mirror of https://github.com/cc65/cc65.git
131 lines
3.0 KiB
C
131 lines
3.0 KiB
C
/*
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** Enumerate devices, directories and files.
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**
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** 2012-10-15, Oliver Schmidt (ol.sc@web.de)
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**
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*/
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <device.h>
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#include <dirent.h>
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#include <cc65.h>
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/* returns true for error, false for OK */
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bool printdir (char *newdir)
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{
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char *olddir;
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char *curdir;
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DIR *dir;
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struct dirent *ent;
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char *subdirs = NULL;
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unsigned dirnum = 0;
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unsigned num;
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olddir = malloc (FILENAME_MAX);
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if (olddir == NULL) {
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perror ("cannot allocate memory");
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return true;
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}
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getcwd (olddir, FILENAME_MAX);
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if (chdir (newdir)) {
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/* If chdir() fails we just print the
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** directory name - as done for files.
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*/
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printf (" Dir %s\n", newdir);
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free (olddir);
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return false;
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}
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curdir = malloc (FILENAME_MAX);
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if (curdir == NULL) {
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perror ("cannot allocate memory");
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return true;
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}
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/* We call getcwd() in order to print the
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** absolute pathname for a subdirectory.
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*/
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getcwd (curdir, FILENAME_MAX);
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printf (" Dir %s:\n", curdir);
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free (curdir);
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/* Calling opendir() always with "." avoids
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** fiddling around with pathname separators.
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*/
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dir = opendir (".");
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while (ent = readdir (dir)) {
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if (_DE_ISREG (ent->d_type)) {
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printf (" File %s\n", ent->d_name);
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continue;
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}
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/* We defer handling of subdirectories until we're done with the
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** current one as several targets don't support other disk i/o
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** while reading a directory (see cc65 readdir() doc for more).
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*/
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if (_DE_ISDIR (ent->d_type)) {
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subdirs = realloc (subdirs, FILENAME_MAX * (dirnum + 1));
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strcpy (subdirs + FILENAME_MAX * dirnum++, ent->d_name);
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}
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}
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closedir (dir);
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for (num = 0; num < dirnum; ++num) {
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if (printdir (subdirs + FILENAME_MAX * num))
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break;
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}
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free (subdirs);
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chdir (olddir);
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free (olddir);
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return false;
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}
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void main (void)
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{
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unsigned char device;
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char *devicedir;
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devicedir = malloc (FILENAME_MAX);
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if (devicedir == NULL) {
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perror ("cannot allocate memory");
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return;
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}
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/* Calling getfirstdevice()/getnextdevice() does _not_ turn on the motor
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** of a drive-type device and does _not_ check for a disk in the drive.
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*/
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device = getfirstdevice ();
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while (device != INVALID_DEVICE) {
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printf ("Device %d:\n", device);
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/* Calling getdevicedir() _does_ check for a (formatted) disk in a
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** floppy-disk-type device and returns NULL if that check fails.
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*/
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if (getdevicedir (device, devicedir, FILENAME_MAX)) {
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printdir (devicedir);
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} else {
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printf (" N/A\n");
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}
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device = getnextdevice (device);
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}
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if (doesclrscrafterexit ()) {
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getchar ();
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}
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free (devicedir);
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}
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