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https://github.com/moparisthebest/curl
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imap: Moved utility functions to end of imap.c (Part 1/3)
Moved imap_atom() and imap_sendf() to the end of the file allowing all utility functions to be grouped together.
This commit is contained in:
Steve Holme
parent
4bbad1dac7
commit
01e55ebb26
228
lib/imap.c
228
lib/imap.c
@ -99,6 +99,8 @@ static int imap_getsock(struct connectdata *conn, curl_socket_t *socks,
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int numsocks);
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static CURLcode imap_doing(struct connectdata *conn, bool *dophase_done);
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static CURLcode imap_setup_connection(struct connectdata *conn);
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static char *imap_atom(const char *str);
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static CURLcode imap_sendf(struct connectdata *conn, const char *fmt, ...);
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/*
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* IMAP protocol handler.
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@ -213,119 +215,6 @@ static void imap_to_imaps(struct connectdata *conn)
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#define imap_to_imaps(x) Curl_nop_stmt
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#endif
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/***********************************************************************
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*
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* imap_sendf()
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*
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* Sends the formated string as an IMAP command to the server.
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*
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* Designed to never block.
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*/
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static CURLcode imap_sendf(struct connectdata *conn, const char *fmt, ...)
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{
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CURLcode result = CURLE_OK;
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struct imap_conn *imapc = &conn->proto.imapc;
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char *taggedfmt;
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va_list ap;
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va_start(ap, fmt);
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/* Calculate the next command ID wrapping at 3 digits */
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imapc->cmdid = (imapc->cmdid + 1) % 1000;
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/* Calculate the tag based on the connection ID and command ID */
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snprintf(imapc->resptag, sizeof(imapc->resptag), "%c%03d",
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'A' + (conn->connection_id % 26), imapc->cmdid);
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/* Prefix the format with the tag */
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taggedfmt = aprintf("%s %s", imapc->resptag, fmt);
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if(!taggedfmt)
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return CURLE_OUT_OF_MEMORY;
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/* Send the data with the tag */
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result = Curl_pp_vsendf(&imapc->pp, taggedfmt, ap);
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Curl_safefree(taggedfmt);
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va_end(ap);
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return result;
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}
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/***********************************************************************
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*
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* imap_atom()
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*
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* Checks the input string for characters that need escaping and returns an
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* atom ready for sending to the server.
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*
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* The returned string needs to be freed.
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*
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*/
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static char *imap_atom(const char *str)
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{
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const char *p1;
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char *p2;
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size_t backsp_count = 0;
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size_t quote_count = 0;
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bool space_exists = FALSE;
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size_t newlen = 0;
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char *newstr = NULL;
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if(!str)
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return NULL;
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/* Count any unescapped characters */
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p1 = str;
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while(*p1) {
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if(*p1 == '\\')
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backsp_count++;
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else if(*p1 == '"')
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quote_count++;
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else if(*p1 == ' ')
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space_exists = TRUE;
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p1++;
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}
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/* Does the input contain any unescapped characters? */
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if(!backsp_count && !quote_count && !space_exists)
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return strdup(str);
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/* Calculate the new string length */
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newlen = strlen(str) + backsp_count + quote_count + (space_exists ? 2 : 0);
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/* Allocate the new string */
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newstr = (char *) malloc((newlen + 1) * sizeof(char));
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if(!newstr)
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return NULL;
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/* Surround the string in quotes if necessary */
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p2 = newstr;
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if(space_exists) {
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newstr[0] = '"';
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newstr[newlen - 1] = '"';
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p2++;
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}
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/* Copy the string, escaping backslash and quote characters along the way */
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p1 = str;
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while(*p1) {
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if(*p1 == '\\' || *p1 == '"') {
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*p2 = '\\';
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p2++;
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}
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*p2 = *p1;
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p1++;
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p2++;
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}
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/* Terminate the string */
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newstr[newlen] = '\0';
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return newstr;
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}
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/***********************************************************************
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*
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* imap_matchresp()
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@ -2324,4 +2213,117 @@ static CURLcode imap_setup_connection(struct connectdata *conn)
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return CURLE_OK;
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}
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/***********************************************************************
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*
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* imap_sendf()
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*
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* Sends the formated string as an IMAP command to the server.
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*
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* Designed to never block.
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*/
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static CURLcode imap_sendf(struct connectdata *conn, const char *fmt, ...)
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{
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CURLcode result = CURLE_OK;
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struct imap_conn *imapc = &conn->proto.imapc;
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char *taggedfmt;
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va_list ap;
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va_start(ap, fmt);
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/* Calculate the next command ID wrapping at 3 digits */
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imapc->cmdid = (imapc->cmdid + 1) % 1000;
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/* Calculate the tag based on the connection ID and command ID */
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snprintf(imapc->resptag, sizeof(imapc->resptag), "%c%03d",
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'A' + (conn->connection_id % 26), imapc->cmdid);
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/* Prefix the format with the tag */
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taggedfmt = aprintf("%s %s", imapc->resptag, fmt);
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if(!taggedfmt)
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return CURLE_OUT_OF_MEMORY;
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/* Send the data with the tag */
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result = Curl_pp_vsendf(&imapc->pp, taggedfmt, ap);
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Curl_safefree(taggedfmt);
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va_end(ap);
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return result;
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}
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/***********************************************************************
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*
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* imap_atom()
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*
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* Checks the input string for characters that need escaping and returns an
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* atom ready for sending to the server.
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*
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* The returned string needs to be freed.
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*
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*/
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static char *imap_atom(const char *str)
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{
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const char *p1;
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char *p2;
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size_t backsp_count = 0;
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size_t quote_count = 0;
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bool space_exists = FALSE;
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size_t newlen = 0;
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char *newstr = NULL;
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if(!str)
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return NULL;
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/* Count any unescapped characters */
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p1 = str;
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while(*p1) {
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if(*p1 == '\\')
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backsp_count++;
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else if(*p1 == '"')
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quote_count++;
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else if(*p1 == ' ')
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space_exists = TRUE;
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p1++;
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}
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/* Does the input contain any unescapped characters? */
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if(!backsp_count && !quote_count && !space_exists)
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return strdup(str);
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/* Calculate the new string length */
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newlen = strlen(str) + backsp_count + quote_count + (space_exists ? 2 : 0);
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/* Allocate the new string */
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newstr = (char *) malloc((newlen + 1) * sizeof(char));
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if(!newstr)
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return NULL;
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/* Surround the string in quotes if necessary */
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p2 = newstr;
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if(space_exists) {
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newstr[0] = '"';
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newstr[newlen - 1] = '"';
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p2++;
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}
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/* Copy the string, escaping backslash and quote characters along the way */
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p1 = str;
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while(*p1) {
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if(*p1 == '\\' || *p1 == '"') {
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*p2 = '\\';
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p2++;
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}
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*p2 = *p1;
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p1++;
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p2++;
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}
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/* Terminate the string */
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newstr[newlen] = '\0';
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return newstr;
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}
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#endif /* CURL_DISABLE_IMAP */
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