Function

GLibenviron_setenv

since: 2.32

Declaration [src] 

gchar**
g_environ_setenv (
  gchar** envp,
  const gchar* variable,
  const gchar* value,
  gboolean overwrite
)

Description [src]

Sets the environment variable variable in the provided list envp to value.

Available since: 2.32

Parameters

envp

Type: An array of filename

an environment list that can be freed using `g_strfreev()` (e.g., as
returned from g_get_environ()), or `NULL` for an empty
environment list.
The argument can be NULL.
The array must be NULL-terminated.
The called function takes ownership of the data, and is responsible for freeing it.
Each element is a platform-native string, using the preferred OS encoding on Unix and UTF-8 on Windows..
variable

Type: const gchar*

The environment variable to set, must not contain ‘=’.

The data is owned by the caller of the function.
The value is a platform-native string, using the preferred OS encoding on Unix and UTF-8 on Windows.
value

Type: const gchar*

The value for to set the variable to.

The data is owned by the caller of the function.
The value is a platform-native string, using the preferred OS encoding on Unix and UTF-8 on Windows.
overwrite

Type: gboolean

Whether to change the variable if it already exists.

Return value

Type: An array of filename

the updated environment list. Free it using g_strfreev().
The array is NULL-terminated.
The caller of the function takes ownership of the data, and is responsible for freeing it.
Each element is a platform-native string, using the preferred OS encoding on Unix and UTF-8 on Windows..