From: dsp <>
Date: Tue, 22 Jan 2008 23:15:31 +0000 (+0000)
Subject: Fall back to finding the home directory using getpwuid(3) if the HOME
X-Git-Url: https://diplodocus.org/git/mdeliver/commitdiff_plain/3ccd655f2af2469c48d22560963c4e387ccce8b1?ds=inline;hp=6bcc7209b6b0d137a4ff92acf219ccb36628c8f6

Fall back to finding the home directory using getpwuid(3) if the HOME
environment variable isn't set.
---

diff --git a/mdeliver.1.pod b/mdeliver.1.pod
index d3971c2..57439fe 100644
--- a/mdeliver.1.pod
+++ b/mdeliver.1.pod
@@ -49,7 +49,7 @@ The following environment variable affects the execution of B<mdeliver>:
 The HOME environment variable defines in which directory the Maildir will
 be found.  If HOME is set to ``/home/charlie'', ``/home/charlie/Maildir''
 will be where delivery is attempted to.  If this variable is not set,
-delivery will fail.
+B<mdeliver> will fall back to using getpwuid(3).
 
 =back
 
diff --git a/mdeliver.c b/mdeliver.c
index 44e7e16..31144f9 100644
--- a/mdeliver.c
+++ b/mdeliver.c
@@ -17,6 +17,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <pwd.h>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -359,6 +360,7 @@ main(int argc, char *argv[])
 {
     char *home;
     char newfn[LEN_FILENAME];
+    struct passwd *pwd;
     struct stat st;
 
     if (argv[1] && argv[1][0] == '-' && argv[1][1] == 'v') {
@@ -367,7 +369,11 @@ main(int argc, char *argv[])
     }
 
     if ((home = getenv("HOME")) == NULL) {
-        errx("HOME is not set.");
+        if ((pwd = getpwuid(geteuid())) != NULL) {
+            home = pwd->pw_dir;
+        } else {
+            errx("HOME is not set and getpwuid() failed.");
+        }
     }
 
     if (chdir(home) != 0) {