From f991d97d6060098002c0585898d5d9b7e37c2c0d Mon Sep 17 00:00:00 2001
From: savalet <savinien.petitjean@gmail.com>
Date: Wed, 12 Feb 2025 17:34:45 +0100
Subject: [PATCH] Add unset env func

---
 src/env.c | 14 ++++++++++++++
 src/env.h |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/src/env.c b/src/env.c
index 04215e5..bb864a4 100644
--- a/src/env.c
+++ b/src/env.c
@@ -16,12 +16,14 @@
 #include "u_mem.h"
 #include "u_str.h"
 
+__attribute__((nonnull))
 void debug_env_entries(env_t *env)
 {
     for (size_t i = 0; i < env->sz; i++)
         U_DEBUG("Env entry [%lu] [%s]\n", i, env->env[i]);
 }
 
+__attribute__((nonnull))
 char *get_env_value(env_t *env, char const *key)
 {
     for (size_t i = 0; i < env->sz; i++)
@@ -30,6 +32,18 @@ char *get_env_value(env_t *env, char const *key)
     return NULL;
 }
 
+__attribute__((nonnull))
+bool unset_env(env_t *env, char *key)
+{
+    for (size_t i = 0; i < env->sz; i++) {
+        if (u_strncmp(env->env[i], key, u_strlen(key)) == 0) {
+            env->env[i] = NULL;
+            return true;
+        }
+    }
+    return false;
+}
+
 static __attribute__((nonnull))
 bool ensure_env_capacity(env_t *env)
 {
diff --git a/src/env.h b/src/env.h
index cd8b7f3..5c59346 100644
--- a/src/env.h
+++ b/src/env.h
@@ -7,6 +7,7 @@
 
 #ifndef ENV_H
     #define ENV_H
+    #include <stdbool.h>
     #include <stddef.h>
     #define BASE_ENV_CAP 128
 
@@ -21,4 +22,5 @@ void debug_env_entries(env_t *env);
 
 env_t parse_env(char **env);
 char *get_env_value(env_t *env, char const *key);
+bool unset_env(env_t *env, char *key);
 #endif