24 lines
517 B
C
24 lines
517 B
C
#include <isinetaddr.h>
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#include <stdio.h>
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#include <stdlib.h>
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const char *strings[] = {
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"127.0.0.1", "1.1.1.1", "0.0.0.0",
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"foobar", "0.0.0.0.0"
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};
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int
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main(void)
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{
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const char *str;
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const int i = sizeof(strings) / sizeof(strings[0]);
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for (int j = 0; j < i; j++) {
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str = strings[j];
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if (isinetaddr(str)) {
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printf("%s is a valid IPv4 address\n", str);
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} else {
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printf("%s is an invalid IPv4 address\n", str);
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}
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}
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return EXIT_SUCCESS;
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}
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