#include <stdbool.h> #include <stdio.h> #include <ifaddrs.h> #include <stdint.h> /* Internal definitions used in the libc code. */ #define __getservbyname_r getservbyname_r #define __socket socket #define __getsockname getsockname #define __inet_aton inet_aton #define __gethostbyaddr_r gethostbyaddr_r #define __gethostbyname2_r gethostbyname2_r #define __qsort_r qsort_r #define __stat64 stat64 void attribute_hidden __check_pf (bool *p1, bool *p2, struct in6addrinfo **in6ai, size_t *in6ailen) { *p1 = *p2 = true; *in6ai = NULL; *in6ailen = 0; } void attribute_hidden __free_in6ai (struct in6addrinfo *ai) { } void attribute_hidden __check_native (uint32_t a1_index, int *a1_native, uint32_t a2_index, int *a2_native) { } int attribute_hidden __idna_to_ascii_lz (const char *input, char **output, int flags) { return 0; } int attribute_hidden __idna_to_unicode_lzlz (const char *input, char **output, int flags) { *output = NULL; return 0; } void attribute_hidden _res_hconf_init (void) { } #undef USE_NSCD #include "getaddrinfo.c" nss_action_list __nss_hosts_database attribute_hidden; /* This is the beginning of the real test code. The above defines (among other things) the function rfc3484_sort. */ #if __BYTE_ORDER == __BIG_ENDIAN # define h(n) n #else # define h(n) __bswap_constant_32 (n) #endif struct sockaddr_in addrs[] = { { .sin_family = AF_INET, .sin_addr = { h (0x0aa85f19) } }, { .sin_family = AF_INET, .sin_addr = { h (0xac105f19) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0000219) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a86d1d) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a85d03) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a82c3d) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a86002) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a802f3) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a80810) } }, { .sin_family = AF_INET, .sin_addr = { h (0xc0a85e02) } } }; #define naddrs (sizeof (addrs) / sizeof (addrs[0])) static struct addrinfo ais[naddrs]; static struct sort_result results[naddrs]; static size_t order[naddrs]; static int expected[naddrs] = { 9, 4, 3, 6, 5, 7, 8, 2, 0, 1 }; ssize_t __getline (char **lineptr, size_t *n, FILE *s) { *lineptr = NULL; *n = 0; return 0; } static int do_test (void) { labels = default_labels; precedence = default_precedence; scopes= default_scopes; struct sockaddr_in so; so.sin_family = AF_INET; so.sin_addr.s_addr = h (0xc0a85f19); /* Clear the rest of the structure to avoid warnings. */ memset (so.sin_zero, '\0', sizeof (so.sin_zero)); for (int i = 0; i < naddrs; ++i) { ais[i].ai_family = AF_INET; ais[i].ai_addr = (struct sockaddr *) &addrs[i]; results[i].dest_addr = &ais[i]; results[i].got_source_addr = true; memcpy(&results[i].source_addr, &so, sizeof (so)); results[i].source_addr_len = sizeof (so); results[i].source_addr_flags = 0; results[i].prefixlen = 8; results[i].index = 0; order[i] = i; } struct sort_result_combo combo = { .results = results, .nresults = naddrs }; qsort_r (order, naddrs, sizeof (order[0]), rfc3484_sort, &combo); int result = 0; for (int i = 0; i < naddrs; ++i) { struct in_addr addr = ((struct sockaddr_in *) (results[order[i]].dest_addr->ai_addr))->sin_addr; int here = memcmp (&addr, &addrs[expected[i]].sin_addr, sizeof (struct in_addr)); printf ("[%d] = %s: %s\n", i, inet_ntoa (addr), here ? "FAIL" : "OK"); result |= here; } return result; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"