1#ifndef CSUM_FILE_H
2#define CSUM_FILE_H
3
4struct progress;
5
6/* A SHA1-protected file */
7struct sha1file {
8 int fd;
9 unsigned int offset;
10 SHA_CTX ctx;
11 off_t total;
12 struct progress *tp;
13 const char *name;
14 int do_crc;
15 uint32_t crc32;
16 unsigned char buffer[8192];
17};
18
19/* sha1close flags */
20#define CSUM_CLOSE 1
21#define CSUM_FSYNC 2
22
23extern struct sha1file *sha1fd(int fd, const char *name);
24extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
25extern int sha1close(struct sha1file *, unsigned char *, unsigned int);
26extern int sha1write(struct sha1file *, void *, unsigned int);
27extern void sha1flush(struct sha1file *f);
28extern void crc32_begin(struct sha1file *);
29extern uint32_t crc32_end(struct sha1file *);
30
31#endif