From 5fefd233769a56caefdb2ffecaa9fb8b9ec6db86 Mon Sep 17 00:00:00 2001 From: user Date: Thu, 16 Jul 2026 12:49:19 +0200 Subject: fs rewrite stage 3: nested directories, paths, cwd (cd/mkdir/ls) - directories generalized: dir_find/dir_add/dir_remove take any dir inode; every dir carries '.'/'..'. Path resolution (resolve / resolve_parent) walks absolute or cwd-relative paths; open/mkdir/chdir/remove/opendir take paths. - per-process cwd: PROC_CWD in the PCB (root by default, inherited on fork); sys_chdir sets it, sys_opendir points ls at any directory. - shell: 'cd' builtin + cwd-aware prompt; 'mkdir'/'ls ' tools; 'exit'/'quit' and EOF call poweroff() (clean shutdown via the $ED opcode -> reliable save). - three HL/buffer-clobber bugs fixed along the way: resolve didn't preserve the path cursor across dir_find; cur_cwd clobbered HL; resolve_parent set the final name before resolve() overwrote wFsNameBuf (now copied after). - verified: nested mkdir/cd/save, multi-level paths (cat docs/sub/b), and the whole tree persists across a reboot. - README: document directories + the poweroff opcode. --- c/ls.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'c/ls.c') diff --git a/c/ls.c b/c/ls.c index 5d5ce43..0e2e01f 100644 --- a/c/ls.c +++ b/c/ls.c @@ -1,7 +1,10 @@ #include "gbos.h" -/* ls: list files in the filesystem. */ +/* ls [dir]: list a directory (default: current). */ void main(void) { + char *argv[4]; char name[16]; + unsigned char argc = argv_parse(argv, 4); unsigned char i; + if (opendir(argc > 0 ? argv[0] : ".")) { puts("ls: no such directory"); nl(); return; } for (i = 0; flist(i, name); i++) { name[15] = 0; puts(name); nl(); } } -- cgit v1.3.1-sl0p