progs/toe.c

   1
   2 /***************************************************************************
   3 *                            COPYRIGHT NOTICE                              *
   4 ****************************************************************************
   5 *                ncurses is copyright (C) 1992-1995                        *
   6 *                          Zeyd M. Ben-Halim                               *
   7 *                          zmbenhal@netcom.com                             *
   8 *                          Eric S. Raymond                                 *
   9 *                          esr@snark.thyrsus.com                           *
  10 *                                                                          *
  11 *        Permission is hereby granted to reproduce and distribute ncurses  *
  12 *        by any means and for any fee, whether alone or as part of a       *
  13 *        larger distribution, in source or in binary form, PROVIDED        *
  14 *        this notice is included with any such distribution, and is not    *
  15 *        removed from any of its header files. Mention of ncurses in any   *
  16 *        applications linked with it is highly appreciated.                *
  17 *                                                                          *
  18 *        ncurses comes AS IS with no warranty, implied or expressed.       *
  19 *                                                                          *
  20 ***************************************************************************/
  21
  22 /*
  23  *      toe.c --- table of entries report generator
  24  *
  25  */
  26
  27 #include <progs.priv.h>
  28
  29 #include <dump_entry.h>
  30 #include <term_entry.h>
  31
  32 MODULE_ID("$Id: toe.c,v 0.15 1997/02/15 18:54:47 tom Exp $")
  33
  34 const char *_nc_progname;
  35
  36 static int typelist(int eargc, char *eargv[], bool,
  37                      void (*)(const char *, TERMTYPE *));
  38 static void deschook(const char *, TERMTYPE *);
  39
  40 #if NO_LEAKS
  41 #undef ExitProgram
  42 static void ExitProgram(int code) GCC_NORETURN;
  43 static void ExitProgram(int code)
  44 {
  45         _nc_free_entries(_nc_head);
  46         _nc_leaks_dump_entry();
  47         _nc_free_and_exit(code);
  48 }
  49 #endif
  50
  51 int main (int argc, char *argv[])
  52 {
  53     bool        direct_dependencies = FALSE;
  54     bool        invert_dependencies = FALSE;
  55     bool        header = FALSE;
  56     int         i, c, debug_level = 0;
  57     int         code;
  58
  59     if ((_nc_progname = strrchr(argv[0], '/')) == NULL)
  60         _nc_progname = argv[0];
  61     else
  62         _nc_progname++;
  63
  64     while ((c = getopt(argc, argv, "huv:UV")) != EOF)
  65         switch (c)
  66         {
  67         case 'h':
  68             header = TRUE;
  69             break;
  70         case 'u':
  71             direct_dependencies = TRUE;
  72             break;
  73         case 'v':
  74             debug_level = atoi(optarg);
  75             _nc_tracing = (1 << debug_level) - 1;
  76             break;
  77         case 'U':
  78             invert_dependencies = TRUE;
  79             break;
  80         case 'V':
  81             (void) fputs(NCURSES_VERSION, stdout);
  82             putchar('\n');
  83             ExitProgram(EXIT_SUCCESS);
  84         default:
  85             (void) fprintf (stderr, "usage: toe [-huUV] [-v n] [file...]\n");
  86             ExitProgram(EXIT_FAILURE);
  87         }
  88
  89     if (direct_dependencies || invert_dependencies)
  90     {
  91         if (freopen(argv[optind], "r", stdin) == NULL)
  92         {
  93             fprintf(stderr, "%s: can't open %s\n", _nc_progname, argv[optind]);
  94             ExitProgram(EXIT_FAILURE);
  95         }
  96
  97         /* parse entries out of the source file */
  98         _nc_set_source(argv[optind]);
  99         _nc_read_entry_source(stdin, (char *)NULL,
 100                               FALSE, FALSE,
 101                               NULLHOOK);
 102     }
 103
 104     /* maybe we want a direct-dependency listing? */
 105     if (direct_dependencies)
 106     {
 107         ENTRY   *qp;
 108
 109         for_entry_list(qp)
 110             if (qp->nuses)
 111             {
 112                 int             j;
 113
 114                 (void) printf("%s:", _nc_first_name(qp->tterm.term_names));
 115                 for (j = 0; j < qp->nuses; j++)
 116                     (void) printf(" %s", (char *)(qp->uses[j].parent));
 117                 putchar('\n');
 118             }
 119
 120         ExitProgram(EXIT_SUCCESS);
 121     }
 122
 123     /* maybe we want a reverse-dependency listing? */
 124     if (invert_dependencies)
 125     {
 126         ENTRY   *qp, *rp;
 127         int             matchcount;
 128
 129         for_entry_list(qp)
 130         {
 131             matchcount = 0;
 132             for_entry_list(rp)
 133             {
 134                 if (rp->nuses == 0)
 135                     continue;
 136
 137                 for (i = 0; i < rp->nuses; i++)
 138                     if (_nc_name_match(qp->tterm.term_names,(char*)rp->uses[i].parent, "|"))
 139                     {
 140                         if (matchcount++ == 0)
 141                             (void) printf("%s:",
 142                                           _nc_first_name(qp->tterm.term_names));
 143                         (void) printf(" %s",
 144                                       _nc_first_name(rp->tterm.term_names));
 145                     }
 146             }
 147             if (matchcount)
 148                 putchar('\n');
 149         }
 150
 151         ExitProgram(EXIT_SUCCESS);
 152     }
 153
 154     /*
 155      * If we get this far, user wants a simple terminal type listing.
