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-rw-r--r--inet/inet_ntoa.c69
1 files changed, 5 insertions, 64 deletions
diff --git a/inet/inet_ntoa.c b/inet/inet_ntoa.c
index 889435dd10..38794957c2 100644
--- a/inet/inet_ntoa.c
+++ b/inet/inet_ntoa.c
@@ -21,78 +21,19 @@
#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);
+ static buffer. We relax this a bit in that we allow one buffer for
+ each thread. */
+static __thread char buffer[18];
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 *) &in;
- __snprintf (buffer, 18, "%d.%d.%d.%d",
+ unsigned char *bytes = (unsigned char *) &in;
+ __snprintf (buffer, sizeof (buffer), "%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);
-}