env.h File Reference

Header for env.c. More...

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Data Structures
struct	process_environment_t

Macros
#define	process_environment_free(env)    FREE_AND_NULL(process_environment_t, process_environment_free_, (env))

Functions
char **	get_environment (void)
int	environment_variable_names_equal (const char *s1, const char *s2)
process_environment_t *	process_environment_make (struct smartlist_t *env_vars)
void	process_environment_free_ (process_environment_t *env)
struct smartlist_t *	get_current_process_environment_variables (void)
void	set_environment_variable_in_smartlist (struct smartlist_t *env_vars, const char *new_var, void(*free_old)(void *), int free_p)

Detailed Description

Header for env.c.

Definition in file env.h.

Function Documentation

environment_variable_names_equal()

int environment_variable_names_equal	(	const char *	s1,
		const char *	s2
	)

Return non-zero iff getenv would consider s1 and s2 to have the same name as strings in a process's environment.

Definition at line 70 of file env.c.

Referenced by set_environment_variable_in_smartlist().

get_current_process_environment_variables()

struct smartlist_t* get_current_process_environment_variables

(

void

)

Return a newly allocated smartlist containing every variable in this process's environment, as a NUL-terminated string of the form "NAME=VALUE". Note that on some/many/most/all OSes, the parent process can put strings not of that form in our environment; callers should try to not get crashed by that.

The returned strings are heap-allocated, and must be freed by the caller.

Definition at line 189 of file env.c.

Referenced by create_managed_proxy_environment().

get_environment()

char** get_environment

(

void

)

Return the current environment. This is a portable replacement for 'environ'.

Definition at line 42 of file env.c.

Referenced by get_current_process_environment_variables().

process_environment_free_()

void process_environment_free_

(

process_environment_t *

env

)

Free env (assuming it was produced by process_environment_make).

Definition at line 82 of file env.c.

process_environment_make()

process_environment_t* process_environment_make

(

struct smartlist_t *

env_vars

)

Make a process_environment_t containing the environment variables specified in env_vars (as C strings of the form "NAME=VALUE").

Definition at line 101 of file env.c.

Referenced by process_get_environment().

set_environment_variable_in_smartlist()

void set_environment_variable_in_smartlist	(	struct smartlist_t *	env_vars,
		const char *	new_var,
		void(*)(void *)	free_old,
		int	free_p
	)

For each string s in env_vars such that environment_variable_names_equal(s, new_var), remove it; if free_p is non-zero, call free_old(s). If new_var contains '=', insert it into env_vars.

Definition at line 206 of file env.c.