 156      */
 157     if (optind < argc) {
 158         code = typelist(argc-optind, argv+optind, header, deschook);
 159     } else {
 160         char    *explicit, *home, *eargv[3];
 161         int     j;
 162
 163         j = 0;
 164         if ((explicit = getenv("TERMINFO")) != (char *)NULL)
 165             eargv[j++] = explicit;
 166         else
 167         {
 168             if ((home = getenv("HOME")) != (char *)NULL)
 169             {
 170                 char    personal[PATH_MAX];
 171
 172                 (void) sprintf(personal, PRIVATE_INFO, home);
 173                 if (access(personal, F_OK) == 0)
 174                     eargv[j++] = personal;
 175             }
 176             eargv[j++] = TERMINFO;
 177         }
 178         eargv[j] = (char *)NULL;
 179
 180         code = typelist(j, eargv, header, deschook);
 181     }
 182
 183     ExitProgram(code);
 184 }
 185
 186 static void deschook(const char *cn, TERMTYPE *tp)
 187 /* display a description for the type */
 188 {
 189     const char *desc;
 190
 191     if ((desc = strrchr(tp->term_names, '|')) == (char *)NULL)
 192         desc = "(No description)";
 193     else
 194         ++desc;
 195
 196     (void) printf("%-10s\t%s\n", cn, desc);
 197 }
 198
 199 static int typelist(int eargc, char *eargv[],
 200                      bool verbosity,
 201                      void  (*hook)(const char *, TERMTYPE *tp))
 202 /* apply a function to each entry in given terminfo directories */
 203 {
 204     int i;
 205
 206     for (i = 0; i < eargc; i++)
 207     {
 208         DIR     *termdir;
 209         struct dirent *subdir;
 210
 211         if ((termdir = opendir(eargv[i])) == (DIR *)NULL)
 212         {
 213             (void) fprintf(stderr,
 214                            "%s: can't open terminfo directory %s\n",
 215                            _nc_progname, eargv[i]);
 216             return(EXIT_FAILURE);
 217         }
 218         else if (verbosity)
 219             (void) printf("#\n#%s:\n#\n", eargv[i]);
 220
 221         while ((subdir = readdir(termdir)) != NULL)
 222         {
 223             size_t      len = NAMLEN(subdir);
 224             char        buf[PATH_MAX];
 225             char        name_1[PATH_MAX];
 226             DIR *entrydir;
 227             struct dirent *entry;
 228
 229             strncpy(name_1, subdir->d_name, len)[len] = '\0';
 230             if (!strcmp(name_1, ".")
 231                 || !strcmp(name_1, ".."))
 232                 continue;
 233
 234             (void) strcpy(buf, eargv[i]);
 235             (void) strcat(buf, "/");
 236             (void) strcat(buf, name_1);
 237             (void) strcat(buf, "/");
 238             chdir(buf);
 239             entrydir = opendir(".");
 240             while ((entry = readdir(entrydir)) != NULL)
 241             {
 242                 char            name_2[PATH_MAX];
 243                 TERMTYPE        lterm;
 244                 char            *cn;
 245                 int             status;
 246
 247                 len = NAMLEN(entry);
 248                 strncpy(name_2, entry->d_name, len)[len] = '\0';
 249                 if (!strcmp(name_2, ".")
 250                     || !strcmp(name_2, ".."))
 251                     continue;
 252
 253                 status = _nc_read_file_entry(name_2, &lterm);
 254                 if (status <= 0)
 255                 {
 256                     (void) fprintf(stderr,
 257                                    "toe: couldn't open terminfo file %s.\n",
 258                                    name_2);
 259                     return(EXIT_FAILURE);
 260                 }
 261
 262                 /* only visit things once, by primary name */
 263                 cn = _nc_first_name(lterm.term_names);
 264                 if (!strcmp(cn, name_2))
 265                 {
 266                     /* apply the selected hook function */
 267                     (*hook)(cn, &lterm);
 268                 }
 269                 if (lterm.term_names) {
 270                     free(lterm.term_names);
 271                     lterm.term_names = NULL;
 272                 }
 273                 if (lterm.str_table) {
 274                     free(lterm.str_table);
 275                     lterm.str_table = NULL;
 276                 }
 277             }
 278             closedir(entrydir);
 279         }
 280         closedir(termdir);
 281     }
 282
 283     return(EXIT_SUCCESS);
 284 }