| /* |
| * Copyright (C) the libgit2 contributors. All rights reserved. |
| * |
| * This file is part of libgit2, distributed under the GNU GPL v2 with |
| * a Linking Exception. For full terms see the included COPYING file. |
| */ |
| #ifndef INCLUDE_oid_h__ |
| #define INCLUDE_oid_h__ |
| |
| #include "git2/oid.h" |
| |
| /** |
| * Format a git_oid into a newly allocated c-string. |
| * |
| * The c-string is owned by the caller and needs to be manually freed. |
| * |
| * @param id the oid structure to format |
| * @return the c-string; NULL if memory is exhausted. Caller must |
| * deallocate the string with git__free(). |
| */ |
| char *git_oid_allocfmt(const git_oid *id); |
| |
| GIT_INLINE(int) git_oid__hashcmp(const unsigned char *sha1, const unsigned char *sha2) |
| { |
| int i; |
| |
| for (i = 0; i < GIT_OID_RAWSZ; i++, sha1++, sha2++) { |
| if (*sha1 != *sha2) |
| return *sha1 - *sha2; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * Compare two oid structures. |
| * |
| * @param a first oid structure. |
| * @param b second oid structure. |
| * @return <0, 0, >0 if a < b, a == b, a > b. |
| */ |
| GIT_INLINE(int) git_oid__cmp(const git_oid *a, const git_oid *b) |
| { |
| return git_oid__hashcmp(a->id, b->id); |
| } |
| |
| GIT_INLINE(void) git_oid__cpy_prefix( |
| git_oid *out, const git_oid *id, size_t len) |
| { |
| memcpy(&out->id, id->id, (len + 1) / 2); |
| |
| if (len & 1) |
| out->id[len / 2] &= 0xF0; |
| } |
| |
| #endif |