st

fork of suckless's simple terminal
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commit 129bcd7586968ed882e41c0df76c5c0c0c414e6d
parent 059d2ba264f8ee2f6fbdb4d7199b611433ad8a72
Author: Aurélien Aptel <aurelien.aptel@gmail.com>
Date:   Tue, 26 May 2009 02:21:02 +0200

fixed a memory leak & segfault in tresize.

Diffstat:
Mst.c | 25++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/st.c b/st.c
@@ -573,7 +573,7 @@ void
 tputc(char c) {
     static int inesc = 0;
 
-    dump(c);
+    //dump(c);
     /* start of escseq */
     if(c == '\033')
         escreset(), inesc = 1;
@@ -636,20 +636,24 @@ tresize(int col, int row) {
 
     if(col < 1 || row < 1)
         return;
+    /* alloc */
     line = calloc(row, sizeof(Line));
     for(i = 0 ; i < row; i++)
         line[i] = calloc(col, sizeof(Glyph));
-    for(i = 0 ; i < minrow; i++) {
-        memcpy(line[i], term.line[i], mincol * sizeof(Glyph));
-        free(term.line[i]);
-    }
+    /* copy */
+    for(i = 0 ; i < minrow; i++)
+        memcpy(line[i], term.line[i], mincol * sizeof(Glyph));
+    /* free */
+    for(i = 0; i < term.row; i++)
+        free(term.line[i]);
     free(term.line);
+
     LIMIT(term.c.x, 0, col-1);
     LIMIT(term.c.y, 0, row-1);
     LIMIT(term.top, 0, row-1);
     LIMIT(term.bot, 0, row-1);
-    //    if(term.bot == term.row-1)
-    term.bot = row-1;
+
+    term.bot = row-1;
     term.line = line;
     term.col = col, term.row = row;
 }
@@ -775,7 +779,10 @@ xcursor(int mode) {
     static int oldx = 0;
     static int oldy = 0;
     Glyph g = {' ', ATnone, DefaultBG, DefaultCS, 0};
-
+    
+    LIMIT(oldx, 0, term.col-1);
+    LIMIT(oldy, 0, term.row-1);
+    
     if(term.line[term.c.y][term.c.x].state & CRset)
         g.c = term.line[term.c.y][term.c.x].c;
     /* remove the old cursor */
@@ -859,7 +866,7 @@ resize(XEvent *e) {
     col = e->xconfigure.width / xw.cw;
     row = e->xconfigure.height / xw.ch;
     
-    if(term.col != col && term.row != row) {
+    if(term.col != col || term.row != row) {
         tresize(col, row);
         ttyresize(col, row);
         xw.w = e->xconfigure.width;