Reverting revision 2098 and 2100. These make kernel panic due to out of swap.

git-svn-id: http://opensvn.csie.org/pttbbs/trunk/pttbbs@2101 63ad8ddf-47c3-0310-b6dd-a9e9d9715204

3 files changed, 27 insertions, 115 deletions

diff --git a/mbbsd/io.c b/mbbsd/io.c
index 3282b041..584faa29 100644
--- a/mbbsd/io.c
+++ b/mbbsd/io.c
@@ -10,7 +10,7 @@
 #define IBUFSIZE  256
 #endif
 
-static char     outbuf[OBUFSIZE];
+static char     outbuf[OBUFSIZE], inbuf[IBUFSIZE];
 static int      obufsize = 0, ibufsize = 0;
 static int      icurrchar = 0;
 
@@ -47,15 +47,12 @@ oflush()
     }
 }
 
-#if 0
 void
 init_buf()
 {
 
     memset(inbuf, 0, IBUFSIZE);
 }
-#endif
-
 void
 output(char *s, int len)
 {
@@ -124,7 +121,6 @@ dogetch()
 {
     int             len;
     static time_t   lastact;
-    static unsigned char inbuf[IBUFSIZE];
     if (ibufsize <= icurrchar) {
 
 	if (flushf)
@@ -181,7 +177,7 @@ dogetch()
  
 	    }
 #ifdef SKIP_TELNET_CONTROL_SIGNAL
-	} while( inbuf[0] == IAC );
+	} while( inbuf[0] == -1 );
 #endif
 	ibufsize = len;
 	icurrchar = 0;
@@ -227,56 +223,7 @@ igetch()
         else                                       //  here is switch for default keys
 	switch (ch) {
         case IAC:
-#ifndef SKIP_TELNET_CONTROL_SIGNAL
-	    {
-		unsigned char cmd[16];
-		ch = dogetch();
-		switch (ch) {
-		    case IAC:
-			return IAC; /* escaped IAC */
-
-		    case DO:
-			cmd[0] = IAC;
-			cmd[1] = WONT; /* this always work according to rfc 854 */
-			cmd[2] = dogetch();
-			if(cmd[1] != TELOPT_TTYPE && cmd[1] != TELOPT_NAWS &&
-				cmd[1] != TELOPT_ECHO && cmd[1] != TELOPT_SGA)
-			    write(1, cmd, 3);
-			break;
-
-		    case DONT:
-			cmd[0] = IAC;
-			cmd[1] = WONT;
-			cmd[2] = dogetch();
-			write(1, cmd, 3);
-			break;
-
-		    case WILL: case WONT:
-			cmd[2] = dogetch();
-			break;
-
-		    case SB:
-			{
-			    int i;
-			    ch = 0; /* use as mode */
-			    for (i = 2; i < 16; ++i) {
-				cmd[i] = dogetch();
-				if (cmd[i] == IAC)
-				    ch ^= 1;
-				else if (ch && cmd[i] == SE)
-				    break;
-				else
-				    mode = 0;
-			    }
-			}
-			if (cmd[2] == TELOPT_NAWS)
-			    telnet_parse_size(cmd);
-
-		} /* switch first char after IAC */
-	    }
-#endif /* ! defined SKIP_TELNET_CONTROL_SIGNAL */
             continue;
-
 #ifdef DEBUG
 	case Ctrl('Q'):{
 	    struct rusage ru;
diff --git a/mbbsd/mbbsd.c b/mbbsd/mbbsd.c
index 8c5ac52d..c202e786 100644
--- a/mbbsd/mbbsd.c
+++ b/mbbsd/mbbsd.c
@@ -1076,41 +1076,29 @@ start_client()
 static void
 telnet_init()
 {
-    const static unsigned char svr[] = {
+    const static char     svr[] = {
 	IAC, DO, TELOPT_TTYPE,
 	IAC, SB, TELOPT_TTYPE, TELQUAL_SEND, IAC, SE,
 	IAC, WILL, TELOPT_ECHO,
-	IAC, WILL, TELOPT_SGA,
-#ifndef SKIP_TELNET_CONTROL_SIGNAL
-	IAC, DO, TELOPT_NAWS,
-#endif
-	0
+	IAC, WILL, TELOPT_SGA
     };
-    const unsigned char *cmd;
+    const char           *cmd;
     int             n, len;
     struct timeval  to;
-    unsigned char   buf[64];
+    char            buf[64];
     fd_set          ReadSet, r;
-    int             recvlen;
     
