gpg-interface.h 1.83 KB
Newer Older
1 2 3
#ifndef GPG_INTERFACE_H
#define GPG_INTERFACE_H

4 5 6
#define GPG_VERIFY_VERBOSE		1
#define GPG_VERIFY_RAW			2
#define GPG_VERIFY_OMIT_STATUS	4
7

8
struct signature_check {
9
	char *payload;
10 11
	char *gpg_output;
	char *gpg_status;
12 13 14 15 16 17 18 19 20 21

	/*
	 * possible "result":
	 * 0 (not checked)
	 * N (checked but no further result)
	 * U (untrusted good)
	 * G (good)
	 * B (bad)
	 */
	char result;
22 23 24 25
	char *signer;
	char *key;
};

26 27 28 29 30 31 32 33
void signature_check_clear(struct signature_check *sigc);

/*
 * Look at GPG signed content (e.g. a signed tag object), whose
 * payload is followed by a detached signature on it.  Return the
 * offset where the embedded detached signature begins, or the end of
 * the data when there is no such signature.
 */
34
size_t parse_signature(const char *buf, size_t size);
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

void parse_gpg_output(struct signature_check *);

/*
 * Create a detached signature for the contents of "buffer" and append
 * it after "signature"; "buffer" and "signature" can be the same
 * strbuf instance, which would cause the detached signature appended
 * at the end.
 */
int sign_buffer(struct strbuf *buffer, struct strbuf *signature,
		const char *signing_key);

/*
 * Run "gpg" to see if the payload matches the detached signature.
 * gpg_output, when set, receives the diagnostic output from GPG.
 * gpg_status, when set, receives the status output from GPG.
 */
int verify_signed_buffer(const char *payload, size_t payload_size,
			 const char *signature, size_t signature_size,
			 struct strbuf *gpg_output, struct strbuf *gpg_status);

int git_gpg_config(const char *, const char *, void *);
void set_signing_key(const char *);
const char *get_signing_key(void);
int check_signature(const char *payload, size_t plen,
		    const char *signature, size_t slen,
		    struct signature_check *sigc);
void print_signature_buffer(const struct signature_check *sigc,
			    unsigned flags);
64 65

#endif