proxmox-mirrors/libgit2
1
0
Fork 0
mirror of https://git.proxmox.com/git/libgit2 synced 2025-05-08 12:14:16 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #438 from jdavid/development

Browse Source 
Make git_oid_fromstrn support hex strings of odd length
This commit is contained in:
Vicent Martí 2011-10-03 14:40:06 -07:00
commit ef1e5da127
1 changed files with 16 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/oid.c
View File

@ -34,15 +34,16 @@ static char to_hex[] = "0123456789abcdef";
int git_oid_fromstrn(git_oid *out, const char *str, size_t length)
{
size_t p;
int v;
if (length < 4)
return git__throw(GIT_ENOTOID, "Failed to generate sha1. Given string is too short");
if (length > GIT_OID_HEXSZ)
length = GIT_OID_HEXSZ;
if (length % 2)
length--;
for (p = 0; p < length; p += 2) {
int v = (from_hex[(unsigned char)str[p + 0]] << 4)
for (p = 0; p < length - 1; p += 2) {
v = (from_hex[(unsigned char)str[p + 0]] << 4)
| from_hex[(unsigned char)str[p + 1]];
if (v < 0)
@ -51,8 +52,16 @@ int git_oid_fromstrn(git_oid *out, const char *str, size_t length)
out->id[p / 2] = (unsigned char)v;
}
for (; p < GIT_OID_HEXSZ; p += 2)
out->id[p / 2] = 0x0;
if (length % 2) {
v = (from_hex[(unsigned char)str[p + 0]] << 4);
if (v < 0)
return git__throw(GIT_ENOTOID, "Failed to generate sha1. Given string is not a valid sha1 hash");
out->id[p / 2] = (unsigned char)v;
p += 2;
}
memset(out->id + p / 2, 0, (GIT_OID_HEXSZ - p) / 2);
return GIT_SUCCESS;
}