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1. #ifdef WIN32
2. #include <windows.h>
3. #include <stdio.h>
4. #else
6. #include <stdio.h>
7. #include <sys/types.h>
8. #include <sys/socket.h>
9. #include <netinet/in.h>
10. #include <errno.h>
11. #include <unistd.h>
12. #include <sys/time.h>
13. #endif
14. struct data6
15. {
16. unsigned int d4:6;
17. unsigned int d3:6;
18. unsigned int d2:6;
19. unsigned int d1:6;
20. };
21. // ЭÒéÖмÓÃܲ¿·ÖʹÓõÄÊÇbase64·½·¨
22. char con628(char c6);
23. void base64(char *dbuf,char *buf128,int len);
24. void sendemail(char *email,char *body);
25. int open_socket(struct sockaddr *addr);
27. int main()
28. {
29. char email[] = "987654321@qq.com";
30. char body[] = "From: \"lucy\"<123456789@qq.com>\r\n"
31. "To: \"dasiy\"<987654321@qq.com>\r\n"
32. "Subject: Hello\r\n\r\n"
33. "Hello World, Hello Email!";
34. sendemail(email, body);
35. return 0;
36. }
38. char con628(char c6)
39. {
40. char rtn = '\0';
41. if (c6 < 26) rtn = c6 + 65;
42. else if (c6 < 52) rtn = c6 + 71;
43. else if (c6 < 62) rtn = c6 - 4;
44. else if (c6 == 62) rtn = 43;
45. else rtn = 47;
46. return rtn;
47. }
49. // base64µÄʵÏÖ
50. void base64(char *dbuf, char *buf128, int len)
51. {
52. struct data6 *ddd = NULL;
53. int i = 0;
54. char buf[256] = {0};
55. char *tmp = NULL;
56. char cc = '\0';
57. memset(buf, 0, 256);
58. strcpy(buf, buf128);
59. for(i = 1; i <= len/3; i++)
60. {
61. tmp = buf+(i-1)*3;
62. cc = tmp[2];
63. tmp[2] = tmp[0];
64. tmp[0] = cc;
65. ddd = (struct data6 *)tmp;
66. dbuf[(i-1)*4+0] = con628((unsigned int)ddd->d1);
67. dbuf[(i-1)*4+1] = con628((unsigned int)ddd->d2);
68. dbuf[(i-1)*4+2] = con628((unsigned int)ddd->d3);
69. dbuf[(i-1)*4+3] = con628((unsigned int)ddd->d4);
70. }
71. if(len%3 == 1)
72. {
73. tmp = buf+(i-1)*3;
74. cc = tmp[2];
75. tmp[2] = tmp[0];
76. tmp[0] = cc;
77. ddd = (struct data6 *)tmp;
78. dbuf[(i-1)*4+0] = con628((unsigned int)ddd->d1);
79. dbuf[(i-1)*4+1] = con628((unsigned int)ddd->d2);
80. dbuf[(i-1)*4+2] = '=';
81. dbuf[(i-1)*4+3] = '=';
82. }
83. if(len%3 == 2)
84. {
85. tmp = buf+(i-1)*3;
86. cc = tmp[2];
87. tmp[2] = tmp[0];
88. tmp[0] = cc;
89. ddd = (struct data6 *)tmp;
90. dbuf[(i-1)*4+0] = con628((unsigned int)ddd->d1);
91. dbuf[(i-1)*4+1] = con628((unsigned int)ddd->d2);
92. dbuf[(i-1)*4+2] = con628((unsigned int)ddd->d3);
93. dbuf[(i-1)*4+3] = '=';
94. }
95. return;
96. }
97. // ·¢ËÍÓʼþ
98. void sendemail(char *email, char *body)
99. {
100. int sockfd = 0;
101. struct sockaddr_in their_addr = {0};
102. char buf[1500] = {0};
103. char rbuf[1500] = {0};
104. char login[128] = {0};
105. char pass[128] = {0};
106. #ifdef WIN32
107. WSADATA WSAData;
108. WSAStartup(MAKEWORD(2, 2), &WSAData);
109. #endif
110. memset(&their_addr, 0, sizeof(their_addr));
111. their_addr.sin_family = AF_INET;
112. their_addr.sin_port = htons(25);
113. their_addr.sin_addr.s_addr = inet_addr("112.90.141.71");//qq smtp ·þÎñÆ÷
114. // Á¬½ÓÓʼþ·þÎñÆ÷，Èç¹ûÁ¬½ÓºóûÓÐÏìÓ¦，Ôò2 ÃëºóÖØÐÂÁ¬½Ó
