sia_collect_trm(3)sia_collect_trm(3)NAMEsia_collect_trm - Parameter collection routine for SIA (Security Inte‐
gration Architecture)
SYNOPSIS
#include <sia.h> #include <siad.h>
int sia_collect_trm(
int timeout,
int rendition,
unsigned char *title,
int num_prompts,
prompt_t *prompts );
LIBRARY
Standard C library (libc.so and libc.a)
PARAMETERS
The timeout parameter is the number of seconds that the sia_col‐
lect_trm() routine waits. The rendition parameter is used to determine
the style of the presentation and is set to one of the following val‐
ues: Select one of the choices given. Select any of the choices given.
Fill out the form. One question with one answer. Information only.
ERROR or WARNING message. Pointer to a title string. A null pointer
indicates no title. The number of prompts in this collection. A
pointer to a prompt_t prompts structure.
DESCRIPTION
The sia_collect_trm() routine provides parameter collection capability.
The SIA session interfaces and change secure information interfaces use
a pre-defined parameter collection capability. The calling application
passes the address to a parameter collection routine through the SIA
middle layer to the siad_* routines. This collection routine allows
different security mechanisms to prompt the user for different parame‐
ters without having to be aware of the user interface details.
RETURN VALUES
The sia_collect_trm() routine returns either SIASUCCESS or SIAFAIL.
ERRORS
The errno value is not (normally) set explicitly by sia_* routines. The
errno values are those returned from the dynamic loader interface, from
dependent (siad_*) routines, or from malloc. Possible errors include
resource constraints (no memory) and various authentication failures.
EXAMPLES
The following examples are coded to work with any collection routine
callback, not just sia_collect_trm(); as such are not full standalone
modules.
The following example shows how the sia_collect_trm() routine can be
used to prompt for username and password (such as in login and xdm):
extern int (*collect)(); /* current SIA collection callback */ prompt_t
prompts[8]; /* space for prompts */ char name[16], pass‐
word[80]; /* where to store the data */
/* set up prompts for username & password, latter not echoed */
prompts[0].prompt = (unsigned char *) "login: "; prompts[0].result =
(unsigned char *) name; prompts[0].min_result_length = 1;
prompts[0].max_result_length = 8; prompts[0].control_flags = 0;
prompts[1].prompt= (unsigned char *) "Password:"; prompts[1].result =
(unsigned char *) password; prompts[1].min_result_length = 0;
prompts[1].max_result_length = MAX_PWD_LENGTH; prompts[1].control_flags
= SIARESINVIS; if((*collect)(0, SIAFORM, NULL, 2, &prompts) != SIACOL‐
SUCCESS)
return(SIADFAIL | SIADSTOP); /* could not collect name, password */
The following example shows how the sia_collect_trm() routine can
choose from a menu:
extern int (*collect)(); /* current SIA collection callback */ int
i; /* indexing */ int collecterror; /* status
*/ prompt_t prompts[3]; /* prompt control area */
memset(prompts, 0, sizeof prompts); prompts[0].prompt = (unsigned char
*) "a"; prompts[1].prompt = (unsigned char *) "b"; prompts[2].prompt =
(unsigned char *) "c"; collecterror = (*collect)(SIAONEMIN, SIAMENUONE,
"Pick one of the following:\n", 3, prompts); if (collecterror !=
SIACOLSUCCESS) { (void) fputs("Collection failed.\n", stderr);
return -1; } for (i = 0; i < 3; i++) { if
(prompts[i].result) { (void) printf("You picked %s.\n",
prompts[i].prompt); return 0; } } (void)
fputs("Collection return error.\n", stderr); return -1;
The following example shows how the sia_collect_trm() routine can put
out an information message:
extern int (*collect)(); /* current SIA collection callback */ prompt_t
prompts[1]; /* space for the output text control */
prompts[0].prompt = (unsigned char *) "Example text"; (void)(*col‐
lect)(0, SIAINFO, , 1, prompts); return 0;
FILES
/etc/sia/matrix.conf
SEE ALSOsia_ses_init(3), sia_chg_finger(3), matrix.conf(4)
Security
sia_collect_trm(3)
