1 #include "stdio_impl.h"
2 #include <fcntl.h>
3 #include <string.h>
4
__fopen_rb_ca(const char * filename,FILE * f,unsigned char * buf,size_t len)5 FILE* __fopen_rb_ca(const char* filename, FILE* f, unsigned char* buf, size_t len) {
6 memset(f, 0, sizeof *f);
7
8 f->fd = open(filename, O_RDONLY | O_CLOEXEC);
9 if (f->fd < 0)
10 return 0;
11 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