__fopen_rb_ca.c raw

   1  #include "stdio_impl.h"
   2  #include <fcntl.h>
   3  #include <string.h>
   4  
   5  FILE *__fopen_rb_ca(const char *filename, FILE *f, unsigned char *buf, size_t len)
   6  {
   7  	memset(f, 0, sizeof *f);
   8  
   9  	f->fd = sys_open(filename, O_RDONLY|O_CLOEXEC);
  10  	if (f->fd < 0) return 0;
  11  	__syscall(SYS_fcntl, f->fd, F_SETFD, FD_CLOEXEC);
  12  
  13  	f->flags = F_NOWR | F_PERM;
  14  	f->buf = buf + UNGET;
  15  	f->buf_size = len - UNGET;
  16  	f->read = __stdio_read;
  17  	f->seek = __stdio_seek;
  18  	f->close = __stdio_close;
  19  	f->lock = -1;
  20  
  21  	return f;
  22  }
  23