|
24
|
1 #include <stdio.h> |
|
|
2 #include <stdlib.h> |
|
|
3 #include <string.h> |
|
|
4 #include <sys/socket.h> |
|
|
5 #include <unistd.h> |
|
|
6 #include <signal.h> |
|
|
7 |
|
28
|
8 #include "utils.h" |
|
|
9 #include "socket.h" |
|
|
10 #include "screen.h" |
|
24
|
11 |
|
|
12 /* Desc: create socket connection |
|
|
13 * |
|
|
14 * In : servername, port |
|
|
15 * Out : socket (or -1 on error) |
|
|
16 * |
|
|
17 * Note: - |
|
|
18 */ |
|
|
19 int sk_conn(struct sockaddr *name) |
|
|
20 { |
|
|
21 int sock; |
|
|
22 |
|
|
23 if ((sock = socket(PF_INET, SOCK_STREAM, 0)) < 0) { |
|
|
24 perror("socket (socket.c:23)"); |
|
|
25 return -1; |
|
|
26 } |
|
|
27 |
|
|
28 if (connect(sock, (struct sockaddr *) name, sizeof(struct sockaddr)) < 0) { |
|
|
29 perror("connect (socket.c:29)"); |
|
|
30 return -1; |
|
|
31 } |
|
|
32 |
|
|
33 return sock; |
|
|
34 } |
|
|
35 |
|
|
36 |
|
|
37 /* Desc: send data through socket |
|
|
38 * |
|
|
39 * In : socket, buffer to send |
|
|
40 * Out : 0 = fail, 1 = pass |
|
|
41 * |
|
|
42 * Note: - |
|
|
43 */ |
|
|
44 int sk_send(int sock, char *buffer) |
|
|
45 { |
|
|
46 //ut_WriteLog("Sending:%s\n", buffer); |
|
|
47 if ((send(sock, buffer, strlen(buffer), 0)) == -1) |
|
|
48 return 0; |
|
|
49 else |
|
|
50 return 1; |
|
|
51 } |
|
|
52 |
|
|
53 /* Desc: receive data through socket |
|
|
54 * |
|
|
55 * In : socket |
|
|
56 * Out : received buffer |
|
|
57 * |
|
|
58 * Note: it is up to the caller to free the returned string |
|
|
59 */ |
|
|
60 char *sk_recv(int sock) |
|
|
61 { |
|
|
62 int i = 1; |
|
|
63 int tambuffer = 128; |
|
|
64 char mtag[16]; // For tag name |
|
|
65 |
|
26
|
66 char *buffer = calloc(1, tambuffer); |
|
|
67 char *retval = calloc(1, tambuffer + 1); |
|
24
|
68 |
|
|
69 while (1) { |
|
|
70 char *p1; |
|
|
71 int n = recv(sock, buffer, tambuffer, 0); |
|
|
72 if (n == -1) { |
|
|
73 // Error |
|
|
74 free(buffer); |
|
|
75 retval[0] = 0; |
|
|
76 return retval; |
|
|
77 } |
|
|
78 |
|
|
79 if (i == 1) { |
|
|
80 char *p2; |
|
26
|
81 strncpy(retval, buffer, tambuffer); |
|
24
|
82 p1 = retval+1; |
|
|
83 p2 = mtag; |
|
|
84 while (('a' <= *p1) && (*p1 <= 'z') && (p2-mtag < 14)) |
|
|
85 *p2++ = *p1++; |
|
|
86 *p2++ = '>'; *p2++ = 0; |
|
|
87 //fprintf(stderr, "TAG=\"%s\"\n", mtag); |
|
|
88 } else { |
|
26
|
89 char *old_retval = retval; |
|
24
|
90 scr_LogPrint("Realloc %d [%d]", i-1, n); |
|
|
91 if (!n) |
|
|
92 break; |
|
|
93 retval = realloc(retval, (tambuffer * i) + 1); |
|
26
|
94 if (!retval) { |
|
|
95 scr_LogPrint("Memory allocation failure!!"); |
|
|
96 ut_WriteLog("Memory allocation failure in sk_recv()\n", retval); |
|
|
97 free(buffer); |
|
|
98 return old_retval; |
|
|
99 } |
|
|
100 strncat(retval, buffer, tambuffer); |
|
24
|
101 } |
|
|
102 i++; |
|
|
103 p1 = retval + strlen(retval) - strlen(mtag); |
|
|
104 //fprintf(stderr, "buffer:[%s]\n", buffer); |
|
|
105 //fprintf(stderr, "End RET=[%s]\n", p1); |
|
|
106 if (!strcmp(p1, mtag)) |
|
|
107 break; |
|
|
108 for (p1 = retval; *p1 && (*p1 != '>'); p1++); |
|
|
109 if ((*p1 == '>') && (*(p1-1) == '/')) |
|
|
110 break; |
|
|
111 memset(buffer, 0, tambuffer); |
|
|
112 } |
|
|
113 free(buffer); |
|
|
114 ut_WriteLog("Received:%s\n", retval); |
|
|
115 return retval; |
|
|
116 } |
