env_utils.c File Reference

Environment utilities: handles SHLVL increment & PWD validation. More...

#include "env.h"
#include "libft.h"

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Detailed Description

Environment utilities: handles SHLVL increment & PWD validation.

Definition in file env_utils.c.

Functions
void	handle_shlvl (t_env **env_list)
	Increment the SHLVL environment variable. More...
void	ensure_pwd (t_env **env_list)
	Ensure PWD exists in the environment. More...
void	free_env_list (t_env **env_list)
	Free all nodes in the env linked list. More...
int	env_list_size (t_env *env_list)
	Count the number of nodes in the environment list. More...

Function Documentation

handle_shlvl()

void handle_shlvl

(

t_env **

env_list

)

Increment the SHLVL environment variable.

• Reads the current SHLVL, increments it by 1 and writes back
• If SHLVL doesn't exist, it initializes it to 1

Parameters

env_list

Pointer to list head pointer

Definition at line 24 of file env_utils.c.

References get_env_value(), and set_env_value().

Referenced by init_env().

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ensure_pwd()

void ensure_pwd

(

t_env **

env_list

)

Ensure PWD exists in the environment.

If it's not already set, it reads the current working directory via getcwd() and creates the variable

Parameters

env_list

Pointer to list head pointer

Definition at line 51 of file env_utils.c.

References get_env_value(), and set_env_value().

Referenced by init_env().

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free_env_list()

void free_env_list

(

t_env **

env_list

)

Free all nodes in the env linked list.

Parameters

env_list

Pointer to list head pointer

Definition at line 69 of file env_utils.c.

References t_env::key, t_env::next, and t_env::value.

Referenced by child_execute(), exec_child(), exec_left_pipe_child(), exec_right_pipe_child(), init_env(), and main().

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env_list_size()

int env_list_size

(

t_env *

env_list

)

Count the number of nodes in the environment list.

Parameters

env_list

List head

Returns

Number of nodes

Definition at line 91 of file env_utils.c.

References t_env::next.

Referenced by env_to_array().

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