add a howto document about corrupted blob recovery
[git/jnareb-git/bp-gitweb.git] / csum-file.h
blob4d1b231292ad4cfc7996b73ea31fa74a5eff2687
1 #ifndef CSUM_FILE_H
2 #define CSUM_FILE_H
4 struct progress;
6 /* A SHA1-protected file */
7 struct sha1file {
8 int fd, error;
9 unsigned int offset, namelen;
10 SHA_CTX ctx;
11 struct progress *tp;
12 char name[PATH_MAX];
13 int do_crc;
14 uint32_t crc32;
15 unsigned char buffer[8192];
18 extern struct sha1file *sha1fd(int fd, const char *name);
19 extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
20 extern int sha1close(struct sha1file *, unsigned char *, int);
21 extern int sha1write(struct sha1file *, void *, unsigned int);
22 extern void crc32_begin(struct sha1file *);
23 extern uint32_t crc32_end(struct sha1file *);
25 #endif