iconv not reporting errors?
Tim Kientzle
kientzle at freebsd.org
Mon Sep 12 00:53:55 UTC 2011
I'm trying to use the iconv that's in FreeBSD-CURRENT and it's not reporting errors the way I expect. To demonstrate, here's a test program that tries to convert UTF-8 to KOI8-R. This should report an error, since the UTF-8 string here "ĐÒÉ×ÅÔ" contains characters not available in KOI8-R.
On FreeBSD-CURRENT (updated yesterday), the iconv() call returns 0, consumes the entire input, and generates 9 characters "D`O'ExA^O". I believe that the call should return 6 in this case, since each of the six input characters were converted to "non-identical" characters in the output.
The term "non-identical" is used in the return value description of:
http://pubs.opengroup.org/onlinepubs/007908799/xsh/iconv.html
For comparison, I tried this on MacOS, where the iconv() call returns -1, consumes no input, and generates no output.
#include <iconv.h>
#include <stdio.h>
#include <string.h>
int
main(int argc, char **argv)
{
const char *input = "\303\220\303\222\303\211\303\227\303\205\303\224";
const char *in = input;
size_t insize = strlen(in);
char outbuff[64];
char *out = outbuff;
size_t outsize = sizeof(outbuff);
iconv_t cd = iconv_open("KOI8-R", "UTF-8");
size_t s = iconv(cd, &in, &insize, &out, &outsize);
*out = '\0';
printf("s = %d\n", (int)s);
printf("insize = %d\n", (int)insize);
printf("outsize = %d\n", (int)outsize);
printf("%s", outbuff);
return (0);
}
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