coverity: rundir: Fix memory leaks

Since we're no longer always returning a getenv result or some defined string, the callers should cleanup the variable after use. As a result, change from const char* to char*, add the needed free() everywhere and use strdup() on strings coming from getenv. Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

coverity: rundir: Fix memory leaks
fd8c2777 · Stéphane Graber · 44b9ae4b · fd8c2777
Commit fd8c2777 authored Feb 19, 2014 by Stéphane Graber
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utils.h src/lxc/utils.h +1 -1

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--- a/src/lxc/utils.h
+++ b/src/lxc/utils.h
@@ -39,7 +39,7 @@ extern void lxc_setup_fs(void);
 extern int get_u16(unsigned short *val, const char *arg, int base);
 extern int mkdir_p(const char *dir, mode_t mode);
 extern void remove_trailing_slashes(char *p);
-extern const char *get_rundir(void);
+extern char *get_rundir(void);
 extern const char *lxc_global_config_value(const char *option_name);