In case (some of) these environment variables are not set, the information
is taken from the configuration items user.name and user.email, or, if not
-present, system user name and fully qualified hostname.
+present, system user name and the hostname used for outgoing mail (taken
+from `/etc/mailname` and falling back to the fully qualified hostname when
+that file does not exist).
A commit comment is read from stdin. If a changelog
entry is not provided via "<" redirection, 'git commit-tree' will just wait
include::i18n.txt[]
+FILES
+-----
+/etc/mailname
+
SEE ALSO
--------
linkgit:git-write-tree[1]
}
+static int add_mailname_host(char *buf, size_t len)
+{
+ FILE *mailname;
+
+ mailname = fopen("/etc/mailname", "r");
+ if (!mailname) {
+ if (errno != ENOENT)
+ warning("cannot open /etc/mailname: %s",
+ strerror(errno));
+ return -1;
+ }
+ if (!fgets(buf, len, mailname)) {
+ if (ferror(mailname))
+ warning("cannot read /etc/mailname: %s",
+ strerror(errno));
+ fclose(mailname);
+ return -1;
+ }
+ /* success! */
+ fclose(mailname);
+ return 0;
+}
+
+static void add_domainname(char *buf, size_t len)
+{
+ struct hostent *he;
+ size_t namelen;
+ const char *domainname;
+
+ if (gethostname(buf, len)) {
+ warning("cannot get host name: %s", strerror(errno));
+ strlcpy(buf, "(none)", len);
+ return;
+ }
+ namelen = strlen(buf);
+ if (memchr(buf, '.', namelen))
+ return;
+
+ he = gethostbyname(buf);
+ buf[namelen++] = '.';
+ buf += namelen;
+ len -= namelen;
+ if (he && (domainname = strchr(he->h_name, '.')))
+ strlcpy(buf, domainname + 1, len);
+ else
+ strlcpy(buf, "(none)", len);
+}
+
static void copy_email(const struct passwd *pw)
{
/*
die("Your sysadmin must hate you!");
memcpy(git_default_email, pw->pw_name, len);
git_default_email[len++] = '@';
- gethostname(git_default_email + len, sizeof(git_default_email) - len);
- if (!strchr(git_default_email+len, '.')) {
- struct hostent *he = gethostbyname(git_default_email + len);
- char *domainname;
-
- len = strlen(git_default_email);
- git_default_email[len++] = '.';
- if (he && (domainname = strchr(he->h_name, '.')))
- strlcpy(git_default_email + len, domainname + 1,
- sizeof(git_default_email) - len);
- else
- strlcpy(git_default_email + len, "(none)",
- sizeof(git_default_email) - len);
- }
+
+ if (!add_mailname_host(git_default_email + len,
+ sizeof(git_default_email) - len))
+ return; /* read from "/etc/mailname" (Debian) */
+ add_domainname(git_default_email + len,
+ sizeof(git_default_email) - len);
}
static void setup_ident(void)