1 files changed, 118 insertions, 1 deletions

diff --git a/mbbsd/convert.c b/mbbsd/convert.c
index 141548d1..6ced7d2a 100644
--- a/mbbsd/convert.c
+++ b/mbbsd/convert.c
@@ -4,9 +4,11 @@
  * The following code is copied and modified from "autoconvert" with GPL.
  */
 
-#ifdef GB_CONVERT
+#ifdef CONVERT
 
 #include "convert.h"
+#include "iconv.h"
+
 
 char *hzconvert(char *, int *, char *, void (*dbcvrt)());
 
@@ -15,6 +17,8 @@ extern const unsigned char GtoB[], BtoG[];
 #define	c1	(unsigned char)(s[0])
 #define	c2	(unsigned char)(s[1])
 
+/* Convert: Big5 <-> GB */
+
 static void g2b(char *s)
 {
     unsigned int i;
@@ -74,4 +78,117 @@ unsigned char *big2gb(unsigned char *s, int plen)
     unsigned char c = 0;
     return hzconvert(s, &plen, &c, b2g);
 }
+
+int gb_converting_read(int fd, void *buf, size_t count)
+{
+    int len = read(fd, buf, count);
+    if (len >= 0)
+	gb2big(buf, len);
+    return len;
+}
+
+int gb_converting_write(int fd, void *buf, size_t count)
+{
+    big2gb(buf, count);
+    return write(fd, buf, count);
+}
+
+/* Convert: Big5 <-> Unicode */
+
+/**************************/
+static iconv_t big2ucs, ucs2big;
+
+int ucs_converting_init(void)
+{
+    big2ucs = iconv_open("utf8", "big5");
+    ucs2big = iconv_open("big5", "utf8");
+    return (big2ucs < 0 || ucs2big < 0);
+}
+
+int str_iconv(iconv_t desc, char *src, int srclen)
+{
+    int iconv_ret;
+    /* Start translation */
+    while (srclen > 0) {
+	iconv_ret = iconv(desc, (const char* *)&src, &srclen, &src, &srclen);
+	// deslen - 1 ?? iconv_ret = iconv(desc, (const char* *)&src, &srclen, &src, &srclen);
+	if (iconv_ret  != 0) {
+	    switch(errno) {
+		case EILSEQ:
+		    /* forward that byte */
+		    src++; srclen--;
+		    break;
+		    /* incomplete multibyte happened */
+		case EINVAL:
+		    /* forward that byte (maybe wrong)*/
+		    src++; srclen--;
+		    break;
+		    /* des no rooms */
+		case E2BIG:
+		    /* break out the while loop */
+		    srclen = 0;
+		    break;
+	    }
+	}
+    }
+    *src= '\0';
+    return srclen;
+}
+
+//int str_iconv(iconv_t desc, char *src, int srclen)
+//{
+//    deslen--;	/* keep space for '\0' */
+//    deslen_old = deslen;
+//
+//    /* Start translation */
+//    while (srclen > 0 && deslen > 0) {
+//	iconv_ret = iconv(desc, (const char* *)&src, &srclen, &des, &deslen);
+//	if (iconv_ret  != 0) {
+//	    switch(errno) {
+//		case EILSEQ:
+//		    /* forward that byte */
+//		    *des = *src;
+//		    src++; srclen--;
+//		    des++; deslen--;
+//		    break;
+//		    /* incomplete multibyte happened */
+//		case EINVAL:
+//		    /* forward that byte (maybe wrong)*/
+//		    *des = *src;
+//		    src++; srclen--;
+//		    des++; deslen--;
+//		    break;
+//		    /* des no rooms */
+//		case E2BIG:
+//		    /* break out the while loop */
+//		    srclen = 0;
+//		    break;
+//	    }
+//	}
+//    }
+//    *des = '\0';
+//    return deslen_old - deslen;
+//}
+
+int ucs_converting_read(int fd, void *buf, size_t count)
+{
+    int len;
+    if ((len = read(fd, buf, count)) < 0)
+	str_iconv(ucs2big, buf, count);
+    return len;
+}
+
+int ucs_converting_write(int fd, void *buf, size_t count)
+{
+    str_iconv(big2ucs, buf, count);
+    return write(fd, buf, count);
+}
+
+/* we don't need it since one cannot use it after stop mbbsd
+void ucs_finish_converting(void)
+{
+    iconv_close(big2ucs);
+    iconv_close(ucs2big);
+}
+*/
 #endif