Nedmail patch - no reply to self

Nedmail patch - no reply to self

[Alex Musolino]

Hi all,

The following patch allows users to specify a list of addresses
they do not wish to include when "replying to all" from nedmail(1).

Of course, in the event that people are happy with this change, I
would update the relevant man pages also.

diff -r 969b9a225c4a sys/src/cmd/upas/ned/nedmail.c
--- a/sys/src/cmd/upas/ned/nedmail.c	Tue Sep 01 22:25:06 2020 +0930
+++ b/sys/src/cmd/upas/ned/nedmail.c	Sun Sep 13 18:06:54 2020 +0930
@@ -2358,11 +2358,37 @@
 	return m;
 }
 
+static int
+noreplyto(char *addr)
+{
+	char path[Pathlen], *line;
+	Biobuf *b;
+	int r;
+
+	r = 0;
+	seprint(path, path+sizeof(path), "/mail/box/%s/noreplyto", user);
+	b = Bopen(path, OREAD);
+	if(b != nil){
+		for(;;){
+			line = Brdline(b, '\n');
+			if(line == nil)
+				break;
+			line[Blinelen(b)-1] = 0;
+			if(strcmp(addr, line) == 0){
+				r = 1;
+				break;
+			}
+		}
+		Bterm(b);
+	}
+	return r;
+}
+
 Message*
 acmd(Cmd *c, Message *m)
 {
-	char *av[128], *rpath, *subject, *from, *to, *cc;
-	int i, ai;
+	char *av[128], *addrv[128], *rpath, *subject, *from, *to, *cc;
+	int i, ai, addri;
 
 	if(m->from == nil || m->to == nil || m->cc == nil){
 		eprint("!bad message\n");
@@ -2390,9 +2416,17 @@
 
 	for(i = 1; i < c->an && ai < nelem(av)-1; i++)
 		av[ai++] = c->av[i];
-	ai += tokenize822(from = strdup(m->from), &av[ai], nelem(av) - ai);
-	ai += tokenize822(to = strdup(m->to), &av[ai], nelem(av) - ai);
-	ai += tokenize822(cc = strdup(m->cc), &av[ai], nelem(av) - ai);
+	from = strdup(m->from);
+	to = strdup(m->to);
+	cc = strdup(m->cc);
+	addri = 0;
+	addri += tokenize822(from, &addrv[addri], nelem(addrv) - addri);
+	addri += tokenize822(to, &addrv[addri], nelem(addrv) - addri);
+	addri += tokenize822(cc, &addrv[addri], nelem(addrv) - addri);
+	for(i = 0; i < addri && ai < nelem(av)-1; i++){
+		if(!noreplyto(addrv[i]))
+			av[ai++] = addrv[i];
+	}
 	av[ai] = 0;
 	if(tomailer(av) == -1)
 		m = nil;

--
Cheers,
Alex Musolino