mirror of
https://github.com/owntone/owntone-server.git
synced 2024-12-26 23:25:56 -05:00
Remove unused iconv-dependent code.
The code was mainly used by the MP3 scanner.
This commit is contained in:
Julien BLACHE
parent
d8a9772afc
commit
c2ffed5e2b
12
configure.in
12
configure.in
@ -37,14 +37,6 @@ fi
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AC_DEFINE_UNQUOTED(CONFFILE,"${CONFFILE}",Where the config file is)
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use_upnp=false;
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use_iconv=true
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AC_ARG_ENABLE(iconv, AC_HELP_STRING([--enable-iconv], [Enable iconv conversion]),
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[ case "${enableval}" in
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yes) use_iconv=true;;
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no) use_iconv=false;;
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*) AC_MSG_ERROR(bad value ${enableval} for --enable-iconv);;
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esac ])
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AC_ARG_ENABLE(flac, AC_HELP_STRING([--enable-flac], [Enable FLAC support]),
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use_flac=true;
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@ -64,10 +56,6 @@ AM_CONDITIONAL(COND_UPNP,test x$use_upnp = xtrue)
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AC_CHECK_FUNCS(strcasestr strsep)
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dnl Checks for libraries.
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if test x$use_iconv = xtrue; then
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AM_ICONV
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fi
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PKG_CHECK_MODULES(AVAHI, [ avahi-client >= 0.6.24 ])
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PKG_CHECK_MODULES(SQLITE3, [ sqlite3 ],
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AC_DEFINE(HAVE_SQLITE3, 1, [define if sqlite3 is available]))
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@ -17,7 +17,7 @@ endif
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mt_daapd_CPPFLAGS = @AVAHI_CFLAGS@ @SQLITE3_CFLAGS@ @FFMPEG_CFLAGS@ @TAGLIB_CFLAGS@
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mt_daapd_LDADD = @AVAHI_LIBS@ @SQLITE3_LIBS@ @FFMPEG_LIBS@ @FLAC_LIBS@ @TAGLIB_LIBS@ @LIBICONV@ @LIBDL@
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mt_daapd_LDADD = @AVAHI_LIBS@ @SQLITE3_LIBS@ @FFMPEG_LIBS@ @FLAC_LIBS@ @TAGLIB_LIBS@ @LIBDL@
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mt_daapd_SOURCES = main.c daapd.h rend.h webserver.c \
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webserver.h configfile.c configfile.h err.c err.h \
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mp3-scanner.h mp3-scanner.c \
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387
src/util.c
387
src/util.c
@ -19,10 +19,6 @@
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#include <string.h>
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#include <sys/types.h>
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#ifdef HAVE_ICONV
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# include <iconv.h>
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#endif
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#include "daapd.h"
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#include "err.h"
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#include "util.h"
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@ -68,389 +64,6 @@ int util_must_exit(void) {
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return config.stop;
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}
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#ifdef HAVE_ICONV
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int util_utf8toutf16(unsigned char *utf16, int dlen, unsigned char *utf8, int slen) {
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int result;
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DPRINTF(E_DBG,L_MISC,"Converting %s to utf-16le (slen=%d, dlen=%d)\n",utf8,slen,dlen);
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result=util_xtoy(utf16, dlen, utf8, slen, "UTF-8","UTF-16LE");
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DPRINTF(E_DBG,L_MISC,"Result: %d\n",result);
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// _util_hexdump(utf16,32);
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return result;
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}
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int util_utf16toutf8(unsigned char *utf8, int dlen, unsigned char *utf16, int slen) {
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int result;
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DPRINTF(E_DBG,L_MISC,"Converting *something* to utf-8 (slen=%d, dlen=%d)\n",slen,dlen);
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// _util_hexdump(utf16,32);
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result = util_xtoy(utf8, dlen, utf16, slen, "UTF-16LE","UTF-8");
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DPRINTF(E_DBG,L_MISC,"Converted to %s\n",utf8);
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return result;
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}
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int util_utf16_byte_len(unsigned char *utf16) {
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unsigned char *src = utf16;
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int len = 0;
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while(1) {
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if((src[0] == 0) && (src[1]==0))
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return len;
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len += 2;
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src += 2;
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}
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return len; /* ?? */
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}
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unsigned char *util_utf8toutf16_alloc(unsigned char *utf8) {
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unsigned char *utf16;
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utf16 = calloc(1,strlen((char*)utf8) * 4 + 1);
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if(util_xtoy(utf16,strlen((char*)utf8) * 4 + 1, utf8, strlen((char*)utf8),"UTF-8","UTF-16LE")) {
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return utf16;
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}
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free(utf16);
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return NULL;
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}
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unsigned char *util_utf16toutf8_alloc(unsigned char *utf16, int slen) {
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unsigned char *utf8;
