, _rv, stdout);
  27 }
  28
  29 void eprintf(const char *format, ...)
  30 {
  31     va_list ap;
  32
  33     va_start(ap, format);
  34     veprintf(format, ap);
  35     va_end(ap);
  36 }