pam_putenv man page
pam_putenv — set or change PAM environment variable
#include <security/pam_appl.h> int pam_putenv(pam_handle_t *pamh, const char *name_value);
pam_putenv function is used to add or change the value of PAM environment variables as associated with the pamh handle.
The pamh argument is an authentication handle obtained by a prior call to pam_start(). The name_value argument is a single NUL terminated string of one of the following forms:
- NAME=value of variable
- In this case the environment variable of the given NAME is set to the indicated value: value of variable. If this variable is already known, it is overwritten. Otherwise it is added to the PAM environment.
- This function sets the variable to an empty value. It is listed separately to indicate that this is the correct way to achieve such a setting.
- Without an '=' the
pam_putenv() function will delete the corresponding variable from the PAM environment.
pam_putenv() operates on a copy of name_value, which means in contrast to putenv(3), the application is responsible to free the data.
- Argument name_value given is a NULL pointer.
- Variable requested (for deletion) is not currently set.
- The pamh handle is corrupt.
- Memory buffer error.
- The environment variable was successfully updated.
pam_start(3), pam_getenv(3), pam_getenvlist(3), pam_strerror(3), pam(8)
pam(3), pam_getenv(3), pam_getenvlist(3), pam_misc_paste_env(3), pam_misc_setenv(3).
Explore man page connections for pam_putenv(3).