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utf8=calloc(1, slen * 2 + 1);
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if(util_xtoy(utf8,slen * 2 + 1,utf16,slen,"UTF-16LE","UTF-8")) {
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return utf8;
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}
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free(utf8);
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return NULL;
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}
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unsigned char *util_xtoutf8_alloc(unsigned char *x, int slen, char *from) {
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unsigned char *utf8;
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utf8 = calloc(1, slen * 4 + 1);
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if(util_xtoy(utf8,slen * 4 + 1, x, slen, from, "UTF-8")) {
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return utf8;
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}
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free(utf8);
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return NULL;
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}
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int util_xtoy(unsigned char *dbuffer, int dlen, unsigned char *sbuffer, int slen, char *from, char *to) {
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iconv_t iv;
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size_t csize;
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/* type punning warnings */
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size_t st_dlen = (size_t)dlen;
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size_t st_slen = (size_t)slen;
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char *st_dbuffer = (char*)dbuffer;
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ICONV_CONST char *st_sbuffer = (char*)sbuffer;
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memset(dbuffer,0,dlen);
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iv=iconv_open(to,from);
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if(iv == (iconv_t)-1) {
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DPRINTF(E_LOG,L_MISC,"iconv error: iconv_open failed with %d\n",errno);
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}
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csize = iconv(iv,&st_sbuffer,&st_slen,
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&st_dbuffer,&st_dlen);
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if(csize == (size_t)-1) {
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switch(errno) {
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case EILSEQ:
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DPRINTF(E_LOG,L_MISC,"iconv error: Invalid multibyte sequence\n");
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break;
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case EINVAL:
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DPRINTF(E_LOG,L_MISC,"iconv error: Incomplete multibyte sequence\n");
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break;
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case E2BIG:
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DPRINTF(E_LOG,L_MISC,"iconv error: Insufficient buffer size\n");
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break;
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default:
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DPRINTF(E_LOG,L_MISC,"iconv error: unknown (%d)\n",errno);
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break;
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}
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}
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iconv_close(iv);
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return (csize != (size_t)-1);
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}
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#else
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/* homerolled conversions */
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int util_utf16_byte_len(unsigned char *utf16) {
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unsigned char *src = utf16;
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int len = 0;
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while(1) {
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if((src[0] == 0) && (src[1]==0))
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return len;
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len += 2;
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src += 2;
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}
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return len; /* ?? */
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}
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/**
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* calculate how long a utf16le string will be once converted
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*/
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int util_utf16toutf8_len(unsigned char *utf16, int len) {
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unsigned char *src = utf16;
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int out_len = 0;
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uint32_t temp_dword;
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while(src+2 <= utf16 + len) {
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temp_dword = src[1] << 8 | src[0];
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if((temp_dword & 0xFC00) == 0xD800) {
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src += 2;
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if(src + 2 <= utf16 + len) {
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out_len += 4;
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} else {
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return -1;
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}
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} else {
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if(temp_dword <= 0x7F)
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out_len += 1;
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else if(temp_dword <= 0x7FF)
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out_len += 2;
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else if(temp_dword <= 0xFFFF)
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out_len += 3;
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}
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src += 2;
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}
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return out_len;
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}
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/**
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* convert utf16 string to utf8. This is a bit naive, but...
