diff options
Diffstat (limited to 'lib/bind/bsd/strerror.c')
| -rw-r--r-- | lib/bind/bsd/strerror.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/lib/bind/bsd/strerror.c b/lib/bind/bsd/strerror.c new file mode 100644 index 0000000..5743398 --- /dev/null +++ b/lib/bind/bsd/strerror.c @@ -0,0 +1,92 @@ +#if defined(LIBC_SCCS) && !defined(lint) +static const char sccsid[] = "@(#)strerror.c 8.1 (Berkeley) 6/4/93"; +static const char rcsid[] = "$Id: strerror.c,v 1.4.332.1 2005/04/27 05:00:46 sra Exp $"; +#endif /* LIBC_SCCS and not lint */ + +/* + * Copyright (c) 1988, 1993 + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 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. + */ + +#include "port_before.h" + +#include <sys/param.h> +#include <sys/types.h> + +#include <string.h> + +#include "port_after.h" + +#ifndef NEED_STRERROR +int __strerror_unneeded__; +#else + +#ifdef USE_SYSERROR_LIST +extern int sys_nerr; +extern char *sys_errlist[]; +#endif + +const char * +isc_strerror(int num) { +#define UPREFIX "Unknown error: " + static char ebuf[40] = UPREFIX; /*%< 64-bit number + slop */ + u_int errnum; + char *p, *t; + const char *ret; + char tmp[40]; + + errnum = num; /*%< convert to unsigned */ +#ifdef USE_SYSERROR_LIST + if (errnum < sys_nerr) + return (sys_errlist[errnum]); +#else +#undef strerror + ret = strerror(num); /*%< call strerror() in libc */ + if (ret != NULL) + return(ret); +#endif + + /* Do this by hand, so we don't include stdio(3). */ + t = tmp; + do { + *t++ = "0123456789"[errnum % 10]; + } while (errnum /= 10); + for (p = ebuf + sizeof(UPREFIX) - 1;;) { + *p++ = *--t; + if (t <= tmp) + break; + } + return (ebuf); +} + +#endif /*NEED_STRERROR*/ + +/*! \file */ |
