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 <dump_entry.h>
  42 #include <term_entry.h>
  43
  44 MODULE_ID("$Id: toe.c,v 0.18 1998/02/11 12:14:02 tom Exp $")
  45
  46 const char *_nc_progname;
  47
  48 static int typelist(int eargc, char *eargv[], bool,
  49                      void (*)(const char *, TERMTYPE *));
  50 static void deschook(const char *, TERMTYPE *);
  51
  52 #if NO_LEAKS
  53 #undef ExitProgram
  54 static void ExitProgram(int code) GCC_NORETURN;
  55 static void ExitProgram(int code)
  56 {
  57         _nc_free_entries(_nc_head);
  58         _nc_leaks_dump_entry();
  59         _nc_free_and_exit(code);
  60 }
  61 #endif
  62
  63 int main (int argc, char *argv[])
  64 {
  65     bool        direct_dependencies = FALSE;
  66     bool        invert_dependencies = FALSE;
  67     bool        header = FALSE;
  68     int         i, c, debug_level = 0;
  69     int         code;
  70
  71     if ((_nc_progname = strrchr(argv[0], '/')) == NULL)
  72         _nc_progname = argv[0];
  73     else
  74         _nc_progname++;
  75
  76     while ((c = getopt(argc, argv, "huv:UV")) != EOF)
  77         switch (c)
  78         {
  79         case 'h':
  80             header = TRUE;
  81             break;
  82         case 'u':
  83             direct_dependencies = TRUE;
  84             break;
  85         case 'v':
  86             debug_level = atoi(optarg);
  87             _nc_tracing = (1 << debug_level) - 1;
  88             break;
  89         case 'U':
  90             invert_dependencies = TRUE;
  91             break;
  92         case 'V':
  93             (void) fputs(NCURSES_VERSION, stdout);
  94             putchar('\n');
  95             ExitProgram(EXIT_SUCCESS);
  96         default:
  97             (void) fprintf (stderr, "usage: toe [-huUV] [-v n] [file...]\n");
  98             ExitProgram(EXIT_FAILURE);
  99         }
 100
 101     if (direct_dependencies || invert_dependencies)
 102     {
 103         if (freopen(argv[optind], "r", stdin) == NULL)
 104         {
 105             (void) fflush(stdout);
 106             fprintf(stderr, "%s: can't open %s\n", _nc_progname, argv[optind]);
 107             ExitProgram(EXIT_FAILURE);
 108         }
 109
 110         /* parse entries out of the source file */
 111         _nc_set_source(argv[optind]);
 112         _nc_read_entry_source(stdin, (char *)NULL,
 113                               FALSE, FALSE,
 114                               NULLHOOK);
 115     }
 116
 117     /* maybe we want a direct-dependency listing? */
 118     if (direct_dependencies)
 119     {
 120         ENTRY   *qp;
 121
 122         for_entry_list(qp)
 123             if (qp->nuses)
 124             {
 125                 int             j;
 126
 127                 (void) printf("%s:", _nc_first_name(qp->tterm.term_names));
 128                 for (j = 0; j < qp->nuses; j++)
 129                     (void) printf(" %s", (char *)(qp->uses[j].parent));
 130                 putchar('\n');
 131             }
 132
 133         ExitProgram(EXIT_SUCCESS);
 134     }
 135
 136     /* maybe we want a reverse-dependency listing? */
 137     if (invert_dependencies)
 138     {
 139         ENTRY   *qp, *rp;
 140         int             matchcount;
 141
 142         for_entry_list(qp)
 143         {
 144             matchcount = 0;
 145             for_entry_list(rp)
 146             {
 147                 if (rp->nuses == 0)
 148                     continue;
 149
 150                 for (i = 0; i < rp->nuses; i++)
 151                     if (_nc_name_match(qp->tterm.term_names,(char*)rp->uses[i].parent, "|"))
 152                     {
 153                         if (matchcount++ == 0)
 154                             (void) printf("%s:",
 155                                           _nc_first_name(qp->tterm.term_names));
 156                         (void) printf(" %s",
 157                                       _nc_first_name(rp->tterm.term_names));
 158                     }
 159             }
 160             if (matchcount)
 161                 putchar('\n');
 162         }
 163
 164         ExitProgram(EXIT_SUCCESS);
 165     }
 166
 167     /*
 168      * If we get this far, user wants a simple terminal type listing.