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* Since utf-8 can't expand past 4 bytes per code point, and
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* we're converting utf-16, we can't be more than 2n+1 bytes, so
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* we'll just allocate that much.
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*
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* Probably it could be more efficiently calculated, but this will
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* always work. Besides, these are small strings, and will be freed
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* after the db insert.
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*
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* We assume this is utf-16LE, as it comes from windows
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*
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* @param utf16 utf-16 to convert
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* @param len length of utf-16 string
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*/
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int util_utf16toutf8(unsigned char *utf8, int dlen, unsigned char *utf16, int len) {
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unsigned char *src=utf16;
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unsigned char *dst;
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unsigned int w1, w2;
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int bytes;
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int new_len;
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if(!len)
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return FALSE;
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new_len = util_utf16toutf8_len(utf16,len);
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if((new_len == -1) || (dlen <= new_len)) {
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DPRINTF(E_LOG,L_MISC,"Cannot convert %s to utf8; E2BIG (%d vs %d)\n",utf8,new_len,dlen);
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return FALSE;
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}
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dst=utf8;
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while((src+2) <= utf16+len) {
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w1=src[1] << 8 | src[0];
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src += 2;
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if((w1 & 0xFC00) == 0xD800) { // could be surrogate pair
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if(src+2 > utf16+len) {
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DPRINTF(E_INF,L_SCAN,"Invalid utf-16 in file\n");
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return FALSE;
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}
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w2 = src[3] << 8 | src[2];
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if((w2 & 0xFC00) != 0xDC00) {
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DPRINTF(E_INF,L_SCAN,"Invalid utf-16 in file\n");
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return FALSE;
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}
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// get bottom 10 of each
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w1 = w1 & 0x03FF;
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w1 = w1 << 10;
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w1 = w1 | (w2 & 0x03FF);
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// add back the 0x10000
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w1 += 0x10000;
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}
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// now encode the original code point in utf-8
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if (w1 < 0x80) {
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*dst++ = w1;
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bytes=0;
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} else if (w1 < 0x800) {
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*dst++ = 0xC0 | (w1 >> 6);
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bytes=1;
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} else if (w1 < 0x10000) {
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*dst++ = 0xE0 | (w1 >> 12);
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bytes=2;
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} else {
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*dst++ = 0xF0 | (w1 >> 18);
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bytes=3;
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}
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while(bytes) {
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*dst++ = 0x80 | ((w1 >> (6*(bytes-1))) & 0x3f);
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bytes--;
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}
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}
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*dst = '\x0';
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return new_len;
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}
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/**
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* calculate how long a utf8 string will be once converted
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*/
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int util_utf8toutf16_len(unsigned char *utf8) {
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int len,out_len,trailing_bytes;
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unsigned char *src = utf8;
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len=(int)strlen((char *)utf8);
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out_len = 0;
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while(src < utf8 + len) {
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trailing_bytes = 0;
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if((*src & 0xE0) == 0xC0) trailing_bytes = 1;
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else if((*src & 0xF0) == 0xE0) trailing_bytes = 2;
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else if((*src & 0xF8) == 0xF0) trailing_bytes = 3;
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if(src + trailing_bytes > utf8 + len)
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return -1;
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out_len += 2;
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if(trailing_bytes == 3) /* surrogate pair */
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out_len += 2;
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src += (1 + trailing_bytes);
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}
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out_len += 1;
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return out_len;
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}
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unsigned char *util_utf8toutf16_alloc(unsigned char *utf8) {
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unsigned char *out;
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int new_len;
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new_len = util_utf8toutf16_len(utf8);
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if(new_len == -1)
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return NULL;
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out = calloc(1,new_len + 2);
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if(!util_utf8toutf16(out,new_len + 2,utf8,(int)strlen((char*)utf8))) {
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free(out);
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return NULL;
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}
