Differences
This shows you the differences between two versions of the page.
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sdk:telnet-run-a-command-using-telnet [2015/03/02 10:22] fachet created |
sdk:telnet-run-a-command-using-telnet [2015/05/06 12:50] |
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| - | <code c> | ||
| - | /* DESC: This script runs a shell command using telnet. | ||
| - | * Only the first response line is returned. | ||
| - | * Don't forget to enable the telnet server | ||
| - | * For special chars in command string use escape: apostrophe = "\x27" | ||
| - | * Copyright (C) 2014 NetModule AG, Switzerland, rfa | ||
| - | */ | ||
| - | |||
| - | string telnet(ip, port, user, password, cmd) | ||
| - | { | ||
| - | |||
| - | if ((sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) return NULL; | ||
| - | if (connect(sock, ip, port) < 0) return NULL; | ||
| - | try { | ||
| - | if ((buf = recv(sock)) == NULL || strlen(buf) < 3) throw NULL; | ||
| - | buf = explode(buf); | ||
| - | if (buf[0] == "\xff") // is command | ||
| - | { | ||
| - | if (buf[1] == "\xfd" && buf[2] == "\d031") { //negotiate | ||
| - | if (send(sock, "\d255\d251\d031") == -1) throw NULL; | ||
| - | if (send(sock, "\d255\d250\d031\d000\d080\d000\d024\d255\d240") == -1) throw NULL; | ||
| - | } else { | ||
| - | for (i = 0; i < strlen(buf); i++) | ||
| - | if (buf[i] == "\xfd") buf[i] = "\xfc"; | ||
| - | else if (buf[i] == "\xfb") buf[i] = "\xfd"; | ||
| - | if (send(sock, implode(buf)) == -1) throw NULL; | ||
| - | } | ||
| - | } | ||
| - | if ((buf = recv(sock)) == NULL || strlen(buf) < 1) throw NULL; // user ? | ||
| - | if (send(sock, strcat(user, "\r\n")) == -1) throw NULL; | ||
| - | if ((buf = recv(sock)) == NULL || strlen(buf) < 1)throw NULL; // password ? | ||
| - | if (send(sock, strcat(password, "\r\n")) == -1) throw NULL; | ||
| - | while((s = select(sock, 1)) > 0 && (buf = recv(sock)) != NULL && strlen(buf) > 0) | ||
| - | if (s == -1) throw NULL; //ignore all garbage | ||
| - | if (send(sock, strcat(cmd, "\r\n")) == -1) throw NULL; //send command | ||
| - | rbuf =""; | ||
| - | while((s = select(sock, 1)) > 0 && (buf = recv(sock)) != NULL && strlen(buf) > 0){ | ||
| - | if (s == -1) throw NULL; | ||
| - | else rbuf = strcat(rbuf, buf); // collect return | ||
| - | } | ||
| - | rbuf = right(rbuf, strlen(rbuf) - strlen(cmd) - 2); //cut cmd | ||
| - | if (pos = strrchr(rbuf, "\r")) | ||
| - | rbuf = left(rbuf, pos); | ||
| - | throw rbuf; | ||
| - | } catch (ret) { | ||
| - | close (sock); | ||
| - | return ret; | ||
| - | } | ||
| - | } | ||
| - | |||
| - | |||
| - | printf("date = <%s>\n", telnet("192.168.1.1", 23, "root", "password", "date")); | ||
| - | // show date | ||
| - | |||
| - | printf("uptime = <%s>\n", telnet("192.168.1.1", 23, "root", "password", "uptime | awk \x27{print $8}\x27")); | ||
| - | //CPU load. Values 0.00-1.00 0=none, max=1.00(100%) | ||
| - | |||
| - | printf("free mem = <%s>\n", telnet("192.168.1.1", 23, "root", "password", "free | grep Total | awk \x27{print $3/$2}\x27")); | ||
| - | //show free memory Values 0-1 0=none, max=1(100%) | ||
| - | |||
| - | printf("ps = <begin>%s<end>\n", telnet("192.168.1.1", 23, "root", "password", "ps")); | ||
| - | // show processes | ||
| - | |||
| - | |||
| - | </code> | ||