115. sockfd = open_socket((struct sockaddr *)&their_addr);
116. memset(rbuf,0,1500);
117. while(recv(sockfd, rbuf, 1500, 0) == 0)
118. {
119. printf("reconnect...\n");
120. Sleep(2);
121. //close(sockfd);
122. sockfd = open_socket((struct sockaddr *)&their_addr);
124. memset(rbuf,0,1500);
125. }
127. printf("%s\n", rbuf);
129. // EHLO
130. memset(buf, 0, 1500);
131. sprintf(buf, "EHLO abcdefg-PC\r\n");
132. send(sockfd, buf, strlen(buf), 0);
133. memset(rbuf, 0, 1500);
134. recv(sockfd, rbuf, 1500, 0);
135. printf("%s\n", rbuf);
137. // AUTH LOGIN
138. memset(buf, 0, 1500);
139. sprintf(buf, "AUTH LOGIN\r\n");
140. send(sockfd, buf, strlen(buf), 0);
141. printf("%s\n", buf);
142. memset(rbuf, 0, 1500);
143. recv(sockfd, rbuf, 1500, 0);
144. printf("%s\n", rbuf);
146. // USER
147. memset(buf, 0, 1500);
148. sprintf(buf,"12345678");//ÄãµÄqqºÅ
149. memset(login, 0, 128);
150. base64(login, buf, strlen(buf));
151. sprintf(buf, "%s\r\n", login);
152. send(sockfd, buf, strlen(buf), 0);
153. printf("%s\n", buf);
154. memset(rbuf, 0, 1500);
155. recv(sockfd, rbuf, 1500, 0);
156. printf("%s\n", rbuf);
158. // PASSWORD
159. sprintf(buf, "qqpassword");//ÄãµÄqqÃÜÂë
160. memset(pass, 0, 128);
161. base64(pass, buf, strlen(buf));
162. sprintf(buf, "%s\r\n", pass);
163. send(sockfd, buf, strlen(buf), 0);
164. printf("%s\n", buf);
166. memset(rbuf, 0, 1500);
167. recv(sockfd, rbuf, 1500, 0);
168. printf("%s\n", rbuf);
170. // MAIL FROM
171. memset(buf, 0, 1500);
172. sprintf(buf, "MAIL FROM: <123456789@qq.com>\r\n");
173. send(sockfd, buf, strlen(buf), 0);
174. memset(rbuf, 0, 1500);
175. recv(sockfd, rbuf, 1500, 0);
176. printf("%s\n", rbuf);
178. // RCPT TO µÚÒ»¸öÊÕ¼þÈË
179. sprintf(buf, "RCPT TO:<%s>\r\n", email);
180. send(sockfd, buf, strlen(buf), 0);
181. memset(rbuf, 0, 1500);
182. recv(sockfd, rbuf, 1500, 0);
183. printf("%s\n", rbuf);
185. // DATA ×¼±¸¿ªÊ¼·¢ËÍÓʼþÄÚÈÝ
186. sprintf(buf, "DATA\r\n");
187. send(sockfd, buf, strlen(buf), 0);
188. memset(rbuf, 0, 1500);
189. recv(sockfd, rbuf, 1500, 0);
190. printf("%s\n", rbuf);
192. // ·¢ËÍÓʼþÄÚÈÝ，\r\n.\r\nÄÚÈݽáÊø±ê¼Ç
193. sprintf(buf, "%s\r\n.\r\n", body);
194. send(sockfd, buf, strlen(buf), 0);
195. memset(rbuf, 0, 1500);
196. recv(sockfd, rbuf, 1500, 0);
197. printf("%s\n", rbuf);
199. // QUIT
200. sprintf(buf, "QUIT\r\n");
201. send(sockfd, buf, strlen(buf), 0);
202. memset(rbuf, 0, 1500);
203. recv(sockfd, rbuf, 1500, 0);
204. printf("%s\n", rbuf);
206. // VC2005 ÐèҪʹÓÃ
207. closesocket(sockfd);
208. // close(sockfd);
209. #ifdef WIN32
210. WSACleanup();
211. #endif
212. return;
214. }
215. // ´ò¿ªTCP SocketÁ¬½Ó
216. int open_socket(struct sockaddr *addr)
217. {
218. int sockfd = 0;
219. sockfd=socket(PF_INET, SOCK_STREAM, 0);
220. if(sockfd < 0)
221. {
222. fprintf(stderr, "Open sockfd(TCP) error!\n");
223. exit(-1);
224. }
225. if(connect(sockfd, addr, sizeof(struct sockaddr)) < 0)
226. {
227. fprintf(stderr, "Connect sockfd(TCP) error!\n");
228. exit(-1);
229. }
230. return sockfd;
231. }