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return out;
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}
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unsigned char *util_utf16touft8_alloc(unsigned char *utf16, int len) {
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unsigned char *out;
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int new_len;
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new_len = util_utf16toutf8_len(utf16,len);
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if(new_len == -1)
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return NULL;
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out = calloc(1,new_len + 1);
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if(!util_utf16toutf8(out,new_len + 1,utf16,len)) {
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free(out);
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return NULL;
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}
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return out;
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}
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int util_utf8toutf16(unsigned char *utf16, int dlen, unsigned char *utf8, int len) {
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unsigned char *src=utf8;
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unsigned char *dst;
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int new_len;
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int trailing_bytes;
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uint32_t utf32;
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uint16_t temp_word;
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len=(int)strlen((char*)utf8); /* ignore passed length, might be wrong! */
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if(!len)
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return FALSE;
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new_len = util_utf8toutf16_len(utf8);
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if((new_len == -1) || (dlen <= (new_len+1))) {
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DPRINTF(E_LOG,L_MISC,"Cannot convert %s to utf16; E2BIG (%d vs %d)\n",utf8,new_len,dlen);
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return FALSE;
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}
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dst=utf16;
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while(src < utf8 + len) {
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utf32=0;
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trailing_bytes=0;
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if((*src & 0xE0) == 0xC0) trailing_bytes = 1;
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else if((*src & 0xF0) == 0xE0) trailing_bytes = 2;
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else if((*src & 0xF8) == 0xF0) trailing_bytes = 3;
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if(src + trailing_bytes > utf8 + len) {
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DPRINTF(E_LOG,L_SCAN,"Invalid UTF8 string\n");
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return FALSE;
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}
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switch(trailing_bytes) {
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case 0:
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utf32 = *src;
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break;
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case 1:
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utf32 = ((src[0] & 0x1F) << 6) |
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(src[1] & 0x3F);
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break;
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case 2:
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utf32 = ((src[0] & 0x0F) << 12) |
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((src[1] & 0x3F) << 6) |
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((src[2] & 0x3F));
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break;
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case 3:
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utf32 = ((src[0] & 0x07) << 18) |
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((src[1] & 0x3F) << 12) |
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((src[2] & 0x3F) << 6) |
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((src[3] & 0x3F));
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break;
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}
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if(utf32 <= 0xFFFF) {
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/* we are encoding LE style... */
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*dst++ = utf32 & 0xFF;
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*dst++ = (utf32 & 0xFF00) >> 8;
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} else {
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/* Encode with surrogates */
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temp_word = 0xD800 | ((utf32 & 0x0FFC00) >> 10);
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*dst++ = temp_word & 0xFF;
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*dst++ = (temp_word & 0xFF00) >> 8;
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temp_word = 0xDC00 | (utf32 & 0x3FF);
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*dst++ = temp_word & 0xFF;
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*dst++ = (temp_word & 0xFF00) >> 8;
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}
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src += (trailing_bytes + 1);
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}
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*dst++ = '\x0';
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*dst = '\x0';
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return new_len;
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}
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#endif
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void util_hexdump(unsigned char *block, int len) {
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char charmap[256];
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int index;
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@ -40,14 +40,6 @@ extern int util_must_exit(void);
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int util_split(char *s, char *delimiters, char ***argvp);
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void util_dispose_split(char **argv);
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extern unsigned char *util_utf8toutf16_alloc(unsigned char *utf8);
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extern unsigned char *util_utf16touft8_alloc(unsigned char *utf16, int slen);
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extern int util_utf8toutf16(unsigned char *utf16, int dlen, unsigned char *utf8, int slen);
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extern int util_utf16toutf8(unsigned char *utf8, int dlen, unsigned char *utf16, int slen);
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extern int util_xtoy(unsigned char *dbuffer, int dlen, unsigned char *sbuffer, int slen, char *from, char *to);
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extern unsigned char *util_xtoutf8_alloc(unsigned char *x,int slen,char *from);
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extern int util_utf16_byte_len(unsigned char *utf16);
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extern void util_hexdump(unsigned char *block, int len);
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extern char *util_vasprintf(char *fmt, va_list ap);
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extern char *util_asprintf(char *fmt, ...);
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