39 lines
832 B
C
39 lines
832 B
C
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <stdio.h>
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static void test(const char *);
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int
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main() {
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test("192.5.4.0/23");
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test("192.5.4.0");
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test("192.5.5.1");
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test("192.5.5.1/23");
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test("192.5.5.1/24");
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test("192.5.5.1/28");
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test("192.5.5.1/32");
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return (0);
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}
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static void
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test(const char *input) {
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int bits;
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u_char temp[sizeof (struct in_addr)];
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char output[sizeof "255.255.255.255/32"];
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memset(temp, 0x5e, sizeof temp);
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if (inet_cidr_pton(AF_INET, input, temp, &bits) < 0) {
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perror(input);
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exit(1);
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}
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if (inet_cidr_ntop(AF_INET, temp, bits, output, sizeof output)==NULL){
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perror("inet_cidr_ntop");
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exit(1);
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}
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printf("input '%s', temp '%x %x %x %x', bits %d, output '%s'\n",
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input, temp[0], temp[1], temp[2], temp[3], bits, output);
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}
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