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David McCreedy brought line end conversions when doing FTP ASCII

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transfers. They are done on non-windows systems and translate CRLF to LF.
This commit is contained in:
Daniel Stenberg 2006-04-26 07:40:37 +00:00
parent 8ed6762363
commit 95152aec68
23 changed files with 380 additions and 214 deletions
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113
lib/sendf.c
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@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2005, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2006, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -139,6 +139,89 @@ void curl_slist_free_all(struct curl_slist *list)
} while (next);
}
#ifdef CURL_DO_LINEEND_CONV
/*
* convert_lineends() changes CRLF (\r\n) end-of-line markers to a single LF
* (\n), with special processing for CRLF sequences that are split between two
* blocks of data. Remaining, bare CRs are changed to LFs. The possibly new
* size of the data is returned.
*/
static size_t convert_lineends(struct SessionHandle *data,
char *startPtr, size_t size)
{
char *inPtr, *outPtr;
/* sanity check */
if ((startPtr == NULL) || (size < 1)) {
return(size);
}
if (data->state.prev_block_had_trailing_cr == TRUE) {
/* The previous block of incoming data
had a trailing CR, which was turned into a LF. */
if (*startPtr == '\n') {
/* This block of incoming data starts with the
previous block's LF so get rid of it */
memcpy(startPtr, startPtr+1, size-1);
size--;
/* and it wasn't a bare CR but a CRLF conversion instead */
data->state.crlf_conversions++;
}
data->state.prev_block_had_trailing_cr = FALSE; /* reset the flag */
}
/* find 1st CR, if any */
inPtr = outPtr = memchr(startPtr, '\r', size);
if (inPtr) {
/* at least one CR, now look for CRLF */
while (inPtr < (startPtr+size-1)) {
/* note that it's size-1, so we'll never look past the last byte */
if (memcmp(inPtr, "\r\n", 2) == 0) {
/* CRLF found, bump past the CR and copy the NL */
inPtr++;
*outPtr = *inPtr;
/* keep track of how many CRLFs we converted */
data->state.crlf_conversions++;
}
else {
if (*inPtr == '\r') {
/* lone CR, move LF instead */
*outPtr = '\n';
}
else {
/* not a CRLF nor a CR, just copy whatever it is */
*outPtr = *inPtr;
}
}
outPtr++;
inPtr++;
} /* end of while loop */
if (inPtr < startPtr+size) {
/* handle last byte */
if (*inPtr == '\r') {
/* deal with a CR at the end of the buffer */
*outPtr = '\n'; /* copy a NL instead */
/* note that a CRLF might be split across two blocks */
data->state.prev_block_had_trailing_cr = TRUE;
}
else {
/* copy last byte */
*outPtr = *inPtr;
}
outPtr++;
inPtr++;
}
if (outPtr < startPtr+size) {
/* tidy up by null terminating the now shorter data */
*outPtr = '\0';
}
return(outPtr - startPtr);
}
return(size);
}
#endif /* CURL_DO_LINEEND_CONV */
/* Curl_infof() is for info message along the way */
void Curl_infof(struct SessionHandle *data, const char *fmt, ...)
@ -294,36 +377,36 @@ CURLcode Curl_client_write(struct SessionHandle *data,
if(0 == len)
len = strlen(ptr);
#ifdef CURL_DOES_CONVERSIONS
if(type & CLIENTWRITE_BODY) {
if(data->ftp_in_ascii_mode) {
#ifdef CURL_DOES_CONVERSIONS
/* convert from the network encoding */
size_t rc;
rc = Curl_convert_from_network(data, ptr, len);
/* Curl_convert_from_network calls failf if unsuccessful */
if(rc != CURLE_OK) {
return(rc);
}
if(rc != CURLE_OK)
return rc;
#endif /* CURL_DOES_CONVERSIONS */
#ifdef CURL_DO_LINEEND_CONV
/* convert end-of-line markers */
len = convert_lineends(data, ptr, len);
#endif /* CURL_DO_LINEEND_CONV */
}
/* If the previous block of data ended with CR and this block of data is
just a NL, then the length might be zero */
if (len) {
wrote = data->set.fwrite(ptr, 1, len, data->set.out);
} else {
}
else {
wrote = len;
}
if(wrote != len) {
failf (data, "Failed writing body");
return CURLE_WRITE_ERROR;
}
}
#else
if(type & CLIENTWRITE_BODY) {
wrote = data->set.fwrite(ptr, 1, len, data->set.out);
if(wrote != len) {
failf (data, "Failed writing body");
return CURLE_WRITE_ERROR;
}
}
#endif /* CURL_DOES_CONVERSIONS */
if((type & CLIENTWRITE_HEADER) &&
(data->set.fwrite_header || data->set.writeheader) ) {