ujail: use PATH_MAX for path related buffers

[project/procd.git] / jail / jail.c

diff --git a/jail/jail.c b/jail/jail.c
index e8c8f08..90aa482 100644 (file)
--- a/jail/jail.c
+++ b/jail/jail.c
@@ -25,6 +25,7 @@
 #include <fcntl.h>
 #include <libgen.h>
 #include <sched.h>
+#include <linux/limits.h>
 
 #include "elf.h"
 #include "capabilities.h"
@@ -93,8 +94,8 @@ static int mount_bind(const char *root, const char *path, const char *name, int
 {
        const char *p = path;
        struct stat s;
-       char old[256];
-       char new[256];
+       char old[PATH_MAX];
+       char new[PATH_MAX];
        int fd;
 
        if (strstr(p, "local"))
@@ -209,8 +210,8 @@ static int build_jail_fs()
 static char** build_envp(const char *seccomp)
 {
        static char *envp[MAX_ENVP];
-       static char preload_var[64];
-       static char seccomp_var[64];
+       static char preload_var[PATH_MAX];
+       static char seccomp_var[PATH_MAX];
        static char debug_var[] = "LD_DEBUG=all";
        const char *preload_lib = find_lib("libpreload-seccomp.so");
        int count = 0;