1 files changed, 132 insertions, 0 deletions
diff --git a/lib/ss/invocation.c b/lib/ss/invocation.c
new file mode 100644
index 0000000..7d7458a
--- /dev/null
+++ b/lib/ss/invocation.c
@@ -0,0 +1,132 @@
+/*
+ * 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"
+#ifdef HAS_STDLIB_H
+#include <stdlib.h>
+#endif
+#include "ss_internal.h"
+#define	size	sizeof(ss_data *)
+#ifdef HAVE_DLOPEN
+#include <dlfcn.h>
+#endif
+#include <errno.h>
+
+int ss_create_invocation(const char *subsystem_name, const char *version_string,
+			 void *info_ptr, ss_request_table *request_table_ptr,
+			 int *code_ptr)
+{
+	int sci_idx;
+	ss_data *new_table = NULL;
+	ss_data **table = NULL;
+	ss_data **realloc_table = NULL;
+
+	*code_ptr = 0;
+	table = _ss_table;
+	new_table = (ss_data *) malloc(sizeof(ss_data));
+	if (!new_table)
+		goto out;
+	memset(new_table, 0, sizeof(ss_data));
+
+	if (table == (ss_data **) NULL) {
+		table = (ss_data **) malloc(2 * size);
+		if (!table)
+			goto out;
+		table[0] = table[1] = (ss_data *)NULL;
+	}
+	initialize_ss_error_table ();
+
+	for (sci_idx = 1; table[sci_idx] != (ss_data *)NULL; sci_idx++)
+		;
+	realloc_table = (ss_data **) realloc((char *)table,
+				     ((unsigned)sci_idx+2)*size);
+	if (realloc_table == NULL)
+		goto out;
+
+	table = realloc_table;
+	table[sci_idx+1] = (ss_data *) NULL;
+	table[sci_idx] = new_table;
+
+	new_table->subsystem_name = subsystem_name;
+	new_table->subsystem_version = version_string;
+	new_table->argv = (char **)NULL;
+	new_table->current_request = (char *)NULL;
+	new_table->info_dirs = (char **)malloc(sizeof(char *));
+	if (!new_table->info_dirs)
+		goto out;
+
+	*new_table->info_dirs = (char *)NULL;
+	new_table->info_ptr = info_ptr;
+	new_table->prompt = malloc((unsigned)strlen(subsystem_name)+4);
+	if (!new_table->prompt)
+		goto out;
+
+	strcpy(new_table->prompt, subsystem_name);
+	strcat(new_table->prompt, ":  ");
+#ifdef silly
+	new_table->abbrev_info = ss_abbrev_initialize("/etc/passwd", code_ptr);
+#else
+	new_table->abbrev_info = NULL;
+#endif
+	new_table->flags.escape_disabled = 0;
+	new_table->flags.abbrevs_disabled = 0;
+	new_table->rqt_tables =
+		(ss_request_table **) calloc(2, sizeof(ss_request_table *));
+	if (!new_table->rqt_tables)
+		goto out;
+
+	*(new_table->rqt_tables) = request_table_ptr;
+	*(new_table->rqt_tables+1) = (ss_request_table *) NULL;
+
+	new_table->readline_handle = 0;
+	new_table->readline_shutdown = 0;
+	new_table->readline = 0;
+	new_table->add_history = 0;
+	new_table->redisplay = 0;
+	new_table->rl_completion_matches = 0;
+	_ss_table = table;
+#if defined(HAVE_DLOPEN) && defined(SHARED_ELF_LIB)
+	ss_get_readline(sci_idx);
+#endif
+	return(sci_idx);
+
+out:
+	if (new_table) {
+		free(new_table->prompt);
+		free(new_table->info_dirs);
+	}
+	free(new_table);
+	free(table);
+	*code_ptr = ENOMEM;
+	return 0;
+
+}
+
+void
+ss_delete_invocation(int sci_idx)
+{
+	register ss_data *t;
+	int ignored_code;
+
+	t = ss_info(sci_idx);
+	free(t->prompt);
+	free(t->rqt_tables);
+	while(t->info_dirs[0] != (char *)NULL)
+		ss_delete_info_dir(sci_idx, t->info_dirs[0], &ignored_code);
+	free(t->info_dirs);
+#if defined(HAVE_DLOPEN) && defined(SHARED_ELF_LIB)
+	if (t->readline_shutdown)
+		(*t->readline_shutdown)(t);
+#endif
+	free(t);
+}