Commit | Line | Data |
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2117e02e MW |
1 | #include <sys/types.h> |
2 | #include <sys/socket.h> | |
3 | #include <netinet/in.h> | |
4 | #include <fcntl.h> | |
5 | #include "byte.h" | |
6 | #include "substdio.h" | |
7 | #include "ip.h" | |
8 | #include "fmt.h" | |
9 | #include "timeoutconn.h" | |
10 | #include "timeoutread.h" | |
11 | #include "timeoutwrite.h" | |
12 | #include "remoteinfo.h" | |
13 | ||
14 | static char line[999]; | |
212b6f5d MW |
15 | static int t; |
16 | ||
17 | static int mywrite(fd,buf,len) int fd; char *buf; int len; | |
18 | { | |
19 | return timeoutwrite(t,fd,buf,len); | |
20 | } | |
21 | static int myread(fd,buf,len) int fd; char *buf; int len; | |
22 | { | |
23 | return timeoutread(t,fd,buf,len); | |
24 | } | |
2117e02e MW |
25 | |
26 | char *remoteinfo_get(ipr,rp,ipl,lp,timeout) | |
27 | struct ip_address *ipr; | |
28 | unsigned long rp; | |
29 | struct ip_address *ipl; | |
30 | unsigned long lp; | |
31 | int timeout; | |
32 | { | |
33 | char *x; | |
34 | int s; | |
35 | struct sockaddr_in sin; | |
36 | substdio ss; | |
37 | char buf[32]; | |
38 | unsigned int len; | |
39 | int numcolons; | |
40 | char ch; | |
212b6f5d MW |
41 | |
42 | t = timeout; | |
2117e02e MW |
43 | |
44 | s = socket(AF_INET,SOCK_STREAM,0); | |
45 | if (s == -1) return 0; | |
46 | ||
47 | byte_zero(&sin,sizeof(sin)); | |
48 | sin.sin_family = AF_INET; | |
49 | byte_copy(&sin.sin_addr,4,ipl); | |
50 | sin.sin_port = 0; | |
51 | if (bind(s,(struct sockaddr *) &sin,sizeof(sin)) == -1) { close(s); return 0; } | |
52 | if (timeoutconn(s,ipr,113,timeout) == -1) { close(s); return 0; } | |
53 | fcntl(s,F_SETFL,fcntl(s,F_GETFL,0) & ~O_NDELAY); | |
54 | ||
55 | len = 0; | |
56 | len += fmt_ulong(line + len,rp); | |
57 | len += fmt_str(line + len," , "); | |
58 | len += fmt_ulong(line + len,lp); | |
59 | len += fmt_str(line + len,"\r\n"); | |
60 | ||
212b6f5d | 61 | substdio_fdbuf(&ss,mywrite,s,buf,sizeof buf); |
2117e02e MW |
62 | if (substdio_putflush(&ss,line,len) == -1) { close(s); return 0; } |
63 | ||
212b6f5d | 64 | substdio_fdbuf(&ss,myread,s,buf,sizeof buf); |
2117e02e MW |
65 | x = line; |
66 | numcolons = 0; | |
67 | for (;;) { | |
68 | if (substdio_get(&ss,&ch,1) != 1) { close(s); return 0; } | |
69 | if ((ch == ' ') || (ch == '\t') || (ch == '\r')) continue; | |
70 | if (ch == '\n') break; | |
71 | if (numcolons < 3) { if (ch == ':') ++numcolons; } | |
72 | else { *x++ = ch; if (x == line + sizeof(line) - 1) break; } | |
73 | } | |
74 | *x = 0; | |
75 | close(s); | |
76 | return line; | |
77 | } |