7e1339189dcdc6e271fad5df7ad427954642ae9e
[git/git.git] / csum-file.h
1 #ifndef CSUM_FILE_H
2 #define CSUM_FILE_H
3
4 /* A SHA1-protected file */
5 struct sha1file {
6 int fd, error;
7 unsigned int offset, namelen;
8 SHA_CTX ctx;
9 char name[PATH_MAX];
10 int do_crc;
11 uint32_t crc32;
12 unsigned char buffer[8192];
13 };
14
15 extern struct sha1file *sha1fd(int fd, const char *name);
16 extern struct sha1file *sha1create(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
17 extern int sha1close(struct sha1file *, unsigned char *, int);
18 extern int sha1write(struct sha1file *, void *, unsigned int);
19 extern int sha1write_compressed(struct sha1file *, void *, unsigned int);
20 extern void crc32_begin(struct sha1file *);
21 extern uint32_t crc32_end(struct sha1file *);
22
23 #endif