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pam_end(3) [debian man page]

PAM_END(3)							 Linux-PAM Manual							PAM_END(3)

NAME
pam_end - termination of PAM transaction SYNOPSIS
#include <security/pam_appl.h> int pam_end(pam_handle_t *pamh, int pam_status); DESCRIPTION
The pam_end function terminates the PAM transaction and is the last function an application should call in the PAM context. Upon return the handle pamh is no longer valid and all memory associated with it will be invalid. The pam_status argument should be set to the value returned to the application by the last PAM library call. The value taken by pam_status is used as an argument to the module specific callback function, cleanup() (See pam_set_data(3) and pam_get_data(3)). In this way the module can be given notification of the pass/fail nature of the tear-down process, and perform any last minute tasks that are appropriate to the module before it is unlinked. This argument can be logically OR'd with PAM_DATA_SILENT to indicate to indicate that the module should not treat the call too seriously. It is generally used to indicate that the current closing of the library is in a fork(2)ed process, and that the parent will take care of cleaning up things that exist outside of the current process space (files etc.). This function free's all memory for items associated with the pam_set_item(3) and pam_get_item(3) functions. Pointers associated with such objects are not valid anymore after pam_end was called. RETURN VALUES
PAM_SUCCESS Transaction was successful terminated. PAM_SYSTEM_ERR System error, for example a NULL pointer was submitted as PAM handle or the function was called by a module. SEE ALSO
pam_get_data(3), pam_set_data(3), pam_start(3), pam_strerror(3) Linux-PAM Manual 06/04/2011 PAM_END(3)

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PAM_START(3)						  Application Programmers' Manual					      PAM_START(3)

NAME
pam_start, pam_end - activating Linux-PAM SYNOPSIS
#include <security/pam_appl.h> int pam_start(const char *service, const char *user, const struct pam_conv *conv, pam_handle_t **pamh_p); int pam_end(pam_handle_t *pamh, int pam_status); DESCRIPTION
pam_start Initialize the Linux-PAM library. Identifying the application with a particular service name. The username can take the value NULL, if not known at the time the interface is initialized. The conversation structure is passed to the library via the conv argu- ment. (For a complete description of this and other structures the reader is directed to the more verbose Linux-PAM application developers' guide). Upon successful initialization, an opaque pointer-handle for future access to the library is returned through the contents of the pamh_p pointer. pam_end Terminate the Linux-PAM library. The service application associated with the pamh handle, is terminated. The argument, pam_status, passes the value most recently returned to the application from the library; it indicates the manner in which the library should be shutdown. Besides carrying a return value, this argument may be logically OR'd with PAM_DATA_SILENT to indicate that the module should not treat the call too seriously. It is generally used to indicate that the current closing of the library is in a fork(2)ed process, and that the parent will take care of cleaning up things that exist outside of the current process space (files etc.). RETURN VALUE
pam_start pam_end On success, PAM_SUCCESS is returned ERRORS
May be translated to text with pam_strerror(3). CONFORMING TO
DCE-RFC 86.0, October 1995. Note, the PAM_DATA_SILENT flag is pending acceptance with the DCE (as of 1996/12/4). BUGS
None known. SEE ALSO
fork(2), pam_authenticate(3), pam_acct_mgmt(3), pam_open_session(3), and pam_chauthtok(3). Also, see the three Linux-PAM Guides, for System administrators, module developers, and application developers. Linux-PAM 0.56 1997 Feb 15 PAM_START(3)

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