mirror of https://github.com/vitalif/e2fsprogs
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/*
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* Copyright 1987, 1988 by MIT Student Information Processing Board
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*
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* For copyright information, see copyright.h.
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*/
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#include "copyright.h"
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#include "ss_internal.h"
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#include <signal.h>
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#include <setjmp.h>
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#include <sys/wait.h>
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typedef void sigret_t;
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#ifdef lint /* "lint returns a value which is sometimes ignored" */
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#define DONT_USE(x) x=x;
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#else /* !lint */
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#define DONT_USE(x) ;
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#endif /* lint */
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static char const twentyfive_spaces[26] =
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" ";
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static char const NL[2] = "\n";
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void ss_list_requests(argc, argv, sci_idx, info_ptr)
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int argc;
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char **argv;
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int sci_idx;
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pointer info_ptr;
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{
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register ss_request_entry *entry;
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register char const * const *name;
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register int spacing;
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register ss_request_table **table;
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char buffer[BUFSIZ];
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FILE *output;
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int fd;
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#ifdef POSIX_SIGNALS
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sigset_t omask, igmask;
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#else
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int mask;
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#endif
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sigret_t (*func)();
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#ifndef NO_FORK
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int waitb;
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#endif
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DONT_USE(argc);
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DONT_USE(argv);
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#ifdef POSIX_SIGNALS
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sigemptyset(&igmask);
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sigaddset(&igmask, SIGINT);
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sigprocmask(SIG_BLOCK, &igmask, &omask);
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#else
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mask = sigblock(sigmask(SIGINT));
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#endif
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func = signal(SIGINT, SIG_IGN);
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fd = ss_pager_create();
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output = fdopen(fd, "w");
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#ifdef POSIX_SIGNALS
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sigprocmask(SIG_SETMASK, &omask, (sigset_t *) 0);
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#else
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sigsetmask(mask);
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#endif
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fprintf (output, "Available %s requests:\n\n",
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ss_info (sci_idx) -> subsystem_name);
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for (table = ss_info(sci_idx)->rqt_tables; *table; table++) {
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entry = (*table)->requests;
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for (; entry->command_names; entry++) {
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spacing = -2;
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buffer[0] = '\0';
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if (entry->flags & SS_OPT_DONT_LIST)
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continue;
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for (name = entry->command_names; *name; name++) {
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register int len = strlen(*name);
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strncat(buffer, *name, len);
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spacing += len + 2;
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if (name[1]) {
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strcat(buffer, ", ");
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}
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}
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if (spacing > 23) {
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strcat(buffer, NL);
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fputs(buffer, output);
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spacing = 0;
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buffer[0] = '\0';
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}
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strncat(buffer, twentyfive_spaces, 25-spacing);
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strcat(buffer, entry->info_string);
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strcat(buffer, NL);
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fputs(buffer, output);
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}
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}
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fclose(output);
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#ifndef NO_FORK
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wait(&waitb);
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#endif
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(void) signal(SIGINT, func);
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}
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