1 /* 2 * Copyright 1987, 1988 by MIT Student Information Processing Board 3 * 4 * Permission to use, copy, modify, and distribute this software and 5 * its documentation for any purpose is hereby granted, provided that 6 * the names of M.I.T. and the M.I.T. S.I.P.B. not be used in 7 * advertising or publicity pertaining to distribution of the software 8 * without specific, written prior permission. M.I.T. and the 9 * M.I.T. S.I.P.B. make no representations about the suitability of 10 * this software for any purpose. It is provided "as is" without 11 * express or implied warranty. 12 */ 13 14 #ifdef HAS_STDLIB_H 15 #include <stdlib.h> 16 #endif 17 #include "ss_internal.h" 18 #define size sizeof(ss_data *) 19 #ifdef HAVE_DLOPEN 20 #include <dlfcn.h> 21 #endif 22 23 int ss_create_invocation(subsystem_name, version_string, info_ptr, 24 request_table_ptr, code_ptr) 25 const char *subsystem_name, *version_string; 26 void *info_ptr; 27 ss_request_table *request_table_ptr; 28 int *code_ptr; 29 { 30 register int sci_idx; 31 register ss_data *new_table; 32 register ss_data **table; 33 34 *code_ptr = 0; 35 table = _ss_table; 36 new_table = (ss_data *) malloc(sizeof(ss_data)); 37 38 if (table == (ss_data **) NULL) { 39 table = (ss_data **) malloc(2 * size); 40 table[0] = table[1] = (ss_data *)NULL; 41 } 42 initialize_ss_error_table (); 43 44 for (sci_idx = 1; table[sci_idx] != (ss_data *)NULL; sci_idx++) 45 ; 46 table = (ss_data **) realloc((char *)table, 47 ((unsigned)sci_idx+2)*size); 48 table[sci_idx+1] = (ss_data *) NULL; 49 table[sci_idx] = new_table; 50 51 new_table->subsystem_name = subsystem_name; 52 new_table->subsystem_version = version_string; 53 new_table->argv = (char **)NULL; 54 new_table->current_request = (char *)NULL; 55 new_table->info_dirs = (char **)malloc(sizeof(char *)); 56 *new_table->info_dirs = (char *)NULL; 57 new_table->info_ptr = info_ptr; 58 new_table->prompt = malloc((unsigned)strlen(subsystem_name)+4); 59 strcpy(new_table->prompt, subsystem_name); 60 strcat(new_table->prompt, ": "); 61 #ifdef silly 62 new_table->abbrev_info = ss_abbrev_initialize("/etc/passwd", code_ptr); 63 #else 64 new_table->abbrev_info = NULL; 65 #endif 66 new_table->flags.escape_disabled = 0; 67 new_table->flags.abbrevs_disabled = 0; 68 new_table->rqt_tables = 69 (ss_request_table **) calloc(2, sizeof(ss_request_table *)); 70 *(new_table->rqt_tables) = request_table_ptr; 71 *(new_table->rqt_tables+1) = (ss_request_table *) NULL; 72 73 new_table->readline_handle = 0; 74 new_table->readline_shutdown = 0; 75 new_table->readline = 0; 76 new_table->add_history = 0; 77 new_table->redisplay = 0; 78 new_table->rl_completion_matches = 0; 79 _ss_table = table; 80 #if defined(HAVE_DLOPEN) && defined(SHARED_ELF_LIB) 81 ss_get_readline(sci_idx); 82 #endif 83 return(sci_idx); 84 } 85 86 void 87 ss_delete_invocation(sci_idx) 88 int sci_idx; 89 { 90 register ss_data *t; 91 int ignored_code; 92 93 t = ss_info(sci_idx); 94 free(t->prompt); 95 free(t->rqt_tables); 96 while(t->info_dirs[0] != (char *)NULL) 97 ss_delete_info_dir(sci_idx, t->info_dirs[0], &ignored_code); 98 free(t->info_dirs); 99 #if defined(HAVE_DLOPEN) && defined(SHARED_ELF_LIB) 100 if (t->readline_shutdown) 101 (*t->readline_shutdown)(t); 102 #endif 103 free(t); 104 } 105
