user/printf.c

   1 /**
   2  *  thunix/lib/printf.c
   3  *
   4  *  the printf function for user space programs
   5  *
   6  */
   7 #include <stdio.h>
   8 #include <stdarg.h>
   9 #include <stddef.h>
  10 #include <unistd.h>
  11
  12 int printf(const char *fmt, ...)
  13 {
  14         char buf[1024];
  15         va_list args;
  16         int i;
  17
  18         va_start(args,fmt);
  19         i = vsprintf(buf, fmt, args);
  20         va_end(args);
  21
  22         conwrite(buf);
  23
  24         return i;
  25 }
  26
  27 int sprintf(char *buf, const char *fmt, ...)
  28 {
  29         va_list args;
  30         int i;
  31
  32         va_start(args,fmt);
  33         i = vsprintf(buf, fmt, args);
  34         va_end(args);
  35
  36         return i;
  37 }