contrib/ncurses-5.4/progs/toe.c

   1 /****************************************************************************
   2  * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc.              *
   3  *                                                                          *
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   5  * copy of this software and associated documentation files (the            *
   6  * "Software"), to deal in the Software without restriction, including      *
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   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.                   *
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  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
  16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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  18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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  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 1.27 2002/10/06 01:22:05 tom Exp $")
  47
  48 #define isDotname(name) (!strcmp(name, ".") || !strcmp(name, ".."))
  49
  50 const char *_nc_progname;
  51
  52 static int typelist(int eargc, char *eargv[], bool,
  53                     void (*)(const char *, TERMTYPE *));
  54 static void deschook(const char *, TERMTYPE *);
  55
  56 #if NO_LEAKS
  57 #undef ExitProgram
  58 static void
  59 ExitProgram(int code) GCC_NORETURN;
  60      static void ExitProgram(int code)
  61 {
  62     _nc_free_entries(_nc_head);
  63     _nc_leaks_dump_entry();
  64     _nc_free_and_exit(code);
  65 }
  66 #endif
  67
  68 static bool
  69 is_a_file(char *path)
  70 {
  71     struct stat sb;
  72     return (stat(path, &sb) == 0
  73             && (sb.st_mode & S_IFMT) == S_IFREG);
  74 }
  75
  76 static bool
  77 is_a_directory(char *path)
  78 {
  79     struct stat sb;
  80     return (stat(path, &sb) == 0
  81             && (sb.st_mode & S_IFMT) == S_IFDIR);
  82 }
  83
  84 static char *
  85 get_directory(char *path)
  86 {
  87     if (path != 0) {
  88         if (!is_a_directory(path)
  89             || access(path, R_OK | X_OK) != 0)
  90             path = 0;
  91     }
  92     return path;
  93 }
  94
  95 int
  96 main(int argc, char *argv[])
  97 {
  98     bool direct_dependencies = FALSE;
  99     bool invert_dependencies = FALSE;
 100     bool header = FALSE;
 101     int i, c;
 102     int code;
 103
 104     _nc_progname = _nc_rootname(argv[0]);
 105
 106     while ((c = getopt(argc, argv, "huv:UV")) != EOF)
 107         switch (c) {
 108         case 'h':
 109             header = TRUE;
 110             break;
 111         case 'u':
 112             direct_dependencies = TRUE;
 113             break;
 114         case 'v':
 115             set_trace_level(atoi(optarg));
 116             break;
 117         case 'U':
 118             invert_dependencies = TRUE;
 119             break;
 120         case 'V':
 121             puts(curses_version());
 122             ExitProgram(EXIT_SUCCESS);
 123         default:
 124             (void) fprintf(stderr, "usage: toe [-huUV] [-v n] [file...]\n");
 125             ExitProgram(EXIT_FAILURE);
 126         }
 127
 128     if (direct_dependencies || invert_dependencies) {
 129         if (freopen(argv[optind], "r", stdin) == 0) {
 130             (void) fflush(stdout);
 131             fprintf(stderr, "%s: can't open %s\n", _nc_progname, argv[optind]);
 132             ExitProgram(EXIT_FAILURE);
 133         }
 134
 135         /* parse entries out of the source file */
 136         _nc_set_source(argv[optind]);
 137         _nc_read_entry_source(stdin, 0, FALSE, FALSE, NULLHOOK);
 138     }
 139
 140     /* maybe we want a direct-dependency listing? */
 141     if (direct_dependencies) {
 142         ENTRY *qp;
 143
 144         for_entry_list(qp) {
 145             if (qp->nuses) {
 146                 int j;
 147
 148                 (void) printf("%s:", _nc_first_name(qp->tterm.term_names));
 149                 for (j = 0; j < qp->nuses; j++)
 150                     (void) printf(" %s", qp->uses[j].name);
 151                 putchar('\n');
 152             }
 153         }
 154
 155         ExitProgram(EXIT_SUCCESS);
 156     }
 157
 158     /* maybe we want a reverse-dependency listing? */
 159     if (invert_dependencies) {
 160         ENTRY *qp, *rp;
 161         int matchcount;
 162
 163         for_entry_list(qp) {
 164             matchcount = 0;
 165             for_entry_list(rp) {
 166                 if (rp->nuses == 0)
 167                     continue;
 168
 169                 for (i = 0; i < rp->nuses; i++)
 170                     if (_nc_name_match(qp->tterm.term_names,
 171                                        rp->uses[i].name, "|")) {
 172                         if (matchcount++ == 0)
 173                             (void) printf("%s:",
 174                                           _nc_first_name(qp->tterm.term_names));
 175                         (void) printf(" %s",
 176                                       _nc_first_name(rp->tterm.term_names));
 177                     }
 178             }
 179             if (matchcount)
 180                 putchar('\n');
 181         }
 182
 183         ExitProgram(EXIT_SUCCESS);
 184     }
 185
 186     /*
 187      * If we get this far, user wants a simple terminal type listing.
