int git__percent_decode(git_buf *decoded_out, const char *input)
{
int len, hi, lo, i, error = GIT_SUCCESS;
assert(decoded_out && input);
len = strlen(input);
git_buf_clear(decoded_out);
for(i = 0; i < len; i++)
{
char c = input[i];
if (c != '%')
goto append;
if (i >= len - 2)
goto append;
hi = git__fromhex(input[i + 1]);
lo = git__fromhex(input[i + 2]);
if (hi < 0 || lo < 0)
goto append;
c = (char)(hi << 4 | lo);
i += 2;
append:
error = git_buf_putc(decoded_out, c);
if (error < GIT_SUCCESS)
return git__rethrow(error, "Failed to percent decode '%s'.", input);
}
return error;
}
int git__percent_decode(git_buf *decoded_out, const char *input)
{
int len, hi, lo, i;
assert(decoded_out && input);
len = (int)strlen(input);
git_buf_clear(decoded_out);
for(i = 0; i < len; i++)
{
char c = input[i];
if (c != '%')
goto append;
if (i >= len - 2)
goto append;
hi = git__fromhex(input[i + 1]);
lo = git__fromhex(input[i + 2]);
if (hi < 0 || lo < 0)
goto append;
c = (char)(hi << 4 | lo);
i += 2;
append:
if (git_buf_putc(decoded_out, c) < 0)
return -1;
}
return 0;
}
GIT_INLINE(int) filename_to_oid(git_oid *oid, const char *ptr)
{
int v, i = 0;
if (strlen(ptr) != GIT_OID_HEXSZ+1)
return -1;
if (ptr[2] != '/') {
return -1;
}
v = (git__fromhex(ptr[i]) << 4) | git__fromhex(ptr[i+1]);
if (v < 0)
return -1;
oid->id[0] = (unsigned char) v;
ptr += 3;
for (i = 0; i < 38; i += 2) {
v = (git__fromhex(ptr[i]) << 4) | git__fromhex(ptr[i + 1]);
if (v < 0)
return -1;
oid->id[1 + i/2] = (unsigned char) v;
}
return 0;
}
int git_oid_fromstrn(git_oid *out, const char *str, size_t length)
{
size_t p;
int v;
if (length > GIT_OID_HEXSZ)
length = GIT_OID_HEXSZ;
for (p = 0; p < length - 1; p += 2) {
v = (git__fromhex(str[p + 0]) << 4)
| git__fromhex(str[p + 1]);
if (v < 0)
return oid_error_invalid("contains invalid characters");
out->id[p / 2] = (unsigned char)v;
}
if (length % 2) {
v = (git__fromhex(str[p + 0]) << 4);
if (v < 0)
return oid_error_invalid("contains invalid characters");
out->id[p / 2] = (unsigned char)v;
p += 2;
}
memset(out->id + p / 2, 0, (GIT_OID_HEXSZ - p) / 2);
return 0;
}
int git_oid_fromstrn(git_oid *out, const char *str, size_t length)
{
size_t p;
int v;
assert(out && str);
if (!length)
return oid_error_invalid("too short");
if (length > GIT_OID_HEXSZ)
return oid_error_invalid("too long");
memset(out->id, 0, GIT_OID_RAWSZ);
for (p = 0; p < length; p++) {
v = git__fromhex(str[p]);
if (v < 0)
return oid_error_invalid("contains invalid characters");
out->id[p / 2] |= (unsigned char)(v << (p % 2 ? 0 : 4));
}
return 0;
}
static int process_entry_path(
const char* entry_path,
const git_oid *note_oid,
int (*note_cb)(git_note_data *note_data, void *payload),
void *payload)
{
int error = -1;
size_t i = 0, j = 0, len;
git_buf buf = GIT_BUF_INIT;
git_note_data note_data;
if ((error = git_buf_puts(&buf, entry_path)) < 0)
goto cleanup;
len = git_buf_len(&buf);
while (i < len) {
if (buf.ptr[i] == '/') {
i++;
continue;
}
if (git__fromhex(buf.ptr[i]) < 0) {
/* This is not a note entry */
goto cleanup;
}
if (i != j)
buf.ptr[j] = buf.ptr[i];
i++;
j++;
}
buf.ptr[j] = '\0';
buf.size = j;
if (j != GIT_OID_HEXSZ) {
/* This is not a note entry */
goto cleanup;
}
if ((error = git_oid_fromstr(
¬e_data.annotated_object_oid, buf.ptr)) < 0)
goto cleanup;
git_oid_cpy(¬e_data.blob_oid, note_oid);
if (note_cb(¬e_data, payload))
error = GIT_EUSER;
cleanup:
git_buf_free(&buf);
return error;
}
static int process_entry_path(
const char* entry_path,
git_oid *annotated_object_id)
{
int error = 0;
size_t i = 0, j = 0, len;
git_buf buf = GIT_BUF_INIT;
if ((error = git_buf_puts(&buf, entry_path)) < 0)
goto cleanup;
len = git_buf_len(&buf);
while (i < len) {
if (buf.ptr[i] == '/') {
i++;
continue;
}
if (git__fromhex(buf.ptr[i]) < 0) {
/* This is not a note entry */
goto cleanup;
}
if (i != j)
buf.ptr[j] = buf.ptr[i];
i++;
j++;
}
buf.ptr[j] = '\0';
buf.size = j;
if (j != GIT_OID_HEXSZ) {
/* This is not a note entry */
goto cleanup;
}
error = git_oid_fromstr(annotated_object_id, buf.ptr);
cleanup:
git_buf_free(&buf);
return error;
}