X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fbase64.c;h=a328e1fdd222ccfc917fe29d94e5fe6c11cb97f8;hb=13e58d5dc1d7649902f96365d295a6f1737d3630;hp=89e83e6499358b4c402daff849ed48cabb61d394;hpb=349d7fe0e307d59d508b3579317ee8d4eacfeb9c;p=gnulib.git
diff --git a/lib/base64.c b/lib/base64.c
index 89e83e649..a328e1fdd 100644
--- a/lib/base64.c
+++ b/lib/base64.c
@@ -1,5 +1,5 @@
/* base64.c -- Encode binary data using printable characters.
- Copyright (C) 1999-2001, 2004-2006, 2009-2011 Free Software Foundation, Inc.
+ Copyright (C) 1999-2001, 2004-2006, 2009-2012 Free Software Foundation, Inc.
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
@@ -12,14 +12,13 @@
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 Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program; if not, see . */
/* Written by Simon Josefsson. Partially adapted from GNU MailUtils
* (mailbox/filter_trans.c, as of 2004-11-28). Improved by review
* from Paul Eggert, Bruno Haible, and Stepan Kasal.
*
- * See also RFC 3548 .
+ * See also RFC 4648 .
*
* Be careful with error checking. Here is how you would typically
* use these functions:
@@ -53,16 +52,8 @@
#include
-/* The attribute __const__ was added in gcc 2.95. */
-#undef _GL_ATTRIBUTE_CONST
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
-# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
-#else
-# define _GL_ATTRIBUTE_CONST /* empty */
-#endif
-
/* C89 compliant way to cast 'char' to 'unsigned char'. */
-static inline unsigned char
+static unsigned char
to_uchar (char ch)
{
return ch;
@@ -303,7 +294,7 @@ static const signed char b64[0x100] = {
/* Return true if CH is a character from the Base64 alphabet, and
false otherwise. Note that '=' is padding and not considered to be
part of the alphabet. */
-bool _GL_ATTRIBUTE_CONST
+bool
isbase64 (char ch)
{
return uchar_in_range (to_uchar (ch)) && 0 <= b64[to_uchar (ch)];
@@ -323,7 +314,7 @@ base64_decode_ctx_init (struct base64_decode_context *ctx)
and return CTX->buf. In either case, advance *IN to point to the byte
after the last one processed, and set *N_NON_NEWLINE to the number of
verified non-newline bytes accessible through the returned pointer. */
-static inline char *
+static char *
get_4 (struct base64_decode_context *ctx,
char const *restrict *in, char const *restrict in_end,
size_t *n_non_newline)
@@ -377,7 +368,7 @@ get_4 (struct base64_decode_context *ctx,
as many bytes as possible are written to *OUT. On return, advance
*OUT to point to the byte after the last one written, and decrement
*OUTLEN to reflect the number of bytes remaining in *OUT. */
-static inline bool
+static bool
decode_4 (char const *restrict in, size_t inlen,
char *restrict *outp, size_t *outleft)
{
@@ -560,10 +551,10 @@ base64_decode_alloc_ctx (struct base64_decode_context *ctx,
{
/* This may allocate a few bytes too many, depending on input,
but it's not worth the extra CPU time to compute the exact size.
- The exact size is 3 * inlen / 4, minus 1 if the input ends
- with "=" and minus another 1 if the input ends with "==".
+ The exact size is 3 * (inlen + (ctx ? ctx->i : 0)) / 4, minus 1 if the
+ input ends with "=" and minus another 1 if the input ends with "==".
Dividing before multiplying avoids the possibility of overflow. */
- size_t needlen = 3 * (inlen / 4) + 2;
+ size_t needlen = 3 * (inlen / 4) + 3;
*out = malloc (needlen);
if (!*out)