File _service:tar_scm:backport-Implement-osc8_open.p... of Package less

File _service:tar_scm:backport-Implement-osc8_open.patch of Package less

From 90d9d12ba9d3818a0074f33c5153b577d07aa8fd Mon Sep 17 00:00:00 2001
From: Mark Nudelman <markn@greenwoodsoftware.com>
Date: Tue, 16 Jan 2024 18:14:33 -0800
Subject: [PATCH] Implement osc8_open().

---
 filename.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/filename.c b/filename.c
index 672dc94..5d7a5ef 100644
--- a/filename.c
+++ b/filename.c
@@ -136,7 +136,7 @@ static int metachar(char c)
 /*
  * Insert a backslash before each metacharacter in a string.
  */
-public char * shell_quote(constant char *s)
+public char * shell_quoten(constant char *s, size_t slen)
 {
 	constant char *p;
 	char *np;
@@ -151,7 +151,7 @@ public char * shell_quote(constant char *s)
 	 * Determine how big a string we need to allocate.
 	 */
 	len = 1; /* Trailing null byte */
-	for (p = s;  *p != '\0';  p++)
+	for (p = s;  p < s + slen;  p++)
 	{
 		len++;
 		if (*p == openquote || *p == closequote)
@@ -181,7 +181,7 @@ public char * shell_quote(constant char *s)
 			 * We can't quote a string that contains quotes.
 			 */
 			return (NULL);
-		len = (int) strlen(s) + 3;
+		len = slen + 3;
 	}
 	/*
 	 * Allocate and construct the new string.
@@ -189,10 +189,11 @@ public char * shell_quote(constant char *s)
 	newstr = np = (char *) ecalloc(len, sizeof(char));
 	if (use_quotes)
 	{
-		SNPRINTF3(newstr, len, "%c%s%c", openquote, s, closequote);
+		SNPRINTF4(newstr, len, "%c%.*s%c", openquote, (int) slen, s, closequote);
 	} else
 	{
-		while (*s != '\0')
+		constant char *es = s + slen;
+		while (s < es)
 		{
 			if (metachar(*s))
 			{
@@ -209,6 +210,11 @@ public char * shell_quote(constant char *s)
 	return (newstr);
 }
 
+public char * shell_quote(char *s)
+{
+	return shell_quoten(s, strlen(s));
+}
+
 /*
  * Return a pathname that points to a specified file in a specified directory.
  * Return NULL if the file does not exist in the directory.
-- 
2.43.0