/* $OpenBSD: list_rqs.c,v 1.1 1996/11/15 09:25:29 downsj Exp $ */ /*- * Copyright 1987, 1988 by the Student Information Processing Board * of the Massachusetts Institute of Technology * * Permission to use, copy, modify, and distribute this software * and its documentation for any purpose and without fee is * hereby granted, provided that the above copyright notice * appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, * and 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 "ss_internal.h" #include <signal.h> #include <setjmp.h> #include <sys/types.h> #include <sys/wait.h> #ifdef lint /* "lint returns a value which is sometimes ignored" */ #define DONT_USE(x) x=x; #else /* !lint */ #define DONT_USE(x) ; #endif /* lint */ static char const twentyfive_spaces[26] = " "; static char const NL[2] = "\n"; void ss_list_requests(argc, argv, sci_idx, info_ptr) int argc; const char * const *argv; int sci_idx; pointer info_ptr; { register ss_request_entry *entry; register char const * const *name; register int spacing; register ss_request_table **table; char buffer[BUFSIZ]; FILE *output; int fd; #ifndef NPOSIX struct sigaction nsig, osig; sigset_t nmask, omask; int waitb; #else int (*func)(); int mask; union wait waitb; #endif DONT_USE(argc); DONT_USE(argv); #ifndef NPOSIX sigemptyset(&nmask); sigaddset(&nmask, SIGINT); sigprocmask(SIG_BLOCK, &nmask, &omask); nsig.sa_handler = SIG_IGN; sigemptyset(&nsig.sa_mask); nsig.sa_flags = 0; sigaction(SIGINT, &nsig, &osig); #else mask = sigblock(sigmask(SIGINT)); func = signal(SIGINT, SIG_IGN); #endif fd = ss_pager_create(); output = fdopen(fd, "w"); #ifndef NPOSIX sigprocmask(SIG_SETMASK, &omask, (sigset_t *)0); #else sigsetmask(mask); #endif 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; buffer[0] = '\0'; if (entry->flags & SS_OPT_DONT_LIST) continue; for (name = entry->command_names; *name; name++) { register int len = strlen(*name); strncat(buffer, *name, len); spacing += len + 2; if (name[1]) { strcat(buffer, ", "); } } if (spacing > 23) { strcat(buffer, NL); fputs(buffer, output); spacing = 0; buffer[0] = '\0'; } strncat(buffer, twentyfive_spaces, 25-spacing); strcat(buffer, entry->info_string); strcat(buffer, NL); fputs(buffer, output); } } fclose(output); #ifndef NO_FORK wait(&waitb); #endif #ifndef NPOSIX sigaction(SIGINT, &osig, (struct sigaction *)0); #else (void) signal(SIGINT, func); #endif }