 169      */
 170     if (optind < argc) {
 171         code = typelist(argc-optind, argv+optind, header, deschook);
 172     } else {
 173         char    *by_env, *home, *eargv[3];
 174         int     j;
 175
 176         j = 0;
 177         if ((by_env = getenv("TERMINFO")) != (char *)NULL)
 178             eargv[j++] = by_env;
 179         else
 180         {
 181             if ((home = getenv("HOME")) != (char *)NULL)
 182             {
 183                 char    personal[PATH_MAX];
 184
 185                 (void) sprintf(personal, PRIVATE_INFO, home);
 186                 if (access(personal, F_OK) == 0)
 187                     eargv[j++] = personal;
 188             }
 189             eargv[j++] = TERMINFO;
 190         }
 191         eargv[j] = (char *)NULL;
 192
 193         code = typelist(j, eargv, header, deschook);
 194     }
 195
 196     ExitProgram(code);
 197 }
 198
 199 static void deschook(const char *cn, TERMTYPE *tp)
 200 /* display a description for the type */
 201 {
 202     const char *desc;
 203
 204     if ((desc = strrchr(tp->term_names, '|')) == (char *)NULL)
 205         desc = "(No description)";
 206     else
 207         ++desc;
 208
 209     (void) printf("%-10s\t%s\n", cn, desc);
 210 }
 211
 212 static int typelist(int eargc, char *eargv[],
 213                      bool verbosity,
 214                      void  (*hook)(const char *, TERMTYPE *tp))
 215 /* apply a function to each entry in given terminfo directories */
 216 {
 217     int i;
 218
 219     for (i = 0; i < eargc; i++)
 220     {
 221         DIR     *termdir;
 222         struct dirent *subdir;
 223
 224         if ((termdir = opendir(eargv[i])) == (DIR *)NULL)
 225         {
 226             (void) fflush(stdout);
 227             (void) fprintf(stderr,
 228                            "%s: can't open terminfo directory %s\n",
 229                            _nc_progname, eargv[i]);
 230             return(EXIT_FAILURE);
 231         }
 232         else if (verbosity)
 233             (void) printf("#\n#%s:\n#\n", eargv[i]);
 234
 235         while ((subdir = readdir(termdir)) != NULL)
 236         {
 237             size_t      len = NAMLEN(subdir);
 238             char        buf[PATH_MAX];
 239             char        name_1[PATH_MAX];
 240             DIR *entrydir;
 241             struct dirent *entry;
 242
 243             strncpy(name_1, subdir->d_name, len)[len] = '\0';
 244             if (!strcmp(name_1, ".")
 245                 || !strcmp(name_1, ".."))
 246                 continue;
 247
 248             (void) strcpy(buf, eargv[i]);
 249             (void) strcat(buf, "/");
 250             (void) strcat(buf, name_1);
 251             (void) strcat(buf, "/");
 252             chdir(buf);
 253             entrydir = opendir(".");
 254             while ((entry = readdir(entrydir)) != NULL)
 255             {
 256                 char            name_2[PATH_MAX];
 257                 TERMTYPE        lterm;
 258                 char            *cn;
 259                 int             status;
 260
 261                 len = NAMLEN(entry);
 262                 strncpy(name_2, entry->d_name, len)[len] = '\0';
 263                 if (!strcmp(name_2, ".")
 264                     || !strcmp(name_2, ".."))
 265                     continue;
 266
 267                 status = _nc_read_file_entry(name_2, &lterm);
 268                 if (status <= 0)
 269                 {
 270                     (void) fflush(stdout);
 271                     (void) fprintf(stderr,
 272                                    "toe: couldn't open terminfo file %s.\n",
 273                                    name_2);
 274                     return(EXIT_FAILURE);
 275                 }
 276
 277                 /* only visit things once, by primary name */
 278                 cn = _nc_first_name(lterm.term_names);
 279                 if (!strcmp(cn, name_2))
 280                 {
 281                     /* apply the selected hook function */
 282                     (*hook)(cn, &lterm);
 283                 }
 284                 if (lterm.term_names) {
 285                     free(lterm.term_names);
 286                     lterm.term_names = NULL;
 287                 }
 288                 if (lterm.str_table) {
 289                     free(lterm.str_table);
 290                     lterm.str_table = NULL;
 291                 }
 292             }
 293             closedir(entrydir);
 294         }
 295         closedir(termdir);
 296     }
 297
 298     return(EXIT_SUCCESS);
 299 }