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include/xbps.h.in: update descriptions for *_sha256* functions and defines

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Duncan Overbruck 2020-02-10 13:12:48 +01:00
parent 9efa72f5c8
commit dd4eabe253
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GPG Key ID: 335C1D17EC3D6E35
1 changed files with 37 additions and 21 deletions
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52
include/xbps.h.in
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@ -258,8 +258,17 @@
*/
#define XBPS_FETCH_TIMEOUT 30
/**
* @def XBPS_SHA256_DIGEST_SIZE
* The size for a binary SHA256 digests.
*/
#define XBPS_SHA256_DIGEST_SIZE 32
#define XBPS_SHA256_SIZE 64+1
/**
* @def XBPS_SHA256_SIZE
* The size for a hex string SHA256 hash.
*/
#define XBPS_SHA256_SIZE (XBPS_SHA256_DIGEST_SIZE*2)+1
#ifdef __cplusplus
extern "C" {
@ -761,13 +770,16 @@ int xbps_fetch_file(struct xbps_handle *xhp, const char *uri,
* @param[in] xhp Pointer to an xbps_handle struct.
* @param[in] uri Remote URI string.
* @param[in] flags Flags passed to libfetch's fetchXget().
* @param[out] digestp Checksum of the downloaded file.
* @param[out] digest SHA256 digest buffer for the downloaded file or NULL.
* @param[in] digestlen Size of \digest if specified; must be at least
* XBPS_SHA256_DIGEST_SIZE.
*
* @return -1 on error, 0 if not downloaded (because local/remote size/mtime
* do not match) and 1 if downloaded successfully.
**/
int xbps_fetch_file_sha256(struct xbps_handle *xhp, const char *uri,
const char *flags, unsigned char *digest, size_t digestlen);
const char *flags, unsigned char *digest,
size_t digestlen);
/**
* Download a file from a remote URL to current working directory,
@ -792,7 +804,9 @@ int xbps_fetch_file_dest(struct xbps_handle *xhp, const char *uri,
* @param[in] uri Remote URI string.
* @param[in] filename Local filename to safe the file
* @param[in] flags Flags passed to libfetch's fetchXget().
* @param[out] digest Checksum of the downloaded file.
* @param[out] digest SHA256 digest buffer of the downloaded file or NULL.
* @param[in] digestlen Size of \a digest if specified; must be at least
* XBPS_SHA256_DIGEST_SIZE.
*
* @return -1 on error, 0 if not downloaded (because local/remote size/mtime
* do not match) and 1 if downloaded successfully.
@ -1855,26 +1869,28 @@ char *xbps_xasprintf(const char *fmt, ...)__attribute__ ((format (printf, 1, 2))
bool xbps_mmap_file(const char *file, void **mmf, size_t *mmflen, size_t *filelen);
/**
* Returns a string with the sha256 hash for the file specified
* by \a file.
* Computes a sha256 hex digest into \a dst of size \a len
* from file \a file.
*
* @param[in] file Path to a file.
* @return A pointer to a malloc(3)ed string, NULL otherwise and errno
* is set appropiately. The pointer should be free(3)d when it's no
* longer needed.
* @param[out] dst Destination buffer.
* @param[in] len Size of \a dst must be at least XBPS_SHA256_LENGTH.
* @param[in] file The file to read.
*
* @return true on success, false otherwise.
*/
bool xbps_file_sha256(char *dst, size_t dstlen, const char *file);
bool xbps_file_sha256(char *dst, size_t len, const char *file);
/**
* Returns a raw byte buffer with the sha256 hash for the file specified
* by \a file.
* Computes a sha256 binary digest into \a dst of size \a len
* from file \a file.
*
* @param[in] file Path to a file.
* @return A pointer to a malloc(3)ed buffer, NULL otherwise and errno
* is set appropiately. The pointer should be free(3)d when it's no
* longer needed.
* @param[out] dst Destination buffer.
* @param[in] len Size of \a dst must be at least XBPS_SHA256_DIGEST_SIZE_LENGTH.
* @param[in] file The file to read.
*
* @return true on success, false otherwise.
*/
bool xbps_file_sha256_raw(unsigned char *dst, size_t dstlen, const char *file);
bool xbps_file_sha256_raw(unsigned char *dst, size_t len, const char *file);
/**
* Compares the sha256 hash of the file \a file with the sha256