calmsacibis995
37 lines
679 B
C
37 lines
679 B
C
#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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/*ARGSUSED*/
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main(int argc, char **argv)
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{
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char *name;
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char host[MAXHOSTNAMELEN];
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struct hostent *hep = NULL;
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if (argc == 1) {
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(void)gethostname(host, MAXHOSTNAMELEN);
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name = host;
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}
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else if (argc == 2 && argv[1][0] != '-')
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name = argv[1];
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else {
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fprintf(stderr, "Usage: pmhostname [hostname]\n");
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exit(0);
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}
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hep = gethostbyname(name);
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if (hep == NULL)
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printf("%s\n", name);
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else
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printf("%s\n", hep->h_name);
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exit(0);
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/*NOTREACHED*/
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}
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