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- Improve code so errors returned from the server are reported back to the user.
# Testers, testers, testers!
This commit is contained in:
Markus Fischer
parent
d9f4162ab9
commit
7a0866ff90
2 changed files with 80 additions and 33 deletions
107
win32/sendmail.c
107
win32/sendmail.c
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@ -47,6 +47,18 @@ static char *days[] =
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static char *months[] =
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{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
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/* '*error_message' has to be passed around from php_mail() */
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#define SMTP_ERROR_RESPONSE_SPEC "SMTP server response: %s"
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/* Convinient way to handle error messages from the SMTP server.
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response is ecalloc()d in Ack() itself and efree()d here
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because the content is in *error_message now */
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#define SMTP_ERROR_RESPONSE(response) { \
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if (NULL != (*error_message = ecalloc(1, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response)))) { \
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snprintf(*error_message, sizeof(SMTP_ERROR_RESPONSE_SPEC) + strlen(response), SMTP_ERROR_RESPONSE_SPEC, response); \
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} \
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efree(response); \
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}
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#ifndef THREAD_SAFE
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char Buffer[MAIL_BUFFER_SIZE];
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@ -62,7 +74,7 @@ char MailHost[HOST_NAME_LEN];
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char LocalHost[HOST_NAME_LEN];
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#endif
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char seps[] = " ,\t\n";
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char *php_mailer = "PHP 4.0 WIN32";
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char *php_mailer = "PHP 4 WIN32";
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char *get_header(char *h, char *headers);
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@ -88,8 +100,7 @@ static char *ErrorMessages[] =
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{"Bad Message Return Path"},
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{"Bad Mail Host"},
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{"Bad Message File"},
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{"\"sendmail_from\" not set in php.ini"},
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{"\"sendmail_from\" not set in php.ini or custom \"From:\" header missing"},
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{"Mailserver rejected our \"sendmail_from\" setting"} /* 20 */
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};
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@ -108,7 +119,7 @@ static char *ErrorMessages[] =
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//
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// See SendText() for additional args!
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//********************************************************************/
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int TSendMail(char *host, int *error,
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int TSendMail(char *host, int *error, char **error_message,
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char *headers, char *Subject, char *mailTo, char *data)
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{
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int ret;
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@ -118,10 +129,10 @@ int TSendMail(char *host, int *error,
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if (host == NULL) {
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*error = BAD_MAIL_HOST;
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return BAD_MAIL_HOST;
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return FAILURE;
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} else if (strlen(host) >= HOST_NAME_LEN) {
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*error = BAD_MAIL_HOST;
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return BAD_MAIL_HOST;
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return FAILURE;
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} else {
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strcpy(MailHost, host);
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}
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@ -162,16 +173,25 @@ int TSendMail(char *host, int *error,
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/* attempt to connect with mail host */
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*error = MailConnect();
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if (*error != 0) {
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if(RPath)efree(RPath);
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return *error;
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if (RPath) {
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efree(RPath);
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}
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if (NULL == (*error_message = ecalloc(1, HOST_NAME_LEN + 128))) {
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return FAILURE;
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}
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snprintf(*error_message, HOST_NAME_LEN + 128, "Failed to connect to mailserver at \"%s\", verify your \"SMTP\" setting in php.ini", MailHost);
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return FAILURE;
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} else {
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ret = SendText(RPath, Subject, mailTo, data, headers);
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ret = SendText(RPath, Subject, mailTo, data, headers, error_message);
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TSMClose();
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if (RPath) {
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efree(RPath);
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}
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if (ret != SUCCESS) {
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*error = ret;
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return FAILURE;
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}
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if(RPath)efree(RPath);
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return ret;
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return SUCCESS;
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}
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}
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@ -186,7 +206,7 @@ int TSendMail(char *host, int *error,
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void TSMClose()
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{
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Post("QUIT\r\n");
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Ack();
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Ack(NULL);
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/* to guarantee that the cleanup is not made twice and
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compomise the rest of the application if sockets are used
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elesewhere
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@ -207,8 +227,6 @@ void TSMClose()
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//*******************************************************************/
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char *GetSMErrorText(int index)
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{
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if (MIN_ERROR_INDEX <= index && index < MAX_ERROR_INDEX) {
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return (ErrorMessages[index]);
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@ -233,11 +251,12 @@ char *GetSMErrorText(int index)
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// Author/Date: jcar 20/9/96
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// History:
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//*******************************************************************/
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int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers)
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int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers, char **error_message)
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{
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int res, i;
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char *p;
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char *tempMailTo, *token, *pos1, *pos2;
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char *server_response = NULL;
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/* check for NULL parameters */
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if (data == NULL)
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@ -249,8 +268,12 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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/* simple checks for the mailto address */
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/* have ampersand ? */
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/* mfischer, 20020514: I commented this out because it really
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seems bogus. Only a username for example may still be a
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valid address at the destination system.
