pam_prompt, pam_vprompt

#include <security/pam_ext.h>

int pam_prompt(pam_handle_t *pamh, int style, char **response, const char *fmt, ...);

int pam_vprompt(pam_handle_t *pamh, int style, char **response, const char *fmt, va_list args);

The pam_prompt function constructs a message from the specified format string and arguments and passes it to the conversation function as set by the service. Upon successful return, response is set to point to a string returned from the conversation function. This string is allocated on heap and should be freed.

PAM_BUF_ERR

PAM_CONV_ERR

PAM_SUCCESS

PAM_SYSTEM_ERR

pam(7), pam_conv(3)

The pam_prompt and pam_vprompt functions are Linux-PAM extensions.