ident: do not drop username when reading from /etc/mailname
An earlier conversion from fgets() to strbuf_getline() in the
codepath to read from /etc/mailname to learn the default host-part
of the ident e-mail address forgot that strbuf_getline() stores the
line at the beginning of the buffer just like fgets().
The "username@" the caller has prepared in the strbuf, expecting the
function to append the host-part to it, was lost because of this.
Reported-by: Mihai Rusu <dizzy@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/ident.c b/ident.c
index 484e0a9..fb4cc72 100644
--- a/ident.c
+++ b/ident.c
@@ -41,6 +41,7 @@
static int add_mailname_host(struct strbuf *buf)
{
FILE *mailname;
+ struct strbuf mailnamebuf = STRBUF_INIT;
mailname = fopen("/etc/mailname", "r");
if (!mailname) {
@@ -49,14 +50,17 @@
strerror(errno));
return -1;
}
- if (strbuf_getline(buf, mailname, '\n') == EOF) {
+ if (strbuf_getline(&mailnamebuf, mailname, '\n') == EOF) {
if (ferror(mailname))
warning("cannot read /etc/mailname: %s",
strerror(errno));
+ strbuf_release(&mailnamebuf);
fclose(mailname);
return -1;
}
/* success! */
+ strbuf_addbuf(buf, &mailnamebuf);
+ strbuf_release(&mailnamebuf);
fclose(mailname);
return 0;
}
