84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
/*
|
|
* Copyright 1987, 1988 by MIT Student Information Processing Board
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and
|
|
* its documentation for any purpose is hereby granted, provided that
|
|
* the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
|
|
* advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. M.I.T. and the
|
|
* M.I.T. S.I.P.B. make no representations about the suitability of
|
|
* this software for any purpose. It is provided "as is" without
|
|
* express or implied warranty.
|
|
*/
|
|
#include "config.h"
|
|
#include "ss_internal.h"
|
|
#include <signal.h>
|
|
#include <setjmp.h>
|
|
#include <sys/wait.h>
|
|
|
|
typedef void sigret_t;
|
|
|
|
void ss_list_requests(int argc __SS_ATTR((unused)),
|
|
const char * const *argv __SS_ATTR((unused)),
|
|
int sci_idx, void *infop __SS_ATTR((unused)))
|
|
{
|
|
ss_request_entry *entry;
|
|
char const * const *name;
|
|
int i, spacing;
|
|
ss_request_table **table;
|
|
|
|
FILE *output;
|
|
int fd;
|
|
sigset_t omask, igmask;
|
|
sigret_t (*func)(int);
|
|
#ifndef NO_FORK
|
|
int waitb;
|
|
#endif
|
|
|
|
sigemptyset(&igmask);
|
|
sigaddset(&igmask, SIGINT);
|
|
sigprocmask(SIG_BLOCK, &igmask, &omask);
|
|
func = signal(SIGINT, SIG_IGN);
|
|
fd = ss_pager_create();
|
|
if (fd < 0) {
|
|
perror("ss_pager_create");
|
|
(void) signal(SIGINT, func);
|
|
return;
|
|
}
|
|
output = fdopen(fd, "w");
|
|
sigprocmask(SIG_SETMASK, &omask, (sigset_t *) 0);
|
|
|
|
fprintf (output, "Available %s requests:\n\n",
|
|
ss_info (sci_idx) -> subsystem_name);
|
|
|
|
for (table = ss_info(sci_idx)->rqt_tables; *table; table++) {
|
|
entry = (*table)->requests;
|
|
for (; entry->command_names; entry++) {
|
|
spacing = -2;
|
|
if (entry->flags & SS_OPT_DONT_LIST)
|
|
continue;
|
|
for (name = entry->command_names; *name; name++) {
|
|
int len = strlen(*name);
|
|
fputs(*name, output);
|
|
spacing += len + 2;
|
|
if (name[1]) {
|
|
fputs(", ", output);
|
|
}
|
|
}
|
|
if (spacing > 23) {
|
|
fputc('\n', output);
|
|
spacing = 0;
|
|
}
|
|
for (i = 0; i < 25 - spacing; i++)
|
|
fputc(' ', output);
|
|
fputs(entry->info_string, output);
|
|
fputc('\n', output);
|
|
}
|
|
}
|
|
fclose(output);
|
|
#ifndef NO_FORK
|
|
wait(&waitb);
|
|
#endif
|
|
(void) signal(SIGINT, func);
|
|
}
|