diff options
Diffstat (limited to 'source3/lib')
| -rw-r--r-- | source3/lib/iconv.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/source3/lib/iconv.c b/source3/lib/iconv.c index e54a74864e..3498f976b3 100644 --- a/source3/lib/iconv.c +++ b/source3/lib/iconv.c @@ -25,6 +25,8 @@ static size_t ascii_pull(void *,char **, size_t *, char **, size_t *); static size_t ascii_push(void *,char **, size_t *, char **, size_t *); static size_t utf8_pull(void *,char **, size_t *, char **, size_t *); static size_t utf8_push(void *,char **, size_t *, char **, size_t *); +static size_t weird_pull(void *,char **, size_t *, char **, size_t *); +static size_t weird_push(void *,char **, size_t *, char **, size_t *); static size_t ucs2hex_pull(void *,char **, size_t *, char **, size_t *); static size_t ucs2hex_push(void *,char **, size_t *, char **, size_t *); static size_t iconv_copy(void *,char **, size_t *, char **, size_t *); @@ -33,6 +35,7 @@ struct charset_functions builtin_functions[] = { {"UCS-2LE", iconv_copy, iconv_copy}, {"UTF8", utf8_pull, utf8_push}, {"ASCII", ascii_pull, ascii_push}, + {"WEIRD", weird_pull, weird_push}, {"UCS2-HEX", ucs2hex_pull, ucs2hex_push}, {NULL, NULL, NULL} }; @@ -381,6 +384,111 @@ static size_t ucs2hex_push(void *cd, char **inbuf, size_t *inbytesleft, } +/* the "weird" character set is very useful for testing multi-byte + support and finding bugs. Don't use on a production system! +*/ +static struct { + char from; + char *to; + int len; +} weird_table[] = { + {'q', "^q^", 3}, + {'Q', "^Q^", 3}, + {0, NULL} +}; + +static size_t weird_pull(void *cd, char **inbuf, size_t *inbytesleft, + char **outbuf, size_t *outbytesleft) +{ + while (*inbytesleft >= 1 && *outbytesleft >= 2) { + int i; + int done = 0; + for (i=0;weird_table[i].from;i++) { + if (strncmp((*inbuf), + weird_table[i].to, + weird_table[i].len) == 0) { + if (*inbytesleft < weird_table[i].len) { + DEBUG(0,("ERROR: truncated weird string\n")); + /* smb_panic("weird_pull"); */ + + } else { + (*outbuf)[0] = weird_table[i].from; + (*outbuf)[1] = 0; + (*inbytesleft) -= weird_table[i].len; + (*outbytesleft) -= 2; + (*inbuf) += weird_table[i].len; + (*outbuf) += 2; + done = 1; + break; + } + } + } + if (done) continue; + (*outbuf)[0] = (*inbuf)[0]; + (*outbuf)[1] = 0; + (*inbytesleft) -= 1; + (*outbytesleft) -= 2; + (*inbuf) += 1; + (*outbuf) += 2; + } + + if (*inbytesleft > 0) { + errno = E2BIG; + return -1; + } + + return 0; +} + +static size_t weird_push(void *cd, char **inbuf, size_t *inbytesleft, + char **outbuf, size_t *outbytesleft) +{ + int ir_count=0; + + while (*inbytesleft >= 2 && *outbytesleft >= 1) { + int i; + int done=0; + for (i=0;weird_table[i].from;i++) { + if ((*inbuf)[0] == weird_table[i].from && + (*inbuf)[1] == 0) { + if (*outbytesleft < weird_table[i].len) { + DEBUG(0,("No room for weird character\n")); + /* smb_panic("weird_push"); */ + } else { + memcpy(*outbuf, weird_table[i].to, + weird_table[i].len); + (*inbytesleft) -= 2; + (*outbytesleft) -= weird_table[i].len; + (*inbuf) += 2; + (*outbuf) += weird_table[i].len; + done = 1; + break; + } + } + } + if (done) continue; + + (*outbuf)[0] = (*inbuf)[0]; + if ((*inbuf)[1]) ir_count++; + (*inbytesleft) -= 2; + (*outbytesleft) -= 1; + (*inbuf) += 2; + (*outbuf) += 1; + } + + if (*inbytesleft == 1) { + errno = EINVAL; + return -1; + } + + if (*inbytesleft > 1) { + errno = E2BIG; + return -1; + } + + return ir_count; +} + static size_t iconv_copy(void *cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft) { |