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authorUlrich Drepper <drepper@redhat.com>2005-02-22 01:25:57 +0000
committerUlrich Drepper <drepper@redhat.com>2005-02-22 01:25:57 +0000
commit777bc09586f66bbc38741dcad44a56db74e90e3b (patch)
treef38fd5133ab242c67dc2f9b0b3413de43ca7426a /libidn/toutf8.c
parent4379b403412eff757728a57d33bfdd66eebda62a (diff)
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* iconvme.h: New file, extracted from toutf8.c but improved.
* iconvme.c: New file. * toutf8.c: Include stringprep.h first, to make the compiler check that stringprep.h is standalone. Improve comments. Replace #include of errno.h and sys/param.h with iconvme.h. Don't define ICONV_CONST. (stringprep_convert): Rewrite to use iconvme.h.
Diffstat (limited to 'libidn/toutf8.c')
-rw-r--r--libidn/toutf8.c168
1 files changed, 30 insertions, 138 deletions
diff --git a/libidn/toutf8.c b/libidn/toutf8.c
index 262f252..dad47c9 100644
--- a/libidn/toutf8.c
+++ b/libidn/toutf8.c
@@ -1,5 +1,5 @@
-/* toutf8.c Convert strings from system locale into UTF-8.
- * Copyright (C) 2002, 2003, 2004 Simon Josefsson
+/* toutf8.c --- Convert strings from system locale into UTF-8.
+ * Copyright (C) 2002, 2003, 2004, 2005 Simon Josefsson
*
* This file is part of GNU Libidn.
*
@@ -23,33 +23,36 @@
# include "config.h"
#endif
+/* Get prototypes. */
+#include "stringprep.h"
+
+/* Get fprintf. */
#include <stdio.h>
+
+/* Get getenv. */
#include <stdlib.h>
+
+/* Get strlen. */
#include <string.h>
-#include <errno.h>
-#include <sys/param.h>
-#include "stringprep.h"
+/* Get iconv_string. */
+#include "iconvme.h"
#ifdef _LIBC
# define HAVE_ICONV 1
# define LOCALE_WORKS 1
-# define ICONV_CONST
#endif
-#ifdef HAVE_ICONV
-# include <iconv.h>
-
-# if LOCALE_WORKS
-# include <langinfo.h>
-# include <locale.h>
-# endif
+#if LOCALE_WORKS
+# include <langinfo.h>
+# include <locale.h>
+#endif
-# ifdef _LIBC
-# define stringprep_locale_charset() nl_langinfo (CODESET)
-# else
+#ifdef _LIBC
+# define stringprep_locale_charset() nl_langinfo (CODESET)
+#else
/**
- * stringprep_locale_charset:
+ * stringprep_locale_charset - return charset used in current locale
*
* Find out current locale charset. The function respect the CHARSET
* environment variable, but typically uses nl_langinfo(CODESET) when
@@ -76,19 +79,19 @@ stringprep_locale_charset (void)
if (charset && *charset)
return charset;
-# ifdef LOCALE_WORKS
+# ifdef LOCALE_WORKS
charset = nl_langinfo (CODESET);
if (charset && *charset)
return charset;
-# endif
+# endif
return "ASCII";
}
-# endif
+#endif
/**
- * stringprep_convert:
+ * stringprep_convert - encode string using new character set
* @str: input zero-terminated string.
* @to_codeset: name of destination character set.
* @from_codeset: name of origin character set, as used by @str.
@@ -103,132 +106,21 @@ char *
stringprep_convert (const char *str,
const char *to_codeset, const char *from_codeset)
{
- iconv_t cd;
- char *dest;
- char *outp;
- ICONV_CONST char *p;
- size_t inbytes_remaining;
- size_t outbytes_remaining;
- size_t err;
- size_t outbuf_size;
- int have_error = 0;
-
- if (strcmp (to_codeset, from_codeset) == 0)
- {
-#if defined HAVE_STRDUP || defined _LIBC
- return strdup (str);
+#if HAVE_ICONV
+ return iconv_string (str, from_codeset, to_codeset);
#else
- char *p;
- p = malloc (strlen (str) + 1);
- if (!p)
- return NULL;
- return strcpy (p, str);
-#endif
- }
-
- cd = iconv_open (to_codeset, from_codeset);
-
- if (cd == (iconv_t) - 1)
- return NULL;
-
- p = (ICONV_CONST char *) str;
-
- inbytes_remaining = strlen (p);
- /* Guess the maximum length the output string can have. */
- outbuf_size = (inbytes_remaining + 1) * MAX (7, MB_CUR_MAX);
-
- outp = dest = malloc (outbuf_size);
- if (dest == NULL)
- goto out;
- outbytes_remaining = outbuf_size - 1; /* -1 for NUL */
-
-again:
-
- err = iconv (cd, (ICONV_CONST char **) &p, &inbytes_remaining,
- &outp, &outbytes_remaining);
-
- if (err == (size_t) - 1)
- {
- switch (errno)
- {
- case EINVAL:
- /* Incomplete text, do not report an error */
- break;
-
- case E2BIG:
- {
- size_t used = outp - dest;
- char *newdest;
-
- outbuf_size *= 2;
- newdest = realloc (dest, outbuf_size);
- if (newdest == NULL)
- {
- have_error = 1;
- goto out;
- }
- dest = newdest;
-
- outp = dest + used;
- outbytes_remaining = outbuf_size - used - 1; /* -1 for NUL */
-
- goto again;
- }
- break;
-
- case EILSEQ:
- have_error = 1;
- break;
-
- default:
- have_error = 1;
- break;
- }
- }
-
- *outp = '\0';
-
- if (*p != '\0')
- have_error = 1;
-
- out:
- iconv_close (cd);
-
- if (have_error)
- {
- free (dest);
- dest = NULL;
- }
-
- return dest;
-}
-
-#else /* HAVE_ICONV */
-
-const char *
-stringprep_locale_charset ()
-{
- return "ASCII";
-}
-
-char *
-stringprep_convert (const char *str,
- const char *to_codeset, const char *from_codeset)
-{
char *p;
fprintf (stderr, "libidn: warning: libiconv not installed, cannot "
"convert data to UTF-8\n");
p = malloc (strlen (str) + 1);
if (!p)
return NULL;
- strcpy (p, str);
- return p;
+ return strcpy (p, str);
+#endif
}
-#endif /* HAVE_ICONV */
-
/**
- * stringprep_locale_to_utf8:
+ * stringprep_locale_to_utf8 - convert locale encoded string to UTF-8
* @str: input zero terminated string.
*
* Convert string encoded in the locale's character set into UTF-8 by
@@ -244,7 +136,7 @@ stringprep_locale_to_utf8 (const char *str)
}
/**
- * stringprep_utf8_to_locale:
+ * stringprep_utf8_to_locale - encode UTF-8 string to locale encoding
* @str: input zero terminated string.
*
* Convert string encoded in UTF-8 into the locale's character set by