diff options
Diffstat (limited to 'libnetdata/uuid/uuid.c')
| -rw-r--r-- | libnetdata/uuid/uuid.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/libnetdata/uuid/uuid.c b/libnetdata/uuid/uuid.c deleted file mode 100644 index 55b66db9b..000000000 --- a/libnetdata/uuid/uuid.c +++ /dev/null @@ -1,179 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#include "../libnetdata.h" - -void uuid_unparse_lower_compact(const uuid_t uuid, char *out) { - static const char *hex_chars = "0123456789abcdef"; - for (int i = 0; i < 16; i++) { - out[i * 2] = hex_chars[(uuid[i] >> 4) & 0x0F]; - out[i * 2 + 1] = hex_chars[uuid[i] & 0x0F]; - } - out[32] = '\0'; // Null-terminate the string -} - -inline int uuid_parse_compact(const char *in, uuid_t uuid) { - if (strlen(in) != 32) - return -1; // Invalid input length - - for (int i = 0; i < 16; i++) { - int high = hex_char_to_int(in[i * 2]); - int low = hex_char_to_int(in[i * 2 + 1]); - - if (high < 0 || low < 0) - return -1; // Invalid hexadecimal character - - uuid[i] = (high << 4) | low; - } - - return 0; // Success -} - -int uuid_parse_flexi(const char *in, uuid_t uu) { - if(!in || !*in) - return -1; - - size_t hexCharCount = 0; - size_t hyphenCount = 0; - const char *s = in; - int byteIndex = 0; - uuid_t uuid; // work on a temporary place, to not corrupt the previous value of uu if we fail - - while (*s && byteIndex < 16) { - if (*s == '-') { - s++; - hyphenCount++; - - if (unlikely(hyphenCount > 4)) - // Too many hyphens - return -2; - } - - if (likely(isxdigit(*s))) { - int high = hex_char_to_int(*s++); - hexCharCount++; - - if (likely(isxdigit(*s))) { - int low = hex_char_to_int(*s++); - hexCharCount++; - - uuid[byteIndex++] = (high << 4) | low; - } - else - // Not a valid UUID (expected a pair of hex digits) - return -3; - } - else - // Not a valid UUID - return -4; - } - - if (unlikely(byteIndex < 16)) - // Not enough data to form a UUID - return -5; - - if (unlikely(hexCharCount != 32)) - // wrong number of hex digits - return -6; - - if(unlikely(hyphenCount != 0 && hyphenCount != 4)) - // wrong number of hyphens - return -7; - - // copy the final value - memcpy(uu, uuid, sizeof(uuid_t)); - - return 0; -} - - -// ---------------------------------------------------------------------------- -// unit test - -static inline void remove_hyphens(const char *uuid_with_hyphens, char *uuid_without_hyphens) { - while (*uuid_with_hyphens) { - if (*uuid_with_hyphens != '-') { - *uuid_without_hyphens++ = *uuid_with_hyphens; - } - uuid_with_hyphens++; - } - *uuid_without_hyphens = '\0'; -} - -int uuid_unittest(void) { - const int num_tests = 100000; - int failed_tests = 0; - - int i; - for (i = 0; i < num_tests; i++) { - uuid_t original_uuid, parsed_uuid; - char uuid_str_with_hyphens[UUID_STR_LEN], uuid_str_without_hyphens[UUID_COMPACT_STR_LEN]; - - // Generate a random UUID - switch(i % 2) { - case 0: - uuid_generate(original_uuid); - break; - - case 1: - uuid_generate_random(original_uuid); - break; - } - - // Unparse it with hyphens - bool lower = false; - switch(i % 3) { - case 0: - uuid_unparse_lower(original_uuid, uuid_str_with_hyphens); - lower = true; - break; - - case 1: - uuid_unparse(original_uuid, uuid_str_with_hyphens); - break; - - case 2: - uuid_unparse_upper(original_uuid, uuid_str_with_hyphens); - break; - } - - // Remove the hyphens - remove_hyphens(uuid_str_with_hyphens, uuid_str_without_hyphens); - - if(lower) { - char test[UUID_COMPACT_STR_LEN]; - uuid_unparse_lower_compact(original_uuid, test); - if(strcmp(test, uuid_str_without_hyphens) != 0) { - printf("uuid_unparse_lower_compact() failed, expected '%s', got '%s'\n", - uuid_str_without_hyphens, test); - failed_tests++; - } - } - - // Parse the UUID string with hyphens - int parse_result = uuid_parse_flexi(uuid_str_with_hyphens, parsed_uuid); - if (parse_result != 0) { - printf("uuid_parse_flexi() returned -1 (parsing error) for UUID with hyphens: %s\n", uuid_str_with_hyphens); - failed_tests++; - } else if (uuid_compare(original_uuid, parsed_uuid) != 0) { - printf("uuid_parse_flexi() parsed value mismatch for UUID with hyphens: %s\n", uuid_str_with_hyphens); - failed_tests++; - } - - // Parse the UUID string without hyphens - parse_result = uuid_parse_flexi(uuid_str_without_hyphens, parsed_uuid); - if (parse_result != 0) { - printf("uuid_parse_flexi() returned -1 (parsing error) for UUID without hyphens: %s\n", uuid_str_without_hyphens); - failed_tests++; - } - else if(uuid_compare(original_uuid, parsed_uuid) != 0) { - printf("uuid_parse_flexi() parsed value mismatch for UUID without hyphens: %s\n", uuid_str_without_hyphens); - failed_tests++; - } - - if(failed_tests) - break; - } - - printf("UUID: failed %d out of %d tests.\n", failed_tests, i); - return failed_tests; -} |