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authorManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
committerManuel A. Fernandez Montecelo <manuel.montezelo@gmail.com>2016-05-26 16:48:15 +0100
commit5f2b09982312c98863eb9a8dfe2c608b81f58259 (patch)
treee5d38581c2f36e1cca02efedd2d85044d77f76f9 /lib/mbrtowc.c
parent3e0814cd9862b89c7a39672672937477bd87ddfb (diff)
Imported Upstream version 0.9.6upstream/0.9.6
Diffstat (limited to 'lib/mbrtowc.c')
-rw-r--r--lib/mbrtowc.c53
1 files changed, 37 insertions, 16 deletions
diff --git a/lib/mbrtowc.c b/lib/mbrtowc.c
index 31f229cc..a5d61a06 100644
--- a/lib/mbrtowc.c
+++ b/lib/mbrtowc.c
@@ -1,5 +1,5 @@
/* Convert multibyte character to wide character.
- Copyright (C) 1999-2002, 2005-2010 Free Software Foundation, Inc.
+ Copyright (C) 1999-2002, 2005-2015 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2008.
This program is free software: you can redistribute it and/or modify
@@ -40,9 +40,6 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
{
char *pstate = (char *)ps;
- if (pstate == NULL)
- pstate = internal_state;
-
if (s == NULL)
{
pwc = NULL;
@@ -54,6 +51,10 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
return (size_t)(-2);
/* Here n > 0. */
+
+ if (pstate == NULL)
+ pstate = internal_state;
+
{
size_t nstate = pstate[0];
char buf[4];
@@ -91,7 +92,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
/* Here m > 0. */
-# if __GLIBC__
+# if __GLIBC__ || defined __UCLIBC__
/* Work around bug <http://sourceware.org/bugzilla/show_bug.cgi?id=9674> */
mbtowc (NULL, NULL, 0);
# endif
@@ -127,7 +128,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
{
const char *encoding = locale_charset ();
- if (STREQ (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))
+ if (STREQ_OPT (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0))
{
/* Cf. unistr/u8-mblen.c. */
unsigned char c = (unsigned char) p[0];
@@ -184,7 +185,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
/* As a reference for this code, you can use the GNU libiconv
implementation. Look for uses of the RET_TOOFEW macro. */
- if (STREQ (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0))
+ if (STREQ_OPT (encoding,
+ "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0))
{
if (m == 1)
{
@@ -207,9 +209,12 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
}
goto invalid;
}
- if (STREQ (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
- || STREQ (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
- || STREQ (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0))
+ if (STREQ_OPT (encoding,
+ "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0)
+ || STREQ_OPT (encoding,
+ "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0)
+ || STREQ_OPT (encoding,
+ "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0))
{
if (m == 1)
{
@@ -220,7 +225,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
}
goto invalid;
}
- if (STREQ (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0))
+ if (STREQ_OPT (encoding,
+ "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0))
{
if (m == 1)
{
@@ -238,7 +244,8 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
}
goto invalid;
}
- if (STREQ (encoding, "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0))
+ if (STREQ_OPT (encoding,
+ "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0))
{
if (m == 1)
{
@@ -271,7 +278,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
}
goto invalid;
}
- if (STREQ (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0))
+ if (STREQ_OPT (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0))
{
if (m == 1)
{
@@ -321,7 +328,7 @@ mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
size_t
rpl_mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
{
-# if MBRTOWC_NULL_ARG_BUG || MBRTOWC_RETVAL_BUG
+# if MBRTOWC_NULL_ARG2_BUG || MBRTOWC_RETVAL_BUG || MBRTOWC_EMPTY_INPUT_BUG
if (s == NULL)
{
pwc = NULL;
@@ -330,11 +337,16 @@ rpl_mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
}
# endif
+# if MBRTOWC_EMPTY_INPUT_BUG
+ if (n == 0)
+ return (size_t) -2;
+# endif
+
# if MBRTOWC_RETVAL_BUG
{
static mbstate_t internal_state;
- /* Override mbrtowc's internal state. We can not call mbsinit() on the
+ /* Override mbrtowc's internal state. We cannot call mbsinit() on the
hidden internal state, but we can call it on our variable. */
if (ps == NULL)
ps = &internal_state;
@@ -379,7 +391,16 @@ rpl_mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
return ret;
}
# else
- return mbrtowc (pwc, s, n, ps);
+ {
+# if MBRTOWC_NULL_ARG1_BUG
+ wchar_t dummy;
+
+ if (pwc == NULL)
+ pwc = &dummy;
+# endif
+
+ return mbrtowc (pwc, s, n, ps);
+ }
# endif
}