progs/toe.c

   1 /****************************************************************************
   2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
   3  *                                                                          *
   4  * Permission is hereby granted, free of charge, to any person obtaining a  *
   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
   7  * without limitation the rights to use, copy, modify, merge, publish,      *
   8  * distribute, distribute with modifications, sublicense, and/or sell       *
   9  * copies of the Software, and to permit persons to whom the Software is    *
  10  * furnished to do so, subject to the following conditions:                 *
  11  *                                                                          *
  12  * The above copyright notice and this permission notice shall be included  *
  13  * in all copies or substantial portions of the Software.                   *
  14  *                                                                          *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
  21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
  22  *                                                                          *
  23  * Except as contained in this notice, the name(s) of the above copyright   *
  24  * holders shall not be used in advertising or otherwise to promote the     *
  25  * sale, use or other dealings in this Software without prior written       *
  26  * authorization.                                                           *
  27  ****************************************************************************/
  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  ****************************************************************************/
  33
  34 /*
  35  *      toe.c --- table of entries report generator
  36  *
  37  */
  38
  39 #include <progs.priv.h>
  40
  41 #include <sys/stat.h>
  42
  43 #include <dump_entry.h>
  44 #include <term_entry.h>
  45
  46 MODULE_ID("$Id: toe.c,v 0.19 1998/03/08 01:02:46 tom Exp $")
  47
  48 const char *_nc_progname;
  49
  50 static int typelist(int eargc, char *eargv[], bool,
  51                      void (*)(const char *, TERMTYPE *));
  52 static void deschook(const char *, TERMTYPE *);
  53
  54 #if NO_LEAKS
  55 #undef ExitProgram
  56 static void ExitProgram(int code) GCC_NORETURN;
  57 static void ExitProgram(int code)
  58 {
  59         _nc_free_entries(_nc_head);
  60         _nc_leaks_dump_entry();
  61         _nc_free_and_exit(code);
  62 }
  63 #endif
  64
  65 int main (int argc, char *argv[])
  66 {
  67     bool        direct_dependencies = FALSE;
  68     bool        invert_dependencies = FALSE;
  69     bool        header = FALSE;
  70     int         i, c, debug_level = 0;
  71     int         code;
  72
  73     if ((_nc_progname = strrchr(argv[0], '/')) == NULL)
  74         _nc_progname = argv[0];
  75     else
  76         _nc_progname++;
  77
  78     while ((c = getopt(argc, argv, "huv:UV")) != EOF)
  79         switch (c)
  80         {
  81         case 'h':
  82             header = TRUE;
  83             break;
  84         case 'u':
  85             direct_dependencies = TRUE;
  86             break;
  87         case 'v':
  88             debug_level = atoi(optarg);
  89             _nc_tracing = (1 << debug_level) - 1;
  90             break;
  91         case 'U':
  92             invert_dependencies = TRUE;
  93             break;
  94         case 'V':
  95             (void) fputs(NCURSES_VERSION, stdout);
  96             putchar('\n');
  97             ExitProgram(EXIT_SUCCESS);
  98         default:
  99             (void) fprintf (stderr, "usage: toe [-huUV] [-v n] [file...]\n");
 100             ExitProgram(EXIT_FAILURE);
 101         }
 102
 103     if (direct_dependencies || invert_dependencies)
 104     {
 105         if (freopen(argv[optind], "r", stdin) == NULL)
 106         {
 107             (void) fflush(stdout);
 108             fprintf(stderr, "%s: can't open %s\n", _nc_progname, argv[optind]);
 109             ExitProgram(EXIT_FAILURE);
 110         }
 111
 112         /* parse entries out of the source file */
 113         _nc_set_source(argv[optind]);
 114         _nc_read_entry_source(stdin, (char *)NULL,
 115                               FALSE, FALSE,
 116                               NULLHOOK);
 117     }
 118
 119     /* maybe we want a direct-dependency listing? */
 120     if (direct_dependencies)
 121     {
 122         ENTRY   *qp;
 123
 124         for_entry_list(qp)
 125             if (qp->nuses)
 126             {
 127                 int             j;
 128
 129                 (void) printf("%s:", _nc_first_name(qp->tterm.term_names));
 130                 for (j = 0; j < qp->nuses; j++)
 131                     (void) printf(" %s", (char *)(qp->uses[j].parent));
 132                 putchar('\n');
 133             }
 134
 135         ExitProgram(EXIT_SUCCESS);
 136     }
 137
 138     /* maybe we want a reverse-dependency listing? */
 139     if (invert_dependencies)
 140     {
 141         ENTRY   *qp, *rp;
 142         int             matchcount;
 143
 144         for_entry_list(qp)
 145         {
 146             matchcount = 0;
 147             for_entry_list(rp)
 148             {
 149                 if (rp->nuses == 0)
 150                     continue;
 151
 152                 for (i = 0; i < rp->nuses; i++)
 153                     if (_nc_name_match(qp->tterm.term_names,(char*)rp->uses[i].parent, "|"))
 154                     {
 155                         if (matchcount++ == 0)
 156                             (void) printf("%s:",
 157                                           _nc_first_name(qp->tterm.term_names));
 158                         (void) printf(" %s",
 159                                       _nc_first_name(rp->tterm.term_names));
 160                     }
 161             }
 162             if (matchcount)
 163                 putchar('\n');
 164         }
 165
 166         ExitProgram(EXIT_SUCCESS);
 167     }
 168
 169     /*
 170      * If we get this far, user wants a simple terminal type listing.
