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detect strerror_r and if not there, provide it

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This commit is contained in:
Love Hornquist Astrand
2009-10-12 09:01:55 -07:00
parent f0caeb7865
commit fb35ca4026
3 changed files with 62 additions and 0 deletions
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1
cf/roken-frag.m4
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@@ -354,6 +354,7 @@ AC_BROKEN([ \
strcasecmp \
strdup \
strerror \
strerror_r \
strftime \
strlcat \
strlcpy \

6
lib/roken/roken.h.in
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@@ -306,6 +306,12 @@ int ROKEN_LIB_FUNCTION getdtablesize(void);
char * ROKEN_LIB_FUNCTION strerror(int);
#endif
#if !defined(HAVE_STRERROR) && !defined(strerror)
#define strerror_r rk_strerror_r
int ROKEN_LIB_FUNCTION strerror_r(int, char *, size_t);
#endif
#if !defined(HAVE_HSTRERROR) || defined(NEED_HSTRERROR_PROTO)
#ifndef HAVE_HSTRERROR
#define hstrerror rk_hstrerror

55
lib/roken/strerror_r.c Normal file
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@@ -0,0 +1,55 @@
/*
* Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* 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. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 <config.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
extern int sys_nerr;
extern char *sys_errlist[];
char* ROKEN_LIB_FUNCTION
strerror_r(int eno, char *strerrbuf, size_t buflen)
{
int ret;
if(eno < 0 || eno >= sys_nerr) {
snprintf(strerrbuf, buflen, "Error %d occurred.", eno);
return EINVAL;
}
ret = snprintf(strerrbuf, buflen, "%s", sys_errlist[eno]);
if (ret > buflen)
return ERANGE;
return 0;
}