diff options
Diffstat (limited to 'newlib/libc/sys/linux/net/inet_ntoa.c')
-rw-r--r-- | newlib/libc/sys/linux/net/inet_ntoa.c | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/newlib/libc/sys/linux/net/inet_ntoa.c b/newlib/libc/sys/linux/net/inet_ntoa.c deleted file mode 100644 index b0b7a1535..000000000 --- a/newlib/libc/sys/linux/net/inet_ntoa.c +++ /dev/null @@ -1,98 +0,0 @@ -/* Convert Inet number to ASCII representation. - Copyright (C) 1997, 1998, 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. - - 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 <stdio.h> -#include <stdlib.h> -#include <arpa/inet.h> -#include <bits/libc-lock.h> - -/* The interface of this function is completely stupid, it requires a - static buffer. We relax this a bit in that we allow at least one - buffer for each thread. */ - -/* This is the key for the thread specific memory. */ -static __libc_key_t key; - -/* If nonzero the key allocation failed and we should better use a - static buffer than fail. */ -static char local_buf[18]; -static char *static_buf; - -/* Destructor for the thread-specific data. */ -static void init (void); -static void free_key_mem (void *mem); - - -char * -inet_ntoa (struct in_addr in) -{ - __libc_once_define (static, once); - char *buffer; - unsigned char *bytes; - - /* If we have not yet initialized the buffer do it now. */ - __libc_once (once, init); - - if (static_buf != NULL) - buffer = static_buf; - else - { - /* We don't use the static buffer and so we have a key. Use it - to get the thread-specific buffer. */ - buffer = __libc_getspecific (key); - if (buffer == NULL) - { - /* No buffer allocated so far. */ - buffer = malloc (18); - if (buffer == NULL) - /* No more memory available. We use the static buffer. */ - buffer = local_buf; - else - __libc_setspecific (key, buffer); - } - } - - bytes = (unsigned char *) ∈ - snprintf (buffer, 18, "%d.%d.%d.%d", - bytes[0], bytes[1], bytes[2], bytes[3]); - - return buffer; -} - - -/* Initialize buffer. */ -static void -init (void) -{ - if (__libc_key_create (&key, free_key_mem)) - /* Creating the key failed. This means something really went - wrong. In any case use a static buffer which is better than - nothing. */ - static_buf = local_buf; -} - - -/* Free the thread specific data, this is done if a thread terminates. */ -static void -free_key_mem (void *mem) -{ - free (mem); - __libc_setspecific (key, NULL); -} |