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imap: FETCH response handler cleanup before further changes 

Removed superfluous NULL assignment after Curl_safefree() and rewrote
some comments and logging messages.
This commit is contained in:
Jiri Hruska 2013-02-28 21:32:10 +01:00 committed by Steve Holme
parent d9235e74ed
commit 10549ee08f
1 changed files with 16 additions and 22 deletions
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38
lib/imap.c
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@ -706,14 +706,6 @@ static CURLcode imap_fetch(struct connectdata *conn)
if(result)
return result;
/*
* When issued, the server will respond with a single line similar to
* '* 1 FETCH (BODY[TEXT] {2021}'
*
* Identifying the fetch and how many bytes of contents we can expect. We
* must extract that number before continuing to "download as usual".
*/
state(conn, IMAP_FETCH);
return result;
@ -1255,7 +1247,7 @@ static CURLcode imap_state_select_resp(struct connectdata *conn, int imapcode,
return result;
}
/* For the (first line of) FETCH BODY[TEXT] response */
/* For the (first line of the) FETCH response */
static CURLcode imap_state_fetch_resp(struct connectdata *conn, int imapcode,
imapstate instate)
{
@ -1273,7 +1265,8 @@ static CURLcode imap_state_fetch_resp(struct connectdata *conn, int imapcode,
return CURLE_REMOTE_FILE_NOT_FOUND; /* TODO: Fix error code */
}
/* Something like this comes "* 1 FETCH (BODY[TEXT] {2021}\r" */
/* Something like this is received "* 1 FETCH (BODY[TEXT] {2021}\r" so parse
the continuation data contained within the curly brackets */
while(*ptr && (*ptr != '{'))
ptr++;
@ -1291,7 +1284,7 @@ static CURLcode imap_state_fetch_resp(struct connectdata *conn, int imapcode,
size_t chunk = pp->cache_size;
if(chunk > (size_t)size)
/* the conversion from curl_off_t to size_t is always fine here */
/* The conversion from curl_off_t to size_t is always fine here */
chunk = (size_t)size;
result = Curl_client_write(conn, CLIENTWRITE_BODY, pp->cache, chunk);
@ -1300,25 +1293,26 @@ static CURLcode imap_state_fetch_resp(struct connectdata *conn, int imapcode,
size -= chunk;
/* we've now used parts of or the entire cache */
infof(data, "Written %" FORMAT_OFF_TU " bytes, %" FORMAT_OFF_TU
" bytes are left for transfer\n", (curl_off_t)chunk, size);
/* Have we used the entire cache or just part of it?*/
if(pp->cache_size > chunk) {
/* part of, move the trailing data to the start and reduce the size */
memmove(pp->cache, pp->cache + chunk,
pp->cache_size - chunk);
/* Only part of it so shrink the cache to fit the trailing data */
memmove(pp->cache, pp->cache + chunk, pp->cache_size - chunk);
pp->cache_size -= chunk;
}
else {
/* cache is drained */
/* Free the cache */
Curl_safefree(pp->cache);
pp->cache = NULL;
/* Reset the cache size */
pp->cache_size = 0;
}
}
infof(data, "Size left: %" FORMAT_OFF_T "\n", size);
if(!size)
/* the entire data is already transferred! */
/* The entire data is already transferred! */
Curl_setup_transfer(conn, -1, -1, FALSE, NULL, -1, NULL);
else
/* IMAP download */
@ -1330,7 +1324,7 @@ static CURLcode imap_state_fetch_resp(struct connectdata *conn, int imapcode,
/* We don't know how to parse this line */
result = CURLE_FTP_WEIRD_SERVER_REPLY; /* TODO: fix this code */
/* End of do phase */
/* End of DO phase */
state(conn, IMAP_STOP);
return result;
@ -1350,7 +1344,7 @@ static CURLcode imap_state_fetch_final_resp(struct connectdata *conn,
else
result = CURLE_OK;
/* End of do phase */
/* End of DONE phase */
state(conn, IMAP_STOP);
return result;