X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/01c034ad857128c51482a563befb374e38ebe668..32874aeac8dacbca26663777b39a79efc5d8dc4b:/ldisc.c

diff --git a/ldisc.c b/ldisc.c
index 1ab832dd..a42db932 100644
--- a/ldisc.c
+++ b/ldisc.c
@@ -18,164 +18,170 @@
                  (cfg.localedit == LD_BACKEND && \
                       (back->ldisc(LD_EDIT) || term_ldisc(LD_EDIT))))
 
-static void c_write (char *buf, int len) {
+static void c_write(char *buf, int len)
+{
     from_backend(0, buf, len);
 }
 
 static char *term_buf = NULL;
 static int term_buflen = 0, term_bufsiz = 0, term_quotenext = 0;
 
-static int plen(unsigned char c) {
-    if ((c >= 32 && c <= 126) ||
-        (c >= 160))
-        return 1;
+static int plen(unsigned char c)
+{
+    if ((c >= 32 && c <= 126) || (c >= 160))
+	return 1;
     else if (c < 128)
-        return 2;                      /* ^x for some x */
+	return 2;		       /* ^x for some x */
     else
-        return 4;                      /* <XY> for hex XY */
+	return 4;		       /* <XY> for hex XY */
 }
 
-static void pwrite(unsigned char c) {
-    if ((c >= 32 && c <= 126) ||
-        (c >= 160)) {
-        c_write(&c, 1);
+static void pwrite(unsigned char c)
+{
+    if ((c >= 32 && c <= 126) || (c >= 160)) {
+	c_write(&c, 1);
     } else if (c < 128) {
-        char cc[2];
-        cc[1] = (c == 127 ? '?' : c + 0x40);
-        cc[0] = '^';
-        c_write(cc, 2);
+	char cc[2];
+	cc[1] = (c == 127 ? '?' : c + 0x40);
+	cc[0] = '^';
+	c_write(cc, 2);
     } else {
-        char cc[5];
-        sprintf(cc, "<%02X>", c);
-        c_write(cc, 4);
+	char cc[5];
+	sprintf(cc, "<%02X>", c);
+	c_write(cc, 4);
     }
 }
 
-static void bsb(int n) {
+static void bsb(int n)
+{
     while (n--)
 	c_write("\010 \010", 3);
 }
 
 #define CTRL(x) (x^'@')
 
