diff options
Diffstat (limited to 'lib/libc/gen/__xuname.c')
| -rw-r--r-- | lib/libc/gen/__xuname.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/lib/libc/gen/__xuname.c b/lib/libc/gen/__xuname.c new file mode 100644 index 0000000..6f7d92a --- /dev/null +++ b/lib/libc/gen/__xuname.c @@ -0,0 +1,146 @@ +/*- + * Copyright (c) 1994 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +/*static char sccsid[] = "From: @(#)uname.c 8.1 (Berkeley) 1/4/94";*/ +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/sysctl.h> +#include <sys/utsname.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> + +int +__xuname(int namesize, void *namebuf) +{ + int mib[2], rval; + size_t len; + char *p, *q; + int oerrno; + + rval = 0; + q = (char *)namebuf; + + mib[0] = CTL_KERN; + + if ((p = getenv("UNAME_s"))) + strlcpy(q, p, namesize); + else { + mib[1] = KERN_OSTYPE; + len = namesize; + oerrno = errno; + if (sysctl(mib, 2, q, &len, NULL, 0) == -1) { + if (errno == ENOMEM) + errno = oerrno; + else + rval = -1; + } + q[namesize - 1] = '\0'; + } + q += namesize; + + mib[1] = KERN_HOSTNAME; + len = namesize; + oerrno = errno; + if (sysctl(mib, 2, q, &len, NULL, 0) == -1) { + if (errno == ENOMEM) + errno = oerrno; + else + rval = -1; + } + q[namesize - 1] = '\0'; + q += namesize; + + if ((p = getenv("UNAME_r"))) + strlcpy(q, p, namesize); + else { + mib[1] = KERN_OSRELEASE; + len = namesize; + oerrno = errno; + if (sysctl(mib, 2, q, &len, NULL, 0) == -1) { + if (errno == ENOMEM) + errno = oerrno; + else + rval = -1; + } + q[namesize - 1] = '\0'; + } + q += namesize; + + if ((p = getenv("UNAME_v"))) + strlcpy(q, p, namesize); + else { + + /* + * The version may have newlines in it, turn them into + * spaces. + */ + mib[1] = KERN_VERSION; + len = namesize; + oerrno = errno; + if (sysctl(mib, 2, q, &len, NULL, 0) == -1) { + if (errno == ENOMEM) + errno = oerrno; + else + rval = -1; + } + q[namesize - 1] = '\0'; + for (p = q; len--; ++p) { + if (*p == '\n' || *p == '\t') { + if (len > 1) + *p = ' '; + else + *p = '\0'; + } + } + } + q += namesize; + + if ((p = getenv("UNAME_m"))) + strlcpy(q, p, namesize); + else { + mib[0] = CTL_HW; + mib[1] = HW_MACHINE; + len = namesize; + oerrno = errno; + if (sysctl(mib, 2, q, &len, NULL, 0) == -1) { + if (errno == ENOMEM) + errno = oerrno; + else + rval = -1; + } + q[namesize - 1] = '\0'; + } + + return (rval); +} |
