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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <dirent.h>
#include <fontconfig/fontconfig.h>
FcBool
mkdir_p(const char *dir)
{
char *parent;
FcBool ret;
if (strlen (dir) == 0)
return FcFalse;
parent = (char *) FcStrDirname (dir);
if (!parent)
return FcFalse;
if (access (parent, F_OK) == 0)
ret = mkdir (dir, 0755) == 0 && chmod (dir, 0755) == 0;
else if (access (parent, F_OK) == -1)
ret = mkdir_p (parent) && (mkdir (dir, 0755) == 0) && chmod (dir, 0755) == 0;
else
ret = FcFalse;
free (parent);
return ret;
}
FcBool
unlink_dirs(const char *dir)
{
DIR *d = opendir (dir);
struct dirent *e;
size_t len = strlen (dir);
char *n = NULL;
FcBool ret = FcTrue;
if (!d)
return FcFalse;
while ((e = readdir(d)) != NULL)
{
size_t l;
if (strcmp (e->d_name, ".") == 0 ||
strcmp (e->d_name, "..") == 0)
continue;
l = strlen (e->d_name) + 1;
if (n)
free (n);
n = malloc (l + len + 1);
strcpy (n, dir);
n[len] = '/';
strcpy (&n[len + 1], e->d_name);
if (e->d_type == DT_DIR)
{
if (!unlink_dirs (n))
{
fprintf (stderr, "E: %s\n", n);
ret = FcFalse;
break;
}
}
else
{
if (unlink (n) == -1)
{
fprintf (stderr, "E: %s\n", n);
ret = FcFalse;
break;
}
}
}
if (n)
free (n);
closedir (d);
if (rmdir (dir) == -1)
{
fprintf (stderr, "E: %s\n", dir);
return FcFalse;
}
return ret;
}
int
main(void)
{
char template[32] = "fontconfig-XXXXXXXX";
char *tmp = mkdtemp (template);
size_t len = strlen (tmp), xlen, dlen;
char xdg[256], confd[256], fn[256], nfn[256], ud[256], nud[256];
int ret = -1;
FILE *fp;
char *content = "<fontconfig></fontconfig>";
strcpy (xdg, tmp);
strcpy (&xdg[len], "/.config");
setenv ("HOME", tmp, 1);
setenv ("XDG_CONFIG_HOME", xdg, 1);
xlen = strlen (xdg);
strcpy (confd, xdg);
strcpy (&confd[xlen], "/fontconfig");
dlen = strlen (confd);
/* In case there are no configuration files nor directory */
FcInit ();
if (access (confd, F_OK) == 0)
{
fprintf (stderr, "%s unexpectedly exists\n", confd);
goto bail;
}
FcFini ();
if (!unlink_dirs (tmp))
{
fprintf (stderr, "Unable to clean up\n");
goto bail;
}
/* In case there are the user configuration file */
strcpy (fn, tmp);
strcpy (&fn[len], "/.fonts.conf");
strcpy (nfn, confd);
strcpy (&nfn[dlen], "/fonts.conf");
if (!mkdir_p (confd))
{
fprintf (stderr, "Unable to create a config dir: %s\n", confd);
goto bail;
}
if ((fp = fopen (fn, "wb")) == NULL)
{
fprintf (stderr, "Unable to create a config file: %s\n", fn);
goto bail;
}
fwrite (content, sizeof (char), strlen (content), fp);
fclose (fp);
FcInit ();
if (access (nfn, F_OK) != 0)
{
fprintf (stderr, "migration failed for %s\n", nfn);
goto bail;
}
FcFini ();
if (!unlink_dirs (tmp))
{
fprintf (stderr, "Unable to clean up\n");
goto bail;
}
/* In case there are the user configuration dir */
strcpy (ud, tmp);
strcpy (&ud[len], "/.fonts.conf.d");
strcpy (nud, confd);
strcpy (&nud[dlen], "/conf.d");
if (!mkdir_p (ud))
{
fprintf (stderr, "Unable to create a config dir: %s\n", ud);
goto bail;
}
FcInit ();
if (access (nud, F_OK) != 0)
{
fprintf (stderr, "migration failed for %s\n", nud);
goto bail;
}
FcFini ();
ret = 0;
bail:
unlink_dirs (tmp);
return ret;
}
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