[Bug localedata/23502] New: gconv（UTF-8 to GB18030）

[Bug localedata/23502] New: gconv（UTF-8 to GB18030）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

            Bug ID: 23502
           Summary: gconv（UTF-8 to GB18030）
           Product: glibc
           Version: 2.17
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: localedata
          Assignee: unassigned at sourceware dot org
          Reporter: 286000435 at qq dot com
                CC: libc-locales at sourceware dot org
  Target Milestone: ---

A bug of gconv（UTF-8 to GB18030）. 
The version of glibc is greater than 2.17（>=2.17）.
Following code can't get the right result.

#include <iconv.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void print_buf(char* buf, size_t len)
{
        size_t i;
        for (i = 0; i < len; ++i) {
                printf("%02X ", (unsigned char)buf[i]);
        }
        printf("\n");
}

int main(int argc, char** argv)
{
        char s[] = "早見純";
        iconv_t cd = iconv_open("GB18030", "UTF-8");
        if (cd <= 0 ) {
                printf("iconv_open fail\n");
                return 0;
        }
        size_t inbytesleft = sizeof(s) - 1;
        char dst[6 * sizeof(s)] = { 0 };
        size_t outbytesleft = sizeof(dst) - 1;
        char* inbuf = s;
        char* outbuf = dst;

        if (iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft) ==
(size_t)-1) {
                printf("iconv fail: %d\n", errno);
        }
        iconv_close(cd);
        size_t n = strlen(dst);
        printf("inbytesleft: %u, outbytesleft: %u, dst len: %u\n", inbytesleft,
outbytesleft, n);
        print_buf(dst, n);
        return 0;
}


get error output：
iconv fail: 84
inbytesleft: 4, outbytesleft: 72, dst len: 6
D4 E7 D2 8A BC 83


But I can get the right result with gblic 2.12：
inbytesleft: 0, outbytesleft: 69, dst len: 8
D4 E7 D2 8A BC 83 FE 52

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[Bug localedata/23502] gconv（UTF-8 to GB18030）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

lance <286000435 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |critical

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

lance <286000435 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|gconv（UTF-8 to GB18030）     |gconv（GB18030 to UTF-8）

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

lance <286000435 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|gconv（UTF-8 to GB18030）     |gconv（GB18030 to UTF-8）

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[Bug localedata/23502] gconv（UTF-8 to GB18030）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

lance <286000435 at qq dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|gconv（GB18030 to UTF-8）     |gconv（UTF-8 to GB18030）

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

--- Comment #1 from lance <286000435 at qq dot com> ---
> A bug of gconv（GB18030 to UTF-8）.

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[schwab@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

Andreas Schwab <schwab@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[schwab@linux-m68k.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

Andreas Schwab <schwab@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2018-09-05
     Ever confirmed|0                           |1

--- Comment #2 from Andreas Schwab <schwab@linux-m68k.org> ---
What is the exact contents of the array s?

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[Bug localedata/23502] gconv（GB18030 to UTF-8）

[286000435 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23502

--- Comment #3 from lance <286000435 at qq dot com> ---
(In reply to Andreas Schwab from comment #2)
> What is the exact contents of the array s?

This is new code:

#include <iconv.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void print_buf(char* buf, size_t len)
{
        size_t i;
        for (i = 0; i < len; ++i) {
                printf("%02X ", (unsigned char)buf[i]);
        }
        printf("\n");
}

int main(int argc, char** argv)
{
        char s[] = "早見純";
        print_buf(s, sizeof(s));
        iconv_t cd = iconv_open("GB18030", "UTF-8");
        if (cd <= 0 ) {
                printf("iconv_open fail\n");
                return 0;
        }
        size_t inbytesleft = sizeof(s) - 1;
        char dst[6 * sizeof(s)] = { 0 };
        size_t outbytesleft = sizeof(dst) - 1;
        char* inbuf = s;
        char* outbuf = dst;

        if (iconv(cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft) ==
(size_t)-1) {
                printf("iconv fail: %d\n", errno);
        }
        iconv_close(cd);
        size_t n = strlen(dst);
        printf("inbytesleft: %u, outbytesleft: %u, dst len: %u\n", inbytesleft,
outbytesleft, n);
        print_buf(dst, n);
        return 0;
}

array s contents is :
E6 97 A9 E8 A6 8B E7 B4 94 EE A0 97 00

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