1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/libe2access/host/file.c Tue Dec 28 01:37:59 2021 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +/*
1.5 + * File access functions.
1.6 + *
1.7 + * Copyright (C) 2019 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#include <stdio.h>
1.26 +#include <string.h>
1.27 +#include <sys/types.h>
1.28 +#include <sys/stat.h>
1.29 +
1.30 +
1.31 +
1.32 +/* Test object types in the external environment. */
1.33 +
1.34 +int isdir(const char *name)
1.35 +{
1.36 + struct stat st;
1.37 +
1.38 + if (!lstat(name, &st))
1.39 + return S_ISDIR(st.st_mode);
1.40 + else
1.41 + return 0;
1.42 +}
1.43 +
1.44 +int isdir_dirname(const char *name)
1.45 +{
1.46 + char dirname[strlen(name) + 1];
1.47 + char *s;
1.48 +
1.49 + strcpy(dirname, name);
1.50 + s = strrchr(dirname, (int) '/');
1.51 +
1.52 + if (s != NULL)
1.53 + *s = '\0';
1.54 +
1.55 + return isdir(dirname);
1.56 +}
1.57 +
1.58 +int isfile(const char *name)
1.59 +{
1.60 + struct stat st;
1.61 +
1.62 + if (!lstat(name, &st))
1.63 + return S_ISREG(st.st_mode);
1.64 + else
1.65 + return 0;
1.66 +}
1.67 +
1.68 +/* Open a file in the external environment. */
1.69 +
1.70 +FILE *open_file_in_dir(const char *dirname, const char *basename,
1.71 + const char *mode)
1.72 +{
1.73 + char pathname[strlen(dirname) + strlen(basename) + 1];
1.74 +
1.75 + strcpy(pathname, dirname);
1.76 + strcat(pathname, "/");
1.77 + strcat(pathname, basename);
1.78 +
1.79 + return fopen(pathname, mode);
1.80 +}