dfm: Add privilege escalation.

Pressing 'Z' (default) will spawn a nested dfm by escalating privileges
using the value of DFM_SU (default 'sudo'). Pressing 'Z' again inside
of this escalated mode returns to the original dfm.

1 files changed, 9 insertions, 0 deletions

diff --git a/lib/util.h b/lib/util.h
index 9a69746..1eeb8dd 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -336,5 +336,14 @@ path_resolve(char *s, usize l)
   return w;
 }
 
+static inline const char *
+basename_l(const char *s, usize l)
+{
+  for (usize i = l; i; i--)
+    if (s[i - 1] == '/')
+      return s + i;
+  return s;
+}
+
 #endif // DYLAN_UTIL_H