1 files changed, 92 insertions, 0 deletions
diff --git a/lib/ss/list_rqs.c b/lib/ss/list_rqs.c
new file mode 100644
index 0000000..89e37bb
--- /dev/null
+++ b/lib/ss/list_rqs.c
@@ -0,0 +1,92 @@
+/*
+ * 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"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#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");
+    if (!output) {
+        perror("fdopen");
+        close(fd);
+        (void) signal(SIGINT, func);
+        return;
+    }
+    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);
+}