diff options
Diffstat (limited to 'lib/mbrtowc.c')
| -rw-r--r-- | lib/mbrtowc.c | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/lib/mbrtowc.c b/lib/mbrtowc.c index 31f229c..a5d61a0 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 } |