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下面是一個(gè)linux下c寫(xiě)的發(fā)送郵件的程序。
我想在SendMail函數(shù)中加一些判斷。就是與smtp服務(wù)器數(shù)據(jù)交換的每一步加一個(gè)驗(yàn)證。比如認(rèn)證失敗了。然后就停止發(fā)送郵件。返回一個(gè)錯(cuò)誤的代號(hào)�，F(xiàn)在是失敗了函數(shù)也一直執(zhí)行。返回結(jié)果都是0。不知道是否成功失敗。只有看調(diào)試信息。我是一個(gè)新手。請(qǐng)高手幫忙。先謝了。
- #include "smtp.h"
- #ifdef WIN32
- #include <windows.h>
- #include <winsock.h>
- #include <stdio.h>
- #else
- #include <stdio.h>
- #include <string.h>
- #include <stdarg.h>
- #include <unistd.h>
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <arpa/inet.h>
- #include <netinet/in.h>
- #include <netdb.h>
- #include <stdio.h>
- #endif
- int sock_connect(const char *pHostName, unsigned short nPort)
- {
- int nSock;
- struct hostent *host;
- struct sockaddr_in client_addr;
- if ((host = gethostbyname(pHostName)) == NULL)
- {
- #ifdef _DEBUG
- printf("sock_connect gethostbyname() error!\r\n");
- #endif
- return 0;
- }
- if ((nSock = (int) socket(AF_INET, SOCK_STREAM, 0)) == -1)
- {
- #ifdef _DEBUG
- printf("sock_connect socket() error!\r\n");
- #endif
- return 0;
- }
- client_addr.sin_family = AF_INET;
- client_addr.sin_port = htons(nPort);
- client_addr.sin_addr = * ((struct in_addr *) host->h_addr);
- memset(&(client_addr.sin_zero), 0, 8) ;
- if (connect(nSock, (struct sockaddr *) &client_addr, sizeof(struct sockaddr)) == -1)
- {
- #ifdef _DEBUG
- printf("sock_connect connect() error!\r\n");
- #endif
- return 0;
- }
- return (nSock);
- }
- int sock_close(int nSock)
- {
- #ifdef WIN32
- return closesocket(nSock);
- #else
- return close(nSock);
- #endif
- }
- int sock_send(int nSock, char *pFormat, ...)
- {
- char szBuffer[1024];
- va_list argptr;
- va_start(argptr, pFormat);
- vsnprintf(szBuffer, sizeof(szBuffer), pFormat, argptr);
- va_end(argptr);
- #ifdef _DEBUG
- printf("%s\r\n",szBuffer);
- #endif
- return send(nSock, szBuffer, (int) strlen(szBuffer), 0) ;
- }
- int sock_read(int nSock, const char *pStop)
- {
- int iResult = 0;
- const int nSize = 256;
- char szBuf[256 + 1];
- while ((iResult = recv(nSock, szBuf, nSize, 0)) > 0)
- {
- szBuf[iResult] = '\0';
- #ifdef _DEBUG
- printf("%s\r\n",szBuf);
- #endif
- if ((pStop) && (strstr(szBuf, pStop) != NULL))
- {
- break;
- }
- }
- return iResult;
- }
- int SendMail(const char *pHostName, unsigned short nPort, SMTP_MAIL *pMail)
- {
- int nSock;
- char szBase64UserName[256];
- char szBase64Password[256];
-
- sock_start();
- nSock = sock_connect(pHostName, nPort);
- if (nSock)
- {
- sock_read(nSock, "220");
-
- sock_send(nSock, "HELO host_name\r\n");
- sock_read(nSock, "250");
- sock_send(nSock, "EHLO\r\n");
- sock_read(nSock, "250");
- sock_send(nSock, "AUTH LOGIN\r\n") ;
- sock_read(nSock, "334");
- Base64Enc(szBase64UserName, pMail->stHeader.szUserName) ;
- sock_send(nSock, "%s\r\n", szBase64UserName);
- Base64Enc(szBase64Password, pMail->stHeader.szPassword) ;
- sock_send(nSock, "%s\r\n", szBase64Password);
- sock_read(nSock, "235");
- sock_send(nSock, "MAIL FROM: <%s> \r\n", pMail->stHeader.szMailFrom);
- sock_read(nSock, "250") ;
- sock_send(nSock, "RCPT TO: <%s> \r\n", pMail->stHeader.szMailTo);
- sock_read(nSock, "250") ;
- sock_send(nSock,"DATA\r\n") ;
- sock_read(nSock,"354") ;
- sock_send(nSock, "From:%s\r\nTo: %s \r\n", pMail->stHeader.szMailFrom, pMail->stHeader.szMailTo);
- sock_send(nSock, "Subject: %s \r\n", pMail->szSubject);
- sock_send(nSock, "Content-type: %s;charset=%s\r\n", pMail->szContentType, pMail->szCharSet);
-
- sock_send(nSock, "\r\n%s\r\n", pMail->szMailBody);
- sock_send(nSock,"\r\n.\r\n") ; /*end data */
- sock_read(nSock,"250") ;
- sock_send(nSock, "QUIT\r\n") ;
- sock_read(nSock, "221");
- sock_close(nSock);
- }
- sock_end();
- return 0;
- }
[ 本帖最后由 m_lm 于 2007-3-23 13:06 編輯 ] |
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