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pam_strerror(3) [linux man page]

PAM_STRERROR(3) 						 Linux-PAM Manual						   PAM_STRERROR(3)

NAME
pam_strerror - return string describing PAM error code SYNOPSIS
#include <security/pam_appl.h> const char *pam_strerror(pam_handle_t *pamh, int errnum); DESCRIPTION
The pam_strerror function returns a pointer to a string describing the error code passed in the argument errnum, possibly using the LC_MESSAGES part of the current locale to select the appropriate language. This string must not be modified by the application. No library function will modify this string. RETURN VALUES
This function returns always a pointer to a string. SEE ALSO
pam(7) Linux-PAM Manual 06/04/2011 PAM_STRERROR(3)

Check Out this Related Man Page

PAM_PUTENV(3)                                                    Linux-PAM Manual                                                    PAM_PUTENV(3)

NAME
pam_putenv - set or change PAM environment variable SYNOPSIS
#include <security/pam_appl.h> int pam_putenv(pam_handle_t *pamh, const char *name_value); DESCRIPTION
The 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. NAME= 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. NAME 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. RETURN VALUES
PAM_PERM_DENIED Argument name_value given is a NULL pointer. PAM_BAD_ITEM Variable requested (for deletion) is not currently set. PAM_ABORT The pamh handle is corrupt. PAM_BUF_ERR Memory buffer error. PAM_SUCCESS The environment variable was successfully updated. SEE ALSO
pam_start(3), pam_getenv(3), pam_getenvlist(3), pam_strerror(3), pam(7) Linux-PAM Manual 06/04/2011 PAM_PUTENV(3)

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