1 /* $OpenBSD: env.c,v 1.10 2019/07/07 19:21:28 tedu Exp $ */
39 struct env {  struct
44 static void fillenv(struct env *env, const char **envlist);  argument
77 addnode(struct env *env, const char *key, const char *value)  in addnode()  argument
82 	RB_INSERT(envtree, &env->root, node);  in addnode()
83 	env->count++;  in addnode()
86 static struct env *
94 	struct env *env;  in createenv()  local
97 	env = malloc(sizeof(*env));  in createenv()
98 	if (!env)  in createenv()
100 	RB_INIT(&env->root);  in createenv()
101 	env->count = 0;  in createenv()
103 	addnode(env, "DOAS_USER", mypw->pw_name);  in createenv()
104 	addnode(env, "HOME", targpw->pw_dir);  in createenv()
105 	addnode(env, "LOGNAME", targpw->pw_name);  in createenv()
106 	addnode(env, "PATH", getenv("PATH"));  in createenv()
107 	addnode(env, "SHELL", targpw->pw_shell);  in createenv()
108 	addnode(env, "USER", targpw->pw_name);  in createenv()
110 	fillenv(env, copyset);  in createenv()
133 			if (RB_INSERT(envtree, &env->root, node)) {  in createenv()
137 				env->count++;  in createenv()
142 	return env;  in createenv()
146 flattenenv(struct env *env)  in flattenenv()  argument
152 	envp = reallocarray(NULL, env->count + 1, sizeof(char *));  in flattenenv()
156 	RB_FOREACH(node, envtree, &env->root) {  in flattenenv()
166 fillenv(struct env *env, const char **envlist)  in fillenv()  argument
178 		/* parse out env name */  in fillenv()
192 		if ((node = RB_FIND(envtree, &env->root, &key))) {  in fillenv()
193 			RB_REMOVE(envtree, &env->root, node);  in fillenv()
195 			env->count--;  in fillenv()
218 			RB_INSERT(envtree, &env->root, node);  in fillenv()
219 			env->count++;  in fillenv()
228 	struct env *env;  in prepenv()  local
230 	env = createenv(rule, mypw, targpw);  in prepenv()
232 		fillenv(env, rule->envlist);  in prepenv()
234 	return flattenenv(env);  in prepenv()