67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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/* uname(3) - describe the machine. Author: Kees J. Bot
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* 5 Dec 1992
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*/
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#include <sys/cdefs.h>
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#include "namespace.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/utsname.h>
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#ifdef __weak_alias
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__weak_alias(uname, _uname)
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#endif
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#define uts_get(field, string) \
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if (sysuname(_UTS_GET, field, name->string, sizeof(name->string)) < 0) \
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return -1; \
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name->string[sizeof(name->string)-1]= 0;
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int uname(struct utsname *name)
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{
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int hf, n, err;
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char *nl;
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/* Get each of the strings with a sysuname call. Null terminate them,
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* because the buffers in the kernel may grow before this and the
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* programs are recompiled.
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*/
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uts_get(_UTS_SYSNAME, sysname);
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uts_get(_UTS_NODENAME, nodename);
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uts_get(_UTS_RELEASE, release);
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uts_get(_UTS_VERSION, version);
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uts_get(_UTS_MACHINE, machine);
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uts_get(_UTS_ARCH, arch);
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#if 0
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uts_get(_UTS_KERNEL, kernel);
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uts_get(_UTS_HOSTNAME, hostname);
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uts_get(_UTS_BUS, bus);
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#endif
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/* Try to read the node name from /etc/hostname.file. This information
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* should be stored in the kernel.
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*/
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if ((hf = open("/etc/hostname.file", O_RDONLY)) < 0) {
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if (errno != ENOENT) return(-1);
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} else {
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n = read(hf, name->nodename, sizeof(name->nodename) - 1);
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err = errno;
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close(hf);
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errno = err;
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if (n < 0) return(-1);
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name->nodename[n] = 0;
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if ((nl = strchr(name->nodename, '\n')) != NULL) {
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memset(nl, 0, (name->nodename +
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sizeof(name->nodename)) - nl);
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}
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}
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return 0;
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}
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/*
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* $PchId: _uname.c,v 1.4 1995/11/27 20:09:08 philip Exp $
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*/
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