diff options
Diffstat (limited to 'src/blob.c')
| -rw-r--r-- | src/blob.c | 49 |
1 files changed, 49 insertions, 0 deletions
@@ -186,6 +186,30 @@ void apk_blob_push_uint(apk_blob_t *to, unsigned int value, int radix) apk_blob_push_blob(to, APK_BLOB_PTR_PTR(ptr+1, &buf[sizeof(buf)-1])); } +static int checksum_char_to_id(char chr) +{ + switch (chr) { + case '1': return APK_CHECKSUM_SHA1; + } + return APK_CHECKSUM_NONE; +} + +void apk_blob_push_csum(apk_blob_t *to, struct apk_checksum *csum) +{ + switch (csum->type) { + case APK_CHECKSUM_MD5: + apk_blob_push_hexdump(to, APK_BLOB_CSUM(*csum)); + break; + case APK_CHECKSUM_SHA1: + apk_blob_push_blob(to, APK_BLOB_STR("X1")); + apk_blob_push_hexdump(to, APK_BLOB_CSUM(*csum)); + break; + default: + *to = APK_BLOB_NULL; + break; + } +} + void apk_blob_push_hexdump(apk_blob_t *to, apk_blob_t binary) { char *d; @@ -239,6 +263,31 @@ unsigned int apk_blob_pull_uint(apk_blob_t *b, int radix) return val; } +void apk_blob_pull_csum(apk_blob_t *b, struct apk_checksum *csum) +{ + if (unlikely(APK_BLOB_IS_NULL(*b))) + return; + + if (unlikely(b->len < 2)) { + *b = APK_BLOB_NULL; + return; + } + + switch (b->ptr[0]) { + case 'X': + csum->type = checksum_char_to_id(b->ptr[1]); + b->ptr += 2; + b->len -= 2; + apk_blob_pull_hexdump(b, APK_BLOB_CSUM(*csum)); + break; + default: + /* Assume MD5 for backwards compatibility */ + csum->type = APK_CHECKSUM_MD5; + apk_blob_pull_hexdump(b, APK_BLOB_CSUM(*csum)); + break; + } +} + void apk_blob_pull_hexdump(apk_blob_t *b, apk_blob_t to) { char *s, *d; |