 188      */
 189     if (optind < argc) {
 190         code = typelist(argc - optind, argv + optind, header, deschook);
 191     } else {
 192         char *home, *eargv[3];
 193         char personal[PATH_MAX];
 194         int j;
 195
 196         j = 0;
 197         if ((eargv[j] = get_directory(getenv("TERMINFO"))) != 0) {
 198             j++;
 199         } else {
 200             if ((home = getenv("HOME")) != 0) {
 201                 (void) sprintf(personal, PRIVATE_INFO, home);
 202                 if ((eargv[j] = get_directory(personal)) != 0)
 203                     j++;
 204             }
 205             if ((eargv[j] = get_directory(strcpy(personal, TERMINFO))) != 0)
 206                 j++;
 207         }
 208         eargv[j] = 0;
 209
 210         code = typelist(j, eargv, header, deschook);
 211     }
 212
 213     ExitProgram(code);
 214 }
 215
 216 static void
 217 deschook(const char *cn, TERMTYPE * tp)
 218 /* display a description for the type */
 219 {
 220     const char *desc;
 221
 222     if ((desc = strrchr(tp->term_names, '|')) == 0)
 223         desc = "(No description)";
 224     else
 225         ++desc;
 226
 227     (void) printf("%-10s\t%s\n", cn, desc);
 228 }
 229
 230 static int
 231 typelist(int eargc, char *eargv[],
 232          bool verbosity,
 233          void (*hook) (const char *, TERMTYPE * tp))
 234 /* apply a function to each entry in given terminfo directories */
 235 {
 236     int i;
 237
 238     for (i = 0; i < eargc; i++) {
 239         DIR *termdir;
 240         struct dirent *subdir;
 241
 242         if ((termdir = opendir(eargv[i])) == 0) {
 243             (void) fflush(stdout);
 244             (void) fprintf(stderr,
 245                            "%s: can't open terminfo directory %s\n",
 246                            _nc_progname, eargv[i]);
 247             return (EXIT_FAILURE);
 248         } else if (verbosity)
 249             (void) printf("#\n#%s:\n#\n", eargv[i]);
 250
 251         while ((subdir = readdir(termdir)) != 0) {
 252             size_t len = NAMLEN(subdir);
 253             char buf[PATH_MAX];
 254             char name_1[PATH_MAX];
 255             DIR *entrydir;
 256             struct dirent *entry;
 257
 258             strncpy(name_1, subdir->d_name, len)[len] = '\0';
 259             if (isDotname(name_1))
 260                 continue;
 261
 262             (void) sprintf(buf, "%s/%s/", eargv[i], name_1);
 263             if (chdir(buf) != 0)
 264                 continue;
 265
 266             entrydir = opendir(".");
 267             while ((entry = readdir(entrydir)) != 0) {
 268                 char name_2[PATH_MAX];
 269                 TERMTYPE lterm;
 270                 char *cn;
 271                 int status;
 272
 273                 len = NAMLEN(entry);
 274                 strncpy(name_2, entry->d_name, len)[len] = '\0';
 275                 if (isDotname(name_2) || !is_a_file(name_2))
 276                     continue;
 277
 278                 status = _nc_read_file_entry(name_2, &lterm);
 279                 if (status <= 0) {
 280                     (void) fflush(stdout);
 281                     (void) fprintf(stderr,
 282                                    "toe: couldn't open terminfo file %s.\n",
 283                                    name_2);
 284                     return (EXIT_FAILURE);
 285                 }
 286
 287                 /* only visit things once, by primary name */
 288                 cn = _nc_first_name(lterm.term_names);
 289                 if (!strcmp(cn, name_2)) {
 290                     /* apply the selected hook function */
 291                     (*hook) (cn, &lterm);
 292                 }
 293                 if (lterm.term_names) {
 294                     free(lterm.term_names);
 295                     lterm.term_names = 0;
 296                 }
 297                 if (lterm.str_table) {
 298                     free(lterm.str_table);
 299                     lterm.str_table = 0;
 300                 }
 301             }
 302             closedir(entrydir);
 303         }
 304         closedir(termdir);
 305     }
 306
 307     return (EXIT_SUCCESS);
 308 }