26 lines
400 B
C
26 lines
400 B
C
/* posix */
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <string.h>
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int
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gethostname(char *name, int namelen)
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{
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int n, fd;
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char buf[128];
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fd = open("/dev/sysname", O_RDONLY);
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if(fd < 0)
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return -1;
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n = read(fd, buf, sizeof(buf)-1);
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close(fd);
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if(n <= 0)
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return -1;
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buf[n] = 0;
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strncpy(name, buf, namelen);
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name[namelen-1] = 0;
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return 0;
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}
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