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/* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see: <http://www.gnu.org/licenses/>
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "safemalloc.h"
#include "getpwuid.h"
const char
*find_home_dir(void)
{
struct passwd *pw;
const char *home;
home = getenv("HOME");
if (home == NULL || *home == '\0') {
pw = getpwuid(getuid());
if (pw != NULL)
home = pw->pw_dir;
else
home = NULL;
}
return (home);
}
char *
expand_path(const char *path)
{
char *expanded, *name;
const char *end, *value, *home;
home = find_home_dir();
if (strncmp(path, "~/", 2) == 0) {
if (home == NULL)
return (NULL);
xasprintf(&expanded, "%s%s", home, path + 1);
return (expanded);
}
if (*path == '$') {
end = strchr(path, '/');
if (end == NULL)
name = fxstrdup(path + 1);
else
name = strndup(path + 1, end - path - 1);
value = getenv(name);
free(name);
if (value == NULL)
return (NULL);
if (end == NULL)
end = "";
xasprintf(&expanded, "%s%s", value, end);
return (expanded);
}
return (fxstrdup(path));
}
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