*
*/
-
-#include "internal.h"
+#include "busybox.h"
#include <termios.h>
#include <unistd.h>
#include <errno.h>
#include <netdb.h>
#if 0
-#define DOTRACE 1
+static const int DOTRACE = 1;
#endif
-#if DOTRACE
+#ifdef DOTRACE
#include <arpa/inet.h> /* for inet_ntoa()... */
#define TRACE(x, y) do { if (x) printf y; } while (0)
#else
#include <sys/time.h>
#endif
-#define DATABUFSIZE 128
-#define IACBUFSIZE 128
+static const int DATABUFSIZE = 128;
+static const int IACBUFSIZE = 128;
-#define CHM_TRY 0
-#define CHM_ON 1
-#define CHM_OFF 2
+static const int CHM_TRY = 0;
+static const int CHM_ON = 1;
+static const int CHM_OFF = 2;
-#define UF_ECHO 0x01
-#define UF_SGA 0x02
+static const int UF_ECHO = 0x01;
+static const int UF_SGA = 0x02;
-#define TS_0 1
-#define TS_IAC 2
-#define TS_OPT 3
-#define TS_SUB1 4
-#define TS_SUB2 5
+enum {
+ TS_0 = 1,
+ TS_IAC = 2,
+ TS_OPT = 3,
+ TS_SUB1 = 4,
+ TS_SUB2 = 5,
+};
#define WriteCS(fd, str) write(fd, str, sizeof str -1)
/* Some globals */
static int one = 1;
-static const char telnet_usage[] =
- "telnet host [port]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nTelnet is used to establish interactive communication with another\n"
- "computer over a network using the TELNET protocol.\n"
-#endif
- ;
-
static void doexit(int ev)
{
{
if (G.charmode == CHM_TRY) {
G.charmode = CHM_ON;
- fprintf(stdout, "\r\nEntering character mode%s'^]'.\r\n", escapecharis);
+ printf("\r\nEntering character mode%s'^]'.\r\n", escapecharis);
rawmode();
}
}
{
if (G.charmode != CHM_OFF) {
G.charmode = CHM_OFF;
- fprintf(stdout, "\r\nEntering line mode%s'^C'.\r\n", escapecharis);
+ printf("\r\nEntering line mode%s'^C'.\r\n", escapecharis);
cookmode();
}
}
cfmakeraw(&G.termios_raw);
- if (argc < 2) usage(telnet_usage);
+ if (argc < 2) show_usage();
port = (argc > 2)? getport(argv[2]): 23;
G.buf = xmalloc(DATABUFSIZE);
if ((unsigned)(port - 1 ) > 65534)
{
- fatalError("%s: bad port number\n", p);
+ error_msg_and_die("%s: bad port number", p);
}
return port;
}
struct hostent * he;
if ((he = gethostbyname(host)) == NULL)
{
- fatalError("%s: Unkonwn host\n", host);
+ error_msg_and_die("%s: Unknown host", host);
}
memcpy(&addr, he->h_addr, sizeof addr);
if (connect(s, (struct sockaddr *)&s_addr, sizeof s_addr) < 0)
{
- fatalError("Unable to connect to remote host: %s\n", strerror(errno));
+ perror_msg_and_die("Unable to connect to remote host");
}
return s;
}