 171      */
 172     if (optind < argc) {
 173         code = typelist(argc-optind, argv+optind, header, deschook);
 174     } else {
 175         char    *by_env, *home, *eargv[3];
 176         int     j;
 177
 178         j = 0;
 179         if ((by_env = getenv("TERMINFO")) != (char *)NULL)
 180             eargv[j++] = by_env;
 181         else
 182         {
 183             if ((home = getenv("HOME")) != (char *)NULL)
 184             {
 185                 char    personal[PATH_MAX];
 186                 struct  stat sb;
 187
 188                 (void) sprintf(personal, PRIVATE_INFO, home);
 189                 if (stat(personal, &sb) == 0
 190                  && (sb.st_mode & S_IFMT) == S_IFDIR)
 191                     eargv[j++] = personal;
 192             }
 193             eargv[j++] = TERMINFO;
 194         }
 195         eargv[j] = (char *)NULL;
 196
 197         code = typelist(j, eargv, header, deschook);
 198     }
 199
 200     ExitProgram(code);
 201 }
 202
 203 static void deschook(const char *cn, TERMTYPE *tp)
 204 /* display a description for the type */
 205 {
 206     const char *desc;
 207
 208     if ((desc = strrchr(tp->term_names, '|')) == (char *)NULL)
 209         desc = "(No description)";
 210     else
 211         ++desc;
 212
 213     (void) printf("%-10s\t%s\n", cn, desc);
 214 }
 215
 216 static int typelist(int eargc, char *eargv[],
 217                      bool verbosity,
 218                      void  (*hook)(const char *, TERMTYPE *tp))
 219 /* apply a function to each entry in given terminfo directories */
 220 {
 221     int i;
 222
 223     for (i = 0; i < eargc; i++)
 224     {
 225         DIR     *termdir;
 226         struct dirent *subdir;
 227
 228         if ((termdir = opendir(eargv[i])) == (DIR *)NULL)
 229         {
 230             (void) fflush(stdout);
 231             (void) fprintf(stderr,
 232                            "%s: can't open terminfo directory %s\n",
 233                            _nc_progname, eargv[i]);
 234             return(EXIT_FAILURE);
 235         }
 236         else if (verbosity)
 237             (void) printf("#\n#%s:\n#\n", eargv[i]);
 238
 239         while ((subdir = readdir(termdir)) != NULL)
 240         {
 241             size_t      len = NAMLEN(subdir);
 242             char        buf[PATH_MAX];
 243             char        name_1[PATH_MAX];
 244             DIR *entrydir;
 245             struct dirent *entry;
 246
 247             strncpy(name_1, subdir->d_name, len)[len] = '\0';
 248             if (!strcmp(name_1, ".")
 249                 || !strcmp(name_1, ".."))
 250                 continue;
 251
 252             (void) strcpy(buf, eargv[i]);
 253             (void) strcat(buf, "/");
 254             (void) strcat(buf, name_1);
 255             (void) strcat(buf, "/");
 256             chdir(buf);
 257             entrydir = opendir(".");
 258             while ((entry = readdir(entrydir)) != NULL)
 259             {
 260                 char            name_2[PATH_MAX];
 261                 TERMTYPE        lterm;
 262                 char            *cn;
 263                 int             status;
 264
 265                 len = NAMLEN(entry);
 266                 strncpy(name_2, entry->d_name, len)[len] = '\0';
 267                 if (!strcmp(name_2, ".")
 268                     || !strcmp(name_2, ".."))
 269                     continue;
 270
 271                 status = _nc_read_file_entry(name_2, &lterm);
 272                 if (status <= 0)
 273                 {
 274                     (void) fflush(stdout);
 275                     (void) fprintf(stderr,
 276                                    "toe: couldn't open terminfo file %s.\n",
 277                                    name_2);
 278                     return(EXIT_FAILURE);
 279                 }
 280
 281                 /* only visit things once, by primary name */
 282                 cn = _nc_first_name(lterm.term_names);
 283                 if (!strcmp(cn, name_2))
 284                 {
 285                     /* apply the selected hook function */
 286                     (*hook)(cn, &lterm);
 287                 }
 288                 if (lterm.term_names) {
 289                     free(lterm.term_names);
 290                     lterm.term_names = NULL;
 291                 }
 292                 if (lterm.str_table) {
 293                     free(lterm.str_table);
 294                     lterm.str_table = NULL;
 295                 }
 296             }
 297             closedir(entrydir);
 298         }
 299         closedir(termdir);
 300     }
 301
 302     return(EXIT_SUCCESS);
 303 }