0x1eef
f6e29e4756
This change introduces `isinetaddr6`, a function that validates IPv6 addresses. The interface is identical to isinetaddr, where 0 is returned for an invalid address and 1 is returned for a valid address.
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#include <isinetaddr.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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const char *valid[] = {
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/* valid IPv6 (single colon)*/
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"0000:0000:0000:0000:0000:0000:0000:0001",
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"2001:0db8:85a3:0000:0000:8a2e:0370:7334",
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"fe80:0000:0000:0000:0202:b3ff:fe1e:8329",
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"abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd",
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"1234:5678:9abc:def0:face:face:b00c:0ffe",
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"2001:19f0:5401:0000:0000:ffff:1e61:face",
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"dead:beef:cafe:babe:affe:8a2e:0370:7334",
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/* valid IPv6 (double colon) */
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"fe80::c001:a0ff:fe12:3456",
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"2001:0db8::1",
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"2001:abcd:ef01:2345::",
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"1234::5678",
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"0000:00::1111",
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"000::1111:1111",
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"000::1111:1111:1111",
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"0000:00::1111",
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"0000:0000:0000:0000:0000:0000:0000:00::",
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"2001:0db8:85a3:0000:0000::8a2e:0370:7334",
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"2001::5",
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"::ffff:192.168.2.1",
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"::FFFF:192.168.2.1",
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"::",
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"::1",
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};
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const char *invalid[] = {
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/* invalid IPv6 (single colon) */
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"0000:0000:0000:0000:0000:0000:0000:000Z",
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"0000:0000:0000:0000:0000:0000:0000:0",
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"0000:0000:0000:0000:0000:0000:0000:",
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/* invalid IPv6 (double colon) */
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":::", "2001:::1", "2001:::1::",
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"2001::1::", "::1::",
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"2001:db8:85a3::8a2e:3700:7334",
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"::ffff", "::ffff:", "::ffff:00",
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/* edge cases */
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NULL
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};
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int
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main(void) {
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size_t len;
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/* IPv6: valid */
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len = sizeof(valid) / sizeof(valid[0]);
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for (size_t i = 0; i < len; i++) {
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if (isinetaddr6(valid[i]) != 1) {
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fprintf(stderr, "assertion failed: '%s' should be valid\n", valid[i]);
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abort();
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}
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}
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/* IPv6: invalid */
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len = sizeof(invalid) / sizeof(invalid[0]);
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for (size_t i = 0; i < len; i++) {
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if (isinetaddr6(invalid[i]) != 0) {
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fprintf(stderr, "assertion failed: '%s' should NOT be valid\n", invalid[i]);
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abort();
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}
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}
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/* Done */
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printf("OK\n");
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return EXIT_SUCCESS;
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}
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