X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=8ca310c92ebedb20d5f31f922d9e3f50c0d96733;hb=753fe862b14c7dd4b0449ab2c3bf22ecbb10030e;hp=0204b2e14d1d561f0bdfbf3e0007bdeec03de37f;hpb=89807ed453e27893dea5ac73ee2c6b4f8dd15afb;p=st.git

diff --git a/st.c b/st.c
index 0204b2e..8ca310c 100644
--- a/st.c
+++ b/st.c
@@ -459,7 +459,7 @@ static void mousereport(XEvent *);
 
 static size_t utf8decode(char *, long *, size_t);
 static long utf8decodebyte(char, size_t *);
-static size_t utf8encode(long, char *, size_t);
+static size_t utf8encode(long, char *);
 static char utf8encodebyte(long, size_t);
 static size_t utf8len(char *);
 static size_t utf8validate(long *, size_t);
@@ -610,11 +610,11 @@ utf8decodebyte(char c, size_t *i) {
 }
 
 size_t
-utf8encode(long u, char *c, size_t clen) {
+utf8encode(long u, char *c) {
 	size_t len, i;
 
 	len = utf8validate(&u, 0);
-	if(clen < len)
+	if(len > UTF_SIZ)
 		return 0;
 	for(i = len - 1; i != 0; --i) {
 		c[i] = utf8encodebyte(u, 0);
@@ -1276,7 +1276,8 @@ stty(void)
 		siz-= n + 1;
 	}
 	*q = '\0';
-	system(cmd);
+	if (system(cmd) != 0)
+	    perror("Couldn't call stty");
 }
 
 void
@@ -1350,7 +1351,7 @@ ttyread(void) {
 	buflen += ret;
 	ptr = buf;
 	while((charsize = utf8decode(ptr, &unicodep, buflen))) {
-		utf8encode(unicodep, s, UTF_SIZ);
+		utf8encode(unicodep, s);
 		tputc(s, charsize);
 		ptr += charsize;
 		buflen -= charsize;
@@ -2268,8 +2269,7 @@ strhandle(void) {
 
 	term.esc &= ~(ESC_STR_END|ESC_STR);
 	strparse();
-	narg = strescseq.narg;
-	par = atoi(strescseq.args[0]);
+	par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0;
 
 	switch(strescseq.type) {
 	case ']': /* OSC -- Operating System Command */
@@ -2927,7 +2927,7 @@ xloadcols(void) {
 	Color *cp;
 
 	if(loaded) {
-		for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
+		for (cp = dc.col; cp < &dc.col[LEN(dc.col)]; ++cp)
 			XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
 	}
 
@@ -3672,7 +3672,6 @@ drawregion(int x1, int y1, int x2, int y2) {
 	Glyph base, new;
 	char buf[DRAW_BUF_SIZ];
 	bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
-	long unicodep;
 
 	if(!(xw.state & WIN_VISIBLE))
 		return;
@@ -3701,7 +3700,7 @@ drawregion(int x1, int y1, int x2, int y2) {
 				base = new;
 			}
 
-			sl = utf8decode(new.c, &unicodep, UTF_SIZ);
+			sl = utf8len(new.c);
 			memcpy(buf+ib, new.c, sl);
 			ib += sl;
 			ic += (new.mode & ATTR_WIDE)? 2 : 1;
@@ -3849,7 +3848,7 @@ kpress(XEvent *ev) {
 		if(IS_SET(MODE_8BIT)) {
 			if(*buf < 0177) {
 				c = *buf | 0x80;
-				len = utf8encode(c, buf, UTF_SIZ);
+				len = utf8encode(c, buf);
 			}
 		} else {
 			buf[1] = buf[0];
@@ -4066,7 +4065,7 @@ run:
 	if(argc > 0) {
 		/* eat all remaining arguments */
 		opt_cmd = argv;
-		if(!opt_title)
+		if(!opt_title && !opt_line)
 			opt_title = basename(xstrdup(argv[0]));
 	}
 	setlocale(LC_CTYPE, "");