snac2

commit d2aa5727baf8b17f99d0ffc041b225463bd2684d
parent c562a4531c438b4848f569d2c3901708b7bbce43
Author: default <nobody@localhost>
Date:   Sun,  9 Jul 2023 20:23:38 +0200

Fixed failed mkdir() in restricted environments.

Diffstat:
M
snac.c
 | 
9
+++++++--
M
snac.h
 | 
3
++-

2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/snac.c b/snac.c
@@ -35,8 +35,13 @@ int mkdirx(const char *pathname)
 {
     int ret;
 
-    if ((ret = mkdir(pathname, DIR_PERM)) != -1)
-        ret = chmod(pathname, DIR_PERM);
+    if ((ret = mkdir(pathname, DIR_PERM)) != -1) {
+        /* try to the set the setgid bit, to allow system users
+           to create files in these directories using the
+           command-line tool. This may fail in some restricted
+           environments, but it's of no use there anyway */
+        chmod(pathname, DIR_PERM_ADD);
+    }
 
     return ret;
 }
diff --git a/snac.h b/snac.h
@@ -7,7 +7,8 @@
 
 #define WHAT_IS_SNAC_URL "https:/" "/comam.es/what-is-snac"
 
-#define DIR_PERM 02770
+#define DIR_PERM 00770
+#define DIR_PERM_ADD 02770
 
 #define ISO_DATE_SPEC "%Y-%m-%dT%H:%M:%SZ"