utils: add LXC_PROC_PID_FD_LEN

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
lxc · May 4, 2018 · aa769a2 · aa769a2
1 parent cd90db2
commit aa769a2
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/src/lxc/utils.h b/src/lxc/utils.h
@@ -101,6 +101,17 @@
 #define LXC_LINELEN 4096
 #define LXC_IDMAPLEN 4096
 #define LXC_MAX_BUFFER 4096
+/* /proc/       =    6
+ *                +
+ * <pid-as-str> =   LXC_NUMSTRLEN64
+ *                +
+ * /fd/         =    4
+ *                +
+ * <fd-as-str>  =   LXC_NUMSTRLEN64
+ *                +
+ * \0           =    1
+ */
+#define LXC_PROC_PID_FD_LEN (6 + LXC_NUMSTRLEN64 + 4 + LXC_NUMSTRLEN64 + 1)
 
 /* returns 1 on success, 0 if there were any failures */
 extern int lxc_rmdir_onedev(const char *path, const char *exclude);