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toe.c
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2002-10-24
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/****************************************************************************
* Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
****************************************************************************/
/*
* toe.c --- table of entries report generator
*
*/
#include <progs.priv.h>
#include <sys/stat.h>
#include <dump_entry.h>
#include <term_entry.h>
MODULE_ID("$Id: toe.c,v 1.27 2002/10/06 01:22:05 tom Exp $")
#define isDotname(name) (!strcmp(name, ".") || !strcmp(name, ".."))
const char *_nc_progname;
static int typelist(int eargc, char *eargv[], bool,
void (*)(const char *, TERMTYPE *));
static void deschook(const char *, TERMTYPE *);
#if NO_LEAKS
#undef ExitProgram
static void
ExitProgram(int code) GCC_NORETURN;
static void ExitProgram(int code)
{
_nc_free_entries(_nc_head);
_nc_leaks_dump_entry();
_nc_free_and_exit(code);
}
#endif
static bool
is_a_file(char *path)
{
struct stat sb;
return (stat(path, &sb) == 0
&& (sb.st_mode & S_IFMT) == S_IFREG);
}
static bool
is_a_directory(char *path)
{
struct stat sb;
return (stat(path, &sb) == 0
&& (sb.st_mode & S_IFMT) == S_IFDIR);
}
static char *
get_directory(char *path)
{
if (path != 0) {
if (!is_a_directory(path)
|| access(path, R_OK | X_OK) != 0)
path = 0;
}
return path;
}
int
main(int argc, char *argv[])
{
bool direct_dependencies = FALSE;
bool invert_dependencies = FALSE;
bool header = FALSE;
int i, c;
int code;
_nc_progname = _nc_rootname(argv[0]);
while ((c = getopt(argc, argv, "huv:UV")) != EOF)
switch (c) {
case 'h':
header = TRUE;
break;
case 'u':
direct_dependencies = TRUE;
break;
case 'v':
set_trace_level(atoi(optarg));
break;
case 'U':
invert_dependencies = TRUE;
break;
case 'V':
puts(curses_version());
ExitProgram(EXIT_SUCCESS);
default:
(void) fprintf(stderr, "usage: toe [-huUV] [-v n] [file...]\n");
ExitProgram(EXIT_FAILURE);
}
if (direct_dependencies || invert_dependencies) {
if (freopen(argv[optind], "r", stdin) == 0) {
(void) fflush(stdout);
fprintf(stderr, "%s: can't open %s\n", _nc_progname, argv[optind]);
ExitProgram(EXIT_FAILURE);
}
/* parse entries out of the source file */
_nc_set_source(argv[optind]);
_nc_read_entry_source(stdin, 0, FALSE, FALSE, NULLHOOK);
}
/* maybe we want a direct-dependency listing? */
if (direct_dependencies) {
ENTRY *qp;
for_entry_list(qp) {
if (qp->nuses) {
int j;
(void) printf("%s:", _nc_first_name(qp->tterm.term_names));
for (j = 0; j < qp->nuses; j++)
(void) printf(" %s", qp->uses[j].name);
putchar('\n');
}
}
ExitProgram(EXIT_SUCCESS);
}
/* maybe we want a reverse-dependency listing? */
if (invert_dependencies) {
ENTRY *qp, *rp;
int matchcount;
for_entry_list(qp) {
matchcount = 0;
for_entry_list(rp) {
if (rp->nuses == 0)
continue;
for (i = 0; i < rp->nuses; i++)
if (_nc_name_match(qp->tterm.term_names,
rp->uses[i].name, "|")) {
if (matchcount++ == 0)
(void) printf("%s:",
_nc_first_name(qp->tterm.term_names));
(void) printf(" %s",
_nc_first_name(rp->tterm.term_names));
}
}
if (matchcount)
putchar('\n');
}
ExitProgram(EXIT_SUCCESS);
}
/*
* If we get this far, user wants a simple terminal type listing.
*/
if (optind < argc) {
code = typelist(argc - optind, argv + optind, header, deschook);
} else {
char *home, *eargv[3];
char personal[PATH_MAX];
int j;
j = 0;
if ((eargv[j] = get_directory(getenv("TERMINFO"))) != 0) {
j++;
} else {
if ((home = getenv("HOME")) != 0) {
(void) sprintf(personal, PRIVATE_INFO, home);
if ((eargv[j] = get_directory(personal)) != 0)
j++;
}
if ((eargv[j] = get_directory(strcpy(personal, TERMINFO))) != 0)
j++;
}
eargv[j] = 0;
code = typelist(j, eargv, header, deschook);
}
ExitProgram(code);
}
static void
deschook(const char *cn, TERMTYPE * tp)
/* display a description for the type */
{
const char *desc;
if ((desc = strrchr(tp->term_names, '|')) == 0)
desc = "(No description)";
else
++desc;
(void) printf("%-10s\t%s\n", cn, desc);
}
static int
typelist(int eargc, char *eargv[],
bool verbosity,
void (*hook) (const char *, TERMTYPE * tp))
/* apply a function to each entry in given terminfo directories */
{
int i;
for (i = 0; i < eargc; i++) {
DIR *termdir;
struct dirent *subdir;
if ((termdir = opendir(eargv[i])) == 0) {
(void) fflush(stdout);
(void) fprintf(stderr,
"%s: can't open terminfo directory %s\n",
_nc_progname, eargv[i]);
return (EXIT_FAILURE);
} else if (verbosity)
(void) printf("#\n#%s:\n#\n", eargv[i]);
while ((subdir = readdir(termdir)) != 0) {
size_t len = NAMLEN(subdir);
char buf[PATH_MAX];
char name_1[PATH_MAX];
DIR *entrydir;
struct dirent *entry;
strncpy(name_1, subdir->d_name, len)[len] = '\0';
if (isDotname(name_1))
continue;
(void) sprintf(buf, "%s/%s/", eargv[i], name_1);
if (chdir(buf) != 0)
continue;
entrydir = opendir(".");
while ((entry = readdir(entrydir)) != 0) {
char name_2[PATH_MAX];
TERMTYPE lterm;
char *cn;
int status;
len = NAMLEN(entry);
strncpy(name_2, entry->d_name, len)[len] = '\0';
if (isDotname(name_2) || !is_a_file(name_2))
continue;
status = _nc_read_file_entry(name_2, <erm);
if (status <= 0) {
(void) fflush(stdout);
(void) fprintf(stderr,
"toe: couldn't open terminfo file %s.\n",
name_2);
return (EXIT_FAILURE);
}
/* only visit things once, by primary name */
cn = _nc_first_name(lterm.term_names);
if (!strcmp(cn, name_2)) {
/* apply the selected hook function */
(*hook) (cn, <erm);
}
if (lterm.term_names) {
free(lterm.term_names);
lterm.term_names = 0;
}
if (lterm.str_table) {
free(lterm.str_table);
lterm.str_table = 0;
}
}
closedir(entrydir);
}
closedir(termdir);
}
return (EXIT_SUCCESS);
}