     FD_ZERO(&ReadSet);
     FD_SET(0, &ReadSet);
-    for (n = 0, cmd = svr; *cmd == IAC; n++) {
-	len = (cmd[1] == SB ? 6 : 3);
+    for (n = 0, cmd = svr; n < 4; n++) {
+	len = (n == 1 ? 6 : 3);
 	write(0, cmd, len);
 	cmd += len;
 	to.tv_sec = 3;
 	to.tv_usec = 0;
 	r = ReadSet;
-	if (select(1, &r, NULL, NULL, &to) > 0){
-	    recvlen = recv(0, buf, sizeof(buf), 0);
-#ifndef SKIP_TELNET_CONTROL_SIGNAL
-	    if (recvlen && len == 3 && *(cmd - 1) == TELOPT_NAWS){
-		if (buf[0] == IAC && buf[1] == WILL && buf[2] == TELOPT_NAWS)
-		    telnet_parse_size(buf + 3);
-	    }
-#endif
-	}
+	if (select(1, &r, NULL, NULL, &to) > 0)
+	    recv(0, buf, sizeof(buf), 0);
     }
 }
 
diff --git a/mbbsd/term.c b/mbbsd/term.c
index 3d9fd793..555840d1 100644
--- a/mbbsd/term.c
+++ b/mbbsd/term.c
@@ -52,16 +52,22 @@ outcf(int ch)
 }
 #endif
 
-static inline void
-term_resize(int row, int col){
+static void
+term_resize(int sig)
+{
+    struct winsize  newsize;
     screenline_t   *new_picture;
 
+    signal(SIGWINCH, SIG_IGN);	/* Don't bother me! */
+    ioctl(0, TIOCGWINSZ, &newsize);
+
     /* make sure reasonable size */
-    row = MAX(24, MIN(100, row));
-    col = MAX(80, MIN(200, col));
+    newsize.ws_row = MAX(24, MIN(100, newsize.ws_row));
+    newsize.ws_col = MAX(80, MIN(200, newsize.ws_col));
 
-    if (big_picture != NULL && row > t_lines) {
-	new_picture = (screenline_t *) calloc(row, sizeof(screenline_t));
+    if (newsize.ws_row > t_lines) {
+	new_picture = (screenline_t *) calloc(newsize.ws_row,
+					      sizeof(screenline_t));
 	if (new_picture == NULL) {
 	    syslog(LOG_ERR, "calloc(): %m");
 	    return;
@@ -70,48 +76,19 @@ term_resize(int row, int col){
 	free(big_picture);
 	big_picture = new_picture;
     }
-    t_lines = row;
-    t_columns = col;
+    t_lines = newsize.ws_row;
+    t_columns = newsize.ws_col;
+    scr_lns = t_lines;	/* XXX: scr_lns 跟 t_lines 有什麼不同, 為何分成兩個 */
     b_lines = t_lines - 1;
     p_lines = t_lines - 4;
-}
 
-static void
-term_resize_catch(int sig)
-{
-    struct winsize  newsize;
-
-    signal(SIGWINCH, SIG_IGN);	/* Don't bother me! */
-    ioctl(0, TIOCGWINSZ, &newsize);
-
-    term_resize(newsize.ws_row, newsize.ws_col);
-
-    signal(SIGWINCH, term_resize_catch);
+    signal(SIGWINCH, term_resize);
 }
 
-#ifndef SKIP_TELNET_CONTROL_SIGNAL
-void
-telnet_parse_size(const unsigned char* msg){
-    /* msg[0] == IAC, msg[1] == SB, msg[2] = TELOPT_NAWS */
-    int i = 4, row, col;
-
-    col = msg[3] << 8;
-    if(msg[i] == 0xff)
-	++i; /* avoid escaped 0xff */
-    col |= msg[i++];
-
-    row = msg[i++] << 8;
-    if(msg[i] == 0xff)
-	++i;
-    row |= msg[i];
-    term_resize(row, col);
-}
-#endif
-
 int
 term_init()
 {
-    signal(SIGWINCH, term_resize_catch);
+    signal(SIGWINCH, term_resize);
     return YEA;
 }