ed95d7450d
Some time ago, a copies of the upstream dtc and libfdt sources were included in the kernel tree to avoid having these as external dependencies for building the kernel. Since then development on the upstream dtc and libfdt has continued. This updates the in-kernel versions to match the recently released upstream dtc version 1.2.0. This includes a number of bugfixes, many cleanups and a few new features. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
117 lines
2.6 KiB
C
117 lines
2.6 KiB
C
/*
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* Copyright 2007 Jon Loeliger, Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "dtc.h"
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#include "srcpos.h"
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/*
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* Like yylineno, this is the current open file pos.
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*/
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struct dtc_file *srcpos_file;
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static int dtc_open_one(struct dtc_file *file,
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const char *search,
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const char *fname)
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{
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char *fullname;
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if (search) {
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fullname = xmalloc(strlen(search) + strlen(fname) + 2);
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strcpy(fullname, search);
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strcat(fullname, "/");
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strcat(fullname, fname);
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} else {
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fullname = strdup(fname);
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}
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file->file = fopen(fullname, "r");
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if (!file->file) {
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free(fullname);
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return 0;
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}
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file->name = fullname;
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return 1;
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}
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struct dtc_file *dtc_open_file(const char *fname,
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const struct search_path *search)
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{
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static const struct search_path default_search = { NULL, NULL, NULL };
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struct dtc_file *file;
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const char *slash;
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file = xmalloc(sizeof(struct dtc_file));
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slash = strrchr(fname, '/');
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if (slash) {
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char *dir = xmalloc(slash - fname + 1);
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memcpy(dir, fname, slash - fname);
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dir[slash - fname] = 0;
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file->dir = dir;
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} else {
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file->dir = NULL;
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}
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if (streq(fname, "-")) {
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file->name = "stdin";
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file->file = stdin;
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return file;
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}
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if (fname[0] == '/') {
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file->file = fopen(fname, "r");
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if (!file->file)
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goto fail;
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file->name = strdup(fname);
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return file;
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}
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if (!search)
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search = &default_search;
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while (search) {
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if (dtc_open_one(file, search->dir, fname))
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return file;
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if (errno != ENOENT)
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goto fail;
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search = search->next;
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}
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fail:
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die("Couldn't open \"%s\": %s\n", fname, strerror(errno));
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}
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void dtc_close_file(struct dtc_file *file)
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{
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if (fclose(file->file))
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die("Error closing \"%s\": %s\n", file->name, strerror(errno));
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free(file->dir);
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free(file);
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}
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