diff options
Diffstat (limited to 'source3/lib/charcnv.c')
| -rw-r--r-- | source3/lib/charcnv.c | 95 |
1 files changed, 61 insertions, 34 deletions
diff --git a/source3/lib/charcnv.c b/source3/lib/charcnv.c index 9bbb8a8507..ebcceef816 100644 --- a/source3/lib/charcnv.c +++ b/source3/lib/charcnv.c @@ -26,32 +26,56 @@ extern int DEBUGLEVEL; static pstring cvtbuf; -static smb_iconv_t - ucs2_to_unix=(smb_iconv_t)-1, /*ucs2 (MS) <-> unix format */ - unix_to_ucs2=(smb_iconv_t)-1, - dos_to_unix=(smb_iconv_t)-1, /*unix format <-> dos codepage*/ - unix_to_dos=(smb_iconv_t)-1; /*for those clients who does not support unicode*/ +static smb_iconv_t conv_handles[NUM_CHARSETS][NUM_CHARSETS]; + +/**************************************************************************** +return the name of a charset to give to iconv() +****************************************************************************/ +static char *charset_name(charset_t ch) +{ + char *ret = NULL; + + if (ch == CH_UCS2) ret = "UCS-2LE"; + else if (ch == CH_UNIX) ret = lp_unix_charset(); + else if (ch == CH_DOS) ret = lp_dos_charset(); + else if (ch == CH_DISPLAY) ret = lp_display_charset(); + + if (!ret || !*ret) ret = "ASCII"; + return ret; +} /**************************************************************************** Initialize iconv conversion descriptors ****************************************************************************/ -void init_iconv(char *unix_charset, char *dos_charset) +void init_iconv(void) { -#define ICONV(descr, from_name, to_name)\ - if(descr!=(smb_iconv_t)-1) smb_iconv_close(descr);\ - descr = smb_iconv_open(to_name, from_name);\ - if(descr==(smb_iconv_t)-1)\ - DEBUG(0,("Conversion from %s to %s is not supported\n",from_name,to_name)); - - if (!unix_charset || !*unix_charset) unix_charset = "ASCII"; - if (!dos_charset || !*dos_charset) dos_charset = "ASCII"; + int c1, c2; + + /* so that charset_name() works we need to get the UNIX<->UCS2 going + first */ + if (!conv_handles[CH_UNIX][CH_UCS2]) { + conv_handles[CH_UNIX][CH_UCS2] = smb_iconv_open("UCS-2LE", "ASCII"); + } + if (!conv_handles[CH_UCS2][CH_UNIX]) { + conv_handles[CH_UCS2][CH_UNIX] = smb_iconv_open("ASCII", "UCS-2LE"); + } - ICONV(ucs2_to_unix, "UCS-2LE", unix_charset) - ICONV(unix_to_ucs2, unix_charset, "UCS-2LE") - ICONV(dos_to_unix, dos_charset, unix_charset) - ICONV(unix_to_dos, unix_charset, dos_charset) -#undef ICONV + for (c1=0;c1<NUM_CHARSETS;c1++) { + for (c2=0;c2<NUM_CHARSETS;c2++) { + char *n1 = charset_name(c1); + char *n2 = charset_name(c2); + if (conv_handles[c1][c2]) { + smb_iconv_close(conv_handles[c1][c2]); + } + conv_handles[c1][c2] = smb_iconv_open(n2,n1); + if (conv_handles[c1][c2] == (smb_iconv_t)-1) { + DEBUG(0,("Conversion from %s to %s not supported\n", + charset_name(c1), charset_name(c2))); + conv_handles[c1][c2] = NULL; + } + } + } } /**************************************************************************** @@ -64,22 +88,25 @@ void init_iconv(char *unix_charset, char *dos_charset) destlen - maximal length allowed for string return the number of bytes occupied in the destination ****************************************************************************/ -static size_t convert_string(smb_iconv_t *descriptor, - void const *src, size_t srclen, - void *dest, size_t destlen) +size_t convert_string(charset_t from, charset_t to, + void const *src, size_t srclen, + void *dest, size_t destlen) { size_t i_len, o_len; size_t retval; char* inbuf = (char*)src; char* outbuf = (char*)dest; static int initialised; - + smb_iconv_t descriptor; + if (!initialised) { initialised = 1; - init_iconv(NULL, NULL); + init_iconv(); } - if (*descriptor == (smb_iconv_t)-1) { + descriptor = conv_handles[from][to]; + + if (descriptor == (smb_iconv_t)-1 || descriptor == (smb_iconv_t)0) { /* conversion not supported, use as is */ int len = MIN(srclen,destlen); memcpy(dest,src,len); @@ -88,7 +115,7 @@ static size_t convert_string(smb_iconv_t *descriptor, i_len=srclen; o_len=destlen; - retval=smb_iconv(*descriptor,&inbuf, &i_len, &outbuf, &o_len); + retval=smb_iconv(descriptor,&inbuf, &i_len, &outbuf, &o_len); if(retval==-1) { char *reason="unknown error"; switch(errno) @@ -109,20 +136,20 @@ int unix_strupper(const char *src, size_t srclen, char *dest, size_t destlen) { int size,len; smb_ucs2_t *buffer=(smb_ucs2_t*)cvtbuf; - size=convert_string(&unix_to_ucs2, src, srclen, buffer, sizeof(cvtbuf)); + size=convert_string(CH_UNIX, CH_UCS2, src, srclen, buffer, sizeof(cvtbuf)); len=size/2; strupper_w(buffer); - return convert_string(&ucs2_to_unix, buffer, size, dest, destlen); + return convert_string(CH_UCS2, CH_UNIX, buffer, size, dest, destlen); } int unix_strlower(const char *src, size_t srclen, char *dest, size_t destlen) { int size,len; smb_ucs2_t *buffer=(smb_ucs2_t*)cvtbuf; - size=convert_string(&unix_to_ucs2, src, srclen, buffer, sizeof(cvtbuf)); + size=convert_string(CH_UNIX, CH_UCS2, src, srclen, buffer, sizeof(cvtbuf)); len=size/2; strlower_w(buffer); - return convert_string(&ucs2_to_unix, buffer, size, dest, destlen); + return convert_string(CH_UCS2, CH_UNIX, buffer, size, dest, destlen); } @@ -162,7 +189,7 @@ int push_ascii(void *dest, const char *src, int dest_len, int flags) src_len++; } - return convert_string(&unix_to_dos, src, src_len, dest, dest_len); + return convert_string(CH_UNIX, CH_DOS, src, src_len, dest, dest_len); } int push_ascii_fstring(void *dest, const char *src) @@ -200,7 +227,7 @@ int pull_ascii(char *dest, const void *src, int dest_len, int src_len, int flags if (flags & STR_TERMINATE) src_len = strlen(src)+1; - ret = convert_string(&dos_to_unix, src, src_len, dest, dest_len); + ret = convert_string(CH_DOS, CH_UNIX, src, src_len, dest, dest_len); if (dest_len) dest[MIN(ret, dest_len-1)] = 0; @@ -258,7 +285,7 @@ int push_ucs2(const void *base_ptr, void *dest, const char *src, int dest_len, i /* ucs2 is always a multiple of 2 bytes */ dest_len &= ~1; - len += convert_string(&unix_to_ucs2, src, src_len, dest, dest_len); + len += convert_string(CH_UNIX, CH_UCS2, src, src_len, dest, dest_len); return len; } @@ -291,7 +318,7 @@ int pull_ucs2(const void *base_ptr, char *dest, const void *src, int dest_len, i /* ucs2 is always a multiple of 2 bytes */ src_len &= ~1; - ret = convert_string(&ucs2_to_unix, src, src_len, dest, dest_len); + ret = convert_string(CH_UCS2, CH_UNIX, src, src_len, dest, dest_len); if (dest_len) dest[MIN(ret, dest_len-1)] = 0; return src_len; |