36 lines
578 B
C
36 lines
578 B
C
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <unistd.h>
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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 <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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static const char *int2ip(unsigned int ip)
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{
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static char s[16];
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sprintf(s, "%d.%d.%d.%d", ip >> 24, ip << 8 >> 24, ip << 16 >> 24, ip << 24 >> 24);
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return s;
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}
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int main(int argc, char *argv[])
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{
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if (argc < 2) {
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perror("need hex ip address");
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exit(1);
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}
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unsigned int ip = 0;
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sscanf(argv[1], "%X", &ip);
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printf("%s\n", int2ip(ip));
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return 0;
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}
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