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if (strchr(mailTo, '@') == NULL)
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return (BAD_MSG_DESTINATION);
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*/
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sprintf(Buffer, "HELO %s\r\n", LocalHost);
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@ -261,14 +284,18 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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if ((res = Post(Buffer)) != SUCCESS)
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return (res);
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}
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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sprintf(Buffer, "MAIL FROM:<%s>\r\n", RPath);
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if ((res = Post(Buffer)) != SUCCESS)
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return (res);
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return W32_SM_SENDMAIL_FROM_MALFORMED;
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}
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tempMailTo = estrdup(mailTo);
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@ -280,8 +307,10 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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sprintf(Buffer, "RCPT TO:<%s>\r\n", token);
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if ((res = Post(Buffer)) != SUCCESS)
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return (res);
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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token = strtok(NULL, ",");
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}
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@ -304,8 +333,10 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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sprintf(Buffer, "RCPT TO:<%s>\r\n", token);
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if ((res = Post(Buffer)) != SUCCESS)
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return (res);
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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token = strtok(NULL, ",");
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}
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efree(tempMailTo);
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@ -313,8 +344,10 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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if ((res = Post("DATA\r\n")) != SUCCESS)
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return (res);
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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/* send message header */
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@ -354,8 +387,10 @@ int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers
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/*send termination dot */
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if ((res = Post("\r\n.\r\n")) != SUCCESS)
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return (res);
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if ((res = Ack()) != SUCCESS)
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if ((res = Ack(&server_response)) != SUCCESS) {
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SMTP_ERROR_RESPONSE(server_response);
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return (res);
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}
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return (SUCCESS);
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}
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@ -471,7 +506,7 @@ int MailConnect()
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return (FAILED_TO_CONNECT);
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/* receive Server welcome message */
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res = Ack();
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res = Ack(NULL);
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return (res);
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}
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@ -515,20 +550,16 @@ int Post(LPCSTR msg)
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// Author/Date: jcar 20/9/96
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// History:
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//********************************************************************/
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int Ack()
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int Ack(char **server_response)
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{
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static char *buf;
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static char buf[MAIL_BUFFER_SIZE];
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int rlen;
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int Index = 0;
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int Received = 0;
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if (!buf)
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if ((buf = (char *) malloc(1024 * 4)) == NULL)
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return (OUT_OF_MEMORY);
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again:
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if ((rlen = recv(sc, buf + Index, ((1024 * 4) - 1) - Received, 0)) < 1)
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if ((rlen = recv(sc, buf + Index, ((MAIL_BUFFER_SIZE) - 1) - Received, 0)) < 1)
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return (FAILED_TO_RECEIVE);
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Received += rlen;
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@ -544,8 +575,24 @@ int Ack()
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goto again; /* Incomplete data. Line must be terminated by CRLF
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And not contain a space followed by a '-' */
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if (buf[0] > '3')
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if (buf[0] > '3') {
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/* If we've a valid pointer, return the SMTP server response so the error messages give away more information */
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if (server_response) {
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int dec = 0;
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/* See if we have something like \r, \n, \r\n or \n\r at the end of the message and chop it off */
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if (Received > 2) {
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if (buf[Received-1] == '\n' || buf[Received-1] == '\r') {
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dec++;
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if (buf[Received-2] == '\r' || buf[Received-2] == '\n') {
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dec++;
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}
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}
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}
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*server_response = estrndup(buf, Received - dec);
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}
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return (SMTP_SERVER_ERROR);
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}
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return (SUCCESS);
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}
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@ -31,16 +31,16 @@
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#define MAX_ERROR_INDEX 21 /* Always last error message + 1 */
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int TSendMail(char *smtpaddr, int *returnerror,
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int TSendMail(char *smtpaddr, int *returnerror, char **error_message,
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char *RPath, char *Subject, char *mailTo, char *data);
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void TSMClose(void);
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int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers);
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int SendText(char *RPath, char *Subject, char *mailTo, char *data, char *headers, char **error_message);
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char *GetSMErrorText(int index);
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int MailConnect();
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int PostHeader(char *, char *, char *, char *, char *);
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int Post(LPCSTR);
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int Ack();
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int Ack(char **server_response);
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unsigned long GetAddr(LPSTR szHost);
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