#else
-#ifdef USE_SSLEAY
-
-# ifdef USE_OPENSSL
-# include <openssl/md5.h>
-# include <openssl/sha.h>
-# else
-/* TODO What to do if USE_OPENSSL is undefined? */
-# endif
-
-#else /* USE_SSLEAY */
+#ifdef USE_OPENSSL
+# include <openssl/md5.h>
+# include <openssl/sha.h>
+#else /* USE_OPENSSL */
/* TODO hash functions for other libraries here */
-#endif /* USE_SSLEAY */
+#endif /* USE_OPENSSL */
#endif /* USE_GNUTLS */
#endif /* USE_GNUTLS_NETTLE */
+#ifdef METALINK_HASH_CHECK
+
const digest_params MD5_DIGEST_PARAMS[] = {
{
(Curl_digest_init_func) MD5_Init,
return 0;
}
+static const metalink_digest_def SHA256_DIGEST_DEF[] = {
+ {"sha-256", SHA256_DIGEST_PARAMS}
+};
+
+static const metalink_digest_def SHA1_DIGEST_DEF[] = {
+ {"sha-1", SHA1_DIGEST_PARAMS}
+};
+
+static const metalink_digest_def MD5_DIGEST_DEF[] = {
+ {"md5", MD5_DIGEST_PARAMS}
+};
+
+/*
+ * The alias of supported hash functions in the order by preference
+ * (basically stronger hash comes first). We included "sha-256" and
+ * "sha256". The former is the name defined in the IANA registry named
+ * "Hash Function Textual Names". The latter is widely (and
+ * historically) used in Metalink version 3.
+ */
+static const metalink_digest_alias digest_aliases[] = {
+ {"sha-256", SHA256_DIGEST_DEF},
+ {"sha256", SHA256_DIGEST_DEF},
+ {"sha-1", SHA1_DIGEST_DEF},
+ {"sha1", SHA1_DIGEST_DEF},
+ {"md5", MD5_DIGEST_DEF},
+ {NULL, NULL}
+};
+
+static unsigned char hex_to_uint(const char *s)
+{
+ int v[2];
+ int i;
+ for(i = 0; i < 2; ++i) {
+ v[i] = Curl_raw_toupper(s[i]);
+ if('0' <= v[i] && v[i] <= '9') {
+ v[i] -= '0';
+ }
+ else if('A' <= v[i] && v[i] <= 'Z') {
+ v[i] -= 'A'-10;
+ }
+ }
+ return (unsigned char)((v[0] << 4) | v[1]);
+}
+
+/*
+ * Check checksum of file denoted by filename. The expected hash value
+ * is given in hex_hash which is hex-encoded string.
+ *
+ * This function returns 1 if it succeeds or one of the following
+ * integers:
+ *
+ * 0:
+ * Checksum didn't match.
+ * -1:
+ * Could not open file; or could not read data from file.
+ */
+static int check_hash(const char *filename,
+ const metalink_digest_def *digest_def,
+ const char *hex_hash, FILE *error)
+{
+ unsigned char *result;
+ digest_context *dctx;
+ int check_ok;
+ int fd;
+ size_t i;
+ fprintf(error, "Checking %s checksum of file %s\n", digest_def->hash_name,
+ filename);
+ fd = open(filename, O_RDONLY);
+ if(fd == -1) {
+ fprintf(error, "Could not open file %s: %s\n", filename, strerror(errno));
+ return -1;
+ }
+ dctx = Curl_digest_init(digest_def->dparams);
+ result = malloc(digest_def->dparams->digest_resultlen);
+ while(1) {
+ unsigned char buf[4096];
+ ssize_t len = read(fd, buf, sizeof(buf));
+ if(len == 0) {
+ break;
+ }
+ else if(len == -1) {
+ fprintf(error, "Could not read file %s: %s\n", filename,
+ strerror(errno));
+ Curl_digest_final(dctx, result);
+ close(fd);
+ return -1;
+ }
+ Curl_digest_update(dctx, buf, (unsigned int)len);
+ }
+ Curl_digest_final(dctx, result);
+ check_ok = 1;
+ for(i = 0; i < digest_def->dparams->digest_resultlen; ++i) {
+ if(hex_to_uint(&hex_hash[i*2]) != result[i]) {
+ check_ok = 0;
+ break;
+ }
+ }
+ free(result);
+ close(fd);
+ return check_ok;
+}
+
+int metalink_check_hash(struct Configurable *config,
+ metalinkfile *mlfile,
+ const char *filename)
+{
+ metalink_checksum *chksum;
+ const metalink_digest_alias *digest_alias;
+ int rv;
+ if(mlfile->checksum == NULL) {
+ return -2;
+ }
+ for(digest_alias = digest_aliases; digest_alias->alias_name;
+ ++digest_alias) {
+ for(chksum = mlfile->checksum; chksum; chksum = chksum->next) {
+ if(Curl_raw_equal(digest_alias->alias_name, chksum->hash_name) &&
+ strlen(chksum->hash_value) ==
+ digest_alias->digest_def->dparams->digest_resultlen*2) {
+ break;
+ }
+ }
+ if(chksum) {
+ break;
+ }
+ }
+ if(!digest_alias->alias_name) {
+ fprintf(config->errors, "No supported checksum in Metalink file\n");
+ return -2;
+ }
+ rv = check_hash(filename, digest_alias->digest_def,
+ chksum->hash_value, config->errors);
+ if(rv == 1) {
+ fprintf(config->errors, "Checksum matched\n");
+ }
+ else if(rv == 0) {
+ fprintf(config->errors, "Checksum didn't match\n");
+ }
+ return rv;
+}
+
+#endif /* METALINK_HASH_CHECK */
+
static metalink_checksum *new_metalink_checksum(const char *hash_name,
const char *hash_value)
{
{
return check_content_type(content_type, "application/metalink+xml");
}
-
-static const metalink_digest_def SHA256_DIGEST_DEF[] = {
- {"sha-256", SHA256_DIGEST_PARAMS}
-};
-
-static const metalink_digest_def SHA1_DIGEST_DEF[] = {
- {"sha-1", SHA1_DIGEST_PARAMS}
-};
-
-static const metalink_digest_def MD5_DIGEST_DEF[] = {
- {"md5", MD5_DIGEST_PARAMS}
-};
-
-/*
- * The alias of supported hash functions in the order by preference
- * (basically stronger hash comes first). We included "sha-256" and
- * "sha256". The former is the name defined in the IANA registry named
- * "Hash Function Textual Names". The latter is widely (and
- * historically) used in Metalink version 3.
