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PAM_VPROMPT (3) | C library functions | Unix Manual Pages | :man

NAME

pam_vprompt - call the conversation function

CONTENTS

Library
Synopsis
Description
Return Values
See Also
Standards
Authors

LIBRARY


.Lb libpam

SYNOPSIS


.In sys/types.h
.In security/pam_appl.h "int" pam_vprompt "pam_handle_t *pamh" "int style" "char **resp" "const char *fmt" "va_list ap"

DESCRIPTION

The pam_vprompt function constructs a string from the fmt and ap arguments using vsnprintf(3), and passes it to the given PAM context’s conversation function.

The style argument specifies the type of interaction requested, and must be one of the following:

PAM_PROMPT_ECHO_OFF
Display the message and obtain the user’s response without displaying it.
PAM_PROMPT_ECHO_ON
Display the message and obtain the user’s response.
PAM_ERROR_MSG
Display the message as an error message, and do not wait for a response.
PAM_TEXT_INFO
Display the message as an informational message, and do not wait for a response.

A pointer to the response, or NULL if the conversation function did not return one, is stored in the location pointed to by the resp argument.

The message and response should not exceed PAM_MAX_MSG_SIZE or PAM_MAX_RESP_SIZE, respectively. If they do, they may be truncated.

RETURN VALUES

The pam_vprompt function returns one of the following values:
[PAM_BUF_ERR]
Memory buffer error.
[PAM_CONV_ERR]
Conversation failure.
[PAM_SYSTEM_ERR]
System error.

SEE ALSO

pam(3), pam_error(3), pam_info(3), pam_prompt(3), pam_strerror(3), pam_verror(3), pam_vinfo(3), vsnprintf(3)

STANDARDS

AUTHORS


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