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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [net/] [getnssent.c] - Rev 262
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/* Copyright (C) 2000, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <errno.h> #include <stdlib.h> #include <netdb.h> #include "nsswitch.h" void * __nss_getent (getent_r_function func, void **resbuf, char **buffer, size_t buflen, size_t *buffer_size, int *h_errnop) { void *result; if (*buffer == NULL) { *buffer_size = buflen; *buffer = malloc (*buffer_size); } while (buffer != NULL && func (resbuf, *buffer, *buffer_size, &result, h_errnop) == ERANGE && (h_errnop == NULL || *h_errnop == NETDB_INTERNAL)) { char *new_buf; *buffer_size *= 2; new_buf = realloc (*buffer, *buffer_size); if (new_buf == NULL) { /* We are out of memory. Free the current buffer so that the process gets a chance for a normal termination. */ int save = errno; free (*buffer); __set_errno (save); } *buffer = new_buf; } if (*buffer == NULL) result = NULL; return result; }
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