sbase

commit 0b4c2ceb2f4594cc9d5ca09e39fb57f6e4f82bfb
parent 53040766d1a09baa7412c73c9a93afac2bfd6acc
Author: Heiko Berges <hbs-bierbaum@t-online.de>
Date:   Thu, 21 Sep 2023 14:56:58 +0200

ed: Add support for ! in w command

When the file name begins with ! then the addressed buffer content is
piped to the name of the file that is considered a command that is
executed in a shell.

Diffstat:
M
ed.c
 | 
10
++++++++--

1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/ed.c b/ed.c
@@ -626,8 +626,14 @@ dowrite(const char *fname, int trunc)
 	size_t bytecount = 0;
 	int i, line;
 
-	if (!(fp = fopen(fname, (trunc) ? "w" : "a")))
-		error("input/output error");
+	if(fname[0] == '!') {
+		fname++;
+		if((fp = popen(fname, "r")) == NULL)
+			error("Bad Exec");
+	} else {
+		if ((fp = fopen(fname, "r")) == NULL)
+			error("cannot open input file");
+	}
 
 	line = curln;
 	for (i = line1; i <= line2; ++i) {