ust-fd: Add close_range declaration

[lttng-ust.git] / liblttng-ust / getenv.c

diff --git a/liblttng-ust/getenv.c b/liblttng-ust/getenv.c
deleted file mode 100644 (file)
index f2222dd..0000000
--- a/liblttng-ust/getenv.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * SPDX-License-Identifier: LGPL-2.1-only
- *
- * Copyright (C) 2017 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <sys/types.h>
-#include <usterr-signal-safe.h>
-#include <ust-helper.h>
-#include "getenv.h"
-
-enum lttng_env_secure {
-       LTTNG_ENV_SECURE,
-       LTTNG_ENV_NOT_SECURE,
-};
-
-struct lttng_env {
-       const char *key;
-       enum lttng_env_secure secure;
-       char *value;
-};
-
-static struct lttng_env lttng_env[] = {
-       /*
-        * LTTNG_UST_DEBUG is used directly by snprintf, because it
-        * needs to be already set for ERR() used in
-        * lttng_ust_getenv_init().
-        */
-       { "LTTNG_UST_DEBUG", LTTNG_ENV_NOT_SECURE, NULL, },
-
-       /* Env. var. which can be used in setuid/setgid executables. */
-       { "LTTNG_UST_WITHOUT_BADDR_STATEDUMP", LTTNG_ENV_NOT_SECURE, NULL, },
-       { "LTTNG_UST_REGISTER_TIMEOUT", LTTNG_ENV_NOT_SECURE, NULL, },
-
-       /* Env. var. which are not fetched in setuid/setgid executables. */
-       { "LTTNG_UST_CLOCK_PLUGIN", LTTNG_ENV_SECURE, NULL, },
-       { "LTTNG_UST_GETCPU_PLUGIN", LTTNG_ENV_SECURE, NULL, },
-       { "LTTNG_UST_ALLOW_BLOCKING", LTTNG_ENV_SECURE, NULL, },
-       { "HOME", LTTNG_ENV_SECURE, NULL, },
-       { "LTTNG_HOME", LTTNG_ENV_SECURE, NULL, },
-};
-
-static
-int lttng_is_setuid_setgid(void)
-{
-       return geteuid() != getuid() || getegid() != getgid();
-}
-
-char *lttng_getenv(const char *name)
-{
-       size_t i;
-       struct lttng_env *e;
-       bool found = false;
-
-       for (i = 0; i < LTTNG_ARRAY_SIZE(lttng_env); i++) {
-               e = &lttng_env[i];
-
-               if (strcmp(e->key, name) == 0) {
-                       found = true;
-                       break;
-               }
-       }
-       if (!found) {
-               return NULL;
-       }
-       return e->value;
-}
-
-void lttng_ust_getenv_init(void)
-{
-       size_t i;
-
-       for (i = 0; i < LTTNG_ARRAY_SIZE(lttng_env); i++) {
-               struct lttng_env *e = &lttng_env[i];
-
-               if (e->secure == LTTNG_ENV_SECURE && lttng_is_setuid_setgid()) {
-                       ERR("Getting environment variable '%s' from setuid/setgid binary refused for security reasons.",
-                               e->key);
-                       continue;
-               }
-               e->value = getenv(e->key);
-       }
-}