save commit

2026-02-09 20:47:43 +01:00
parent e983f7fe64
commit 280fa51f94
39 changed files with 3400 additions and 239 deletions
--- a/minishell-codex/src/env/env.c
+++ b/minishell-codex/src/env/env.c
@@ -0,0 +1,171 @@
+#include "minishell.h"
+
+static t_env *env_new(const char *key, const char *value)
+{
+	t_env *n = (t_env *)calloc(1, sizeof(t_env));
+	if (!n)
+		return NULL;
+	n->key = ms_strdup(key);
+	n->value = value ? ms_strdup(value) : ms_strdup("");
+	if (!n->key || !n->value)
+	{
+		free(n->key);
+		free(n->value);
+		free(n);
+		return NULL;
+	}
+	return n;
+}
+
+void env_init(t_shell *sh, char **envp)
+{
+	int i;
+	char *eq;
+
+	sh->env = NULL;
+	if (!envp)
+		return;
+	i = 0;
+	while (envp[i])
+	{
+		eq = strchr(envp[i], '=');
+		if (eq)
+		{
+			char *key = ms_strndup(envp[i], (size_t)(eq - envp[i]));
+			char *val = ms_strdup(eq + 1);
+			env_set(sh, key, val);
+			free(key);
+			free(val);
+		}
+		i++;
+	}
+}
+
+void env_clear(t_shell *sh)
+{
+	t_env *cur = sh->env;
+	t_env *next;
+
+	while (cur)
+	{
+		next = cur->next;
+		free(cur->key);
+		free(cur->value);
+		free(cur);
+		cur = next;
+	}
+	sh->env = NULL;
+}
+
+char *env_get(t_shell *sh, const char *key)
+{
+	t_env *cur = sh->env;
+
+	while (cur)
+	{
+		if (strcmp(cur->key, key) == 0)
+			return cur->value;
+		cur = cur->next;
+	}
+	return NULL;
+}
+
+int env_set(t_shell *sh, const char *key, const char *value)
+{
+	t_env *cur = sh->env;
+	t_env *prev = NULL;
+
+	while (cur)
+	{
+		if (strcmp(cur->key, key) == 0)
+		{
+			char *dup = ms_strdup(value ? value : "");
+			if (!dup)
+				return 1;
+			free(cur->value);
+			cur->value = dup;
+			return 0;
+		}
+		prev = cur;
+		cur = cur->next;
+	}
+	cur = env_new(key, value);
+	if (!cur)
+		return 1;
+	if (prev)
+		prev->next = cur;
+	else
+		sh->env = cur;
+	return 0;
+}
+
+int env_unset(t_shell *sh, const char *key)
+{
+	t_env *cur = sh->env;
+	t_env *prev = NULL;
+
+	while (cur)
+	{
+		if (strcmp(cur->key, key) == 0)
+		{
+			if (prev)
+				prev->next = cur->next;
+			else
+				sh->env = cur->next;
+			free(cur->key);
+			free(cur->value);
+			free(cur);
+			return 0;
+		}
+		prev = cur;
+		cur = cur->next;
+	}
+	return 0;
+}
+
+char **env_to_envp(t_shell *sh)
+{
+	char **envp;
+	int count = 0;
+	t_env *cur = sh->env;
+	int i = 0;
+
+	while (cur)
+	{
+		count++;
+		cur = cur->next;
+	}
+	envp = (char **)calloc((size_t)count + 1, sizeof(char *));
+	if (!envp)
+		return NULL;
+	cur = sh->env;
+	while (cur)
+	{
+		char *kv = ms_strjoin3(cur->key, "=", cur->value);
+		envp[i++] = kv;
+		cur = cur->next;
+	}
+	envp[i] = NULL;
+	return envp;
+}
+
+void env_free_envp(char **envp)
+{
+	int i = 0;
+	if (!envp)
+		return;
+	while (envp[i])
+		free(envp[i++]);
+	free(envp);
+}
+
+void env_print(t_shell *sh)
+{
+	t_env *cur = sh->env;
+	while (cur)
+	{
+		if (cur->value)
+			printf("%s=%s\n", cur->key, cur->value);
+		cur = cur->next;
+	}
+}