- */
-static const metalink_digest_alias digest_aliases[] = {
- {"sha-256", SHA256_DIGEST_DEF},
- {"sha256", SHA256_DIGEST_DEF},
- {"sha-1", SHA1_DIGEST_DEF},
- {"sha1", SHA1_DIGEST_DEF},
- {"md5", MD5_DIGEST_DEF},
- {NULL, NULL}
-};
-
-static unsigned char hex_to_uint(const char *s)
-{
- int v[2];
- int i;
- for(i = 0; i < 2; ++i) {
- v[i] = Curl_raw_toupper(s[i]);
- if('0' <= v[i] && v[i] <= '9') {
- v[i] -= '0';
- }
- else if('A' <= v[i] && v[i] <= 'Z') {
- v[i] -= 'A'-10;
- }
- }
- return (unsigned char)((v[0] << 4) | v[1]);
-}
-
-/*
- * Check checksum of file denoted by filename. The expected hash value
- * is given in hex_hash which is hex-encoded string.
- *
- * This function returns 1 if it succeeds or one of the following
- * integers:
- *
- * 0:
- * Checksum didn't match.
- * -1:
- * Could not open file; or could not read data from file.
- */
-static int check_hash(const char *filename,
- const metalink_digest_def *digest_def,
- const char *hex_hash, FILE *error)
-{
- unsigned char *result;
- digest_context *dctx;
- int check_ok;
- int fd;
- size_t i;
- fprintf(error, "Checking %s checksum of file %s\n", digest_def->hash_name,
- filename);
- fd = open(filename, O_RDONLY);
- if(fd == -1) {
- fprintf(error, "Could not open file %s: %s\n", filename, strerror(errno));
- return -1;
- }
- dctx = Curl_digest_init(digest_def->dparams);
- result = malloc(digest_def->dparams->digest_resultlen);
- while(1) {
- unsigned char buf[4096];
- ssize_t len = read(fd, buf, sizeof(buf));
- if(len == 0) {
- break;
- }
- else if(len == -1) {
- fprintf(error, "Could not read file %s: %s\n", filename,
- strerror(errno));
- Curl_digest_final(dctx, result);
- close(fd);
- return -1;
- }
- Curl_digest_update(dctx, buf, (unsigned int)len);
- }
- Curl_digest_final(dctx, result);
- check_ok = 1;
- for(i = 0; i < digest_def->dparams->digest_resultlen; ++i) {
- if(hex_to_uint(&hex_hash[i*2]) != result[i]) {
- check_ok = 0;
- break;
- }
- }
- free(result);
- close(fd);
- return check_ok;
-}
-
-int metalink_check_hash(struct Configurable *config,
- metalinkfile *mlfile,
- const char *filename)
-{
- metalink_checksum *chksum;
- const metalink_digest_alias *digest_alias;
- int rv;
- if(mlfile->checksum == NULL) {
- return -2;
- }
- for(digest_alias = digest_aliases; digest_alias->alias_name;
- ++digest_alias) {
- for(chksum = mlfile->checksum; chksum; chksum = chksum->next) {
- if(Curl_raw_equal(digest_alias->alias_name, chksum->hash_name) &&
- strlen(chksum->hash_value) ==
- digest_alias->digest_def->dparams->digest_resultlen*2) {
- break;
- }
- }
- if(chksum) {
- break;
- }
- }
- if(!digest_alias->alias_name) {
- fprintf(config->errors, "No supported checksum in Metalink file\n");
- return -2;
- }
- rv = check_hash(filename, digest_alias->digest_def,
- chksum->hash_value, config->errors);
- if(rv == 1) {
- fprintf(config->errors, "Checksum matched\n");
- }
- else if(rv == 0) {
- fprintf(config->errors, "Checksum didn't match\n");
- }
- return rv;
-}
projects / thirdparty / curl.git / commitdiff
