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110 | /*
* This file is part of the aMule Project.
*
* Copyright (c) 2011 aMule Team ( admin@amule.org / http://www.amule.org )
*
* Any parts of this program derived from the xMule, lMule or eMule project,
* or contributed by third-party developers are copyrighted by their
* respective authors.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#ifndef _XOPEN_SOURCE
# define _XOPEN_SOURCE 600
#endif
#include <string.h> /* Needed for strerror_r() and size_t */
#ifdef HAVE_ERRNO_H
# include <errno.h> /* Needed for errno */
#endif
#ifndef HAVE_STRERROR_R
# ifdef HAVE_STRERROR
/* Replacement strerror_r() function for systems that don't have any.
Note that this replacement function is NOT thread-safe! */
int mule_strerror_r(int errnum, char *buf, size_t buflen)
{
char *tmp;<--- Variable 'tmp' can be declared as pointer to const
if ((buf == NULL) || (buflen == 0)) {
errno = ERANGE;
return -1;
}
tmp = strerror(errnum);
if (tmp == NULL) {
errno = EINVAL;
return -1;
} else {
strncpy(buf, tmp, buflen - 1);
buf[buflen - 1] = '\0';
if (strlen(tmp) >= buflen) {
errno = ERANGE;
return -1;
}
}
return 0;
}
# else
/* No way to get error description */
int mule_strerror_r()
{
#ifdef HAVE_ERRNO_H
errno = ENOSYS; /* not implemented */
#endif
return -1;
}
# endif
#else
# ifdef STRERROR_R_CHAR_P
/* Replacement strerror_r() function for systems that return a char*. */
int mule_strerror_r(int errnum, char *buf, size_t buflen)
{
char *tmp = strerror_r(errnum, buf, buflen);<--- Variable 'tmp' can be declared as pointer to const
if (tmp == NULL) {
errno = EINVAL;
return -1;
} else if (tmp != buf) {
if ((buf == NULL) || (buflen == 0)) {
errno = ERANGE;
return -1;
} else {
strncpy(buf, tmp, buflen - 1);
buf[buflen - 1] = '\0';
if (strlen(tmp) >= buflen) {
errno = ERANGE;
return -1;
}
}
}
return 0;
}
# else
/* Nothing to do, library strerror_r() is XSI-compliant. */
int mule_strerror_r(int errnum, char *buf, size_t buflen)
{
return strerror_r(errnum, buf, buflen);
}
# endif
#endif
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