-void ldisc_send(char *buf, int len) {
+void ldisc_send(char *buf, int len)
+{
     /*
      * Called with len=0 when the options change. We must inform
      * the front end in case it needs to know.
      */
     if (len == 0) {
-        void ldisc_update(int echo, int edit);
-        ldisc_update(ECHOING, EDITING);
+	void ldisc_update(int echo, int edit);
+	ldisc_update(ECHOING, EDITING);
     }
     /*
      * Either perform local editing, or just send characters.
      */
     if (EDITING) {
-        while (len--) {
-            char c;
-            c = *buf++;
-            switch (term_quotenext ? ' ' : c) {
-                /*
-                 * ^h/^?: delete one char and output one BSB
-                 * ^w: delete, and output BSBs, to return to last
-                 * space/nonspace boundary
-                 * ^u: delete, and output BSBs, to return to BOL
-                 * ^c: Do a ^u then send a telnet IP
-                 * ^z: Do a ^u then send a telnet SUSP
-                 * ^\: Do a ^u then send a telnet ABORT
-                 * ^r: echo "^R\n" and redraw line
-                 * ^v: quote next char
-                 * ^d: if at BOL, end of file and close connection,
-                 * else send line and reset to BOL
-                 * ^m: send line-plus-\r\n and reset to BOL
-                 */
-              case CTRL('H'): case CTRL('?'):      /* backspace/delete */
-                if (term_buflen > 0) {
-                    if (ECHOING)
-                        bsb(plen(term_buf[term_buflen-1]));
-                    term_buflen--;
-                }
-                break;
-              case CTRL('W'):		       /* delete word */
-                while (term_buflen > 0) {
-                    if (ECHOING)
-                        bsb(plen(term_buf[term_buflen-1]));
-                    term_buflen--;
-                    if (term_buflen > 0 &&
-                        isspace(term_buf[term_buflen-1]) &&
-                        !isspace(term_buf[term_buflen]))
-                        break;
-                }
-                break;
-              case CTRL('U'):	       /* delete line */
-              case CTRL('C'):	       /* Send IP */
-              case CTRL('\\'):	       /* Quit */
-              case CTRL('Z'):	       /* Suspend */
-                while (term_buflen > 0) {
-                    if (ECHOING)
-                        bsb(plen(term_buf[term_buflen-1]));
-                    term_buflen--;
-                }
-                back->special (TS_EL);
-                if( c == CTRL('C') )  back->special (TS_IP);
-                if( c == CTRL('Z') )  back->special (TS_SUSP);
-                if( c == CTRL('\\') ) back->special (TS_ABORT);
-                break;
-              case CTRL('R'):	       /* redraw line */
-                if (ECHOING) {
-                    int i;
-                    c_write("^R\r\n", 4);
-                    for (i = 0; i < term_buflen; i++)
-                        pwrite(term_buf[i]);
-                }
-                break;
-              case CTRL('V'):	       /* quote next char */
-                term_quotenext = TRUE;
-                break;
-              case CTRL('D'):	       /* logout or send */
-                if (term_buflen == 0) {
-                    back->special (TS_EOF);
-                } else {
-                    back->send(term_buf, term_buflen);
-                    term_buflen = 0;
-                }
-                break;
-              case CTRL('M'):	       /* send with newline */
-                if (term_buflen > 0)
-                    back->send(term_buf, term_buflen);
-                if (cfg.protocol == PROT_RAW)
-                    back->send("\r\n", 2);
-                else
-                    back->send("\r", 1);
-                if (ECHOING)
-                    c_write("\r\n", 2);
-                term_buflen = 0;
-                break;
-              default:                     /* get to this label from ^V handler */
-                if (term_buflen >= term_bufsiz) {
-                    term_bufsiz = term_buflen + 256;
-                    term_buf = saferealloc(term_buf, term_bufsiz);
-                }
-                term_buf[term_buflen++] = c;
-                if (ECHOING)
-                    pwrite(c);
-                term_quotenext = FALSE;
-                break;
-            }
-        }
+	while (len--) {
+	    char c;
+	    c = *buf++;
+	    switch (term_quotenext ? ' ' : c) {
+		/*
+		 * ^h/^?: delete one char and output one BSB
+		 * ^w: delete, and output BSBs, to return to last
+		 * space/nonspace boundary
+		 * ^u: delete, and output BSBs, to return to BOL
+		 * ^c: Do a ^u then send a telnet IP
+		 * ^z: Do a ^u then send a telnet SUSP
+		 * ^\: Do a ^u then send a telnet ABORT
+		 * ^r: echo "^R\n" and redraw line
+		 * ^v: quote next char
+		 * ^d: if at BOL, end of file and close connection,
+		 * else send line and reset to BOL
+		 * ^m: send line-plus-\r\n and reset to BOL
+		 */
+	      case CTRL('H'):
+	      case CTRL('?'):	       /* backspace/delete */
+		if (term_buflen > 0) {
+		    if (ECHOING)
+			bsb(plen(term_buf[term_buflen - 1]));
+		    term_buflen--;
+		}
+		break;
+	      case CTRL('W'):	       /* delete word */
+		while (term_buflen > 0) {
+		    if (ECHOING)
+			bsb(plen(term_buf[term_buflen - 1]));
+		    term_buflen--;
+		    if (term_buflen > 0 &&
+			isspace(term_buf[term_buflen - 1]) &&
+			!isspace(term_buf[term_buflen]))
+			break;
+		}
+		break;
+	      case CTRL('U'):	       /* delete line */
+	      case CTRL('C'):	       /* Send IP */
+	      case CTRL('\\'):	       /* Quit */
+	      case CTRL('Z'):	       /* Suspend */
+		while (term_buflen > 0) {
+		    if (ECHOING)
+			bsb(plen(term_buf[term_buflen - 1]));
+		    term_buflen--;
+		}
+		back->special(TS_EL);
+		if (c == CTRL('C'))
+		    back->special(TS_IP);
+		if (c == CTRL('Z'))
+		    back->special(TS_SUSP);
+		if (c == CTRL('\\'))
+		    back->special(TS_ABORT);
+		break;
+	      case CTRL('R'):	       /* redraw line */
+		if (ECHOING) {
+		    int i;
+		    c_write("^R\r\n", 4);
+		    for (i = 0; i < term_buflen; i++)
+			pwrite(term_buf[i]);
+		}
+		break;
+	      case CTRL('V'):	       /* quote next char */
+		term_quotenext = TRUE;
+		break;
+	      case CTRL('D'):	       /* logout or send */
+		if (term_buflen == 0) {
+		    back->special(TS_EOF);
+		} else {
+		    back->send(term_buf, term_buflen);
+		    term_buflen = 0;
+		}
+		break;
+	      case CTRL('M'):	       /* send with newline */
+		if (term_buflen > 0)
+		    back->send(term_buf, term_buflen);
+		if (cfg.protocol == PROT_RAW)
+		    back->send("\r\n", 2);
+		else
+		    back->send("\r", 1);
+		if (ECHOING)
+		    c_write("\r\n", 2);
+		term_buflen = 0;
+		break;
+	      default:		       /* get to this label from ^V handler */
+		if (term_buflen >= term_bufsiz) {
+		    term_bufsiz = term_buflen + 256;
+		    term_buf = saferealloc(term_buf, term_bufsiz);
+		}
+		term_buf[term_buflen++] = c;
+		if (ECHOING)
+		    pwrite(c);
+		term_quotenext = FALSE;
+		break;
+	    }
+	}
     } else {
-        if( term_buflen != 0 )
-        {
-            back->send(term_buf, term_buflen);
-            while (term_buflen > 0) {
-                bsb(plen(term_buf[term_buflen-1]));
-                term_buflen--;
-            }
-        }
-        if (len > 0) {
-            if (ECHOING)
-                c_write(buf, len);
-            back->send(buf, len);
-        }
+	if (term_buflen != 0) {
+	    back->send(term_buf, term_buflen);
+	    while (term_buflen > 0) {
+		bsb(plen(term_buf[term_buflen - 1]));
+		term_buflen--;
+	    }
+	}
+	if (len > 0) {
+	    if (ECHOING)
+		c_write(buf, len);
+	    back->send(buf, len);
+	}
     }
 }