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Some FS navigation in the debug console

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Since I'm working on VFS rewrites...
This commit is contained in:
Kevin Lange 2013-11-30 22:27:45 -08:00
parent da1eb69d6c
commit 1cbd26689b
1 changed files with 41 additions and 1 deletions
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42
kernel/misc/debug_shell.c
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@ -112,7 +112,7 @@ struct shell_command {
char * description;
};
#define NUM_COMMANDS 4
#define NUM_COMMANDS 6
static struct shell_command shell_commands[NUM_COMMANDS];
/*
@ -143,6 +143,42 @@ static int shell_help(fs_node_t * tty, int argc, char * argv[]) {
return 0;
}
static int shell_cd(fs_node_t * tty, int argc, char * argv[]) {
if (argc < 2) {
return -1;
}
char * newdir = argv[1];
char * path = canonicalize_path(current_process->wd_name, newdir);
fs_node_t * chd = kopen(path, 0);
if (chd) {
if ((chd->flags & FS_DIRECTORY) == 0) {
return -1;
}
free(current_process->wd_name);
current_process->wd_name = malloc(strlen(path) + 1);
memcpy(current_process->wd_name, path, strlen(path) + 1);
return 0;
} else {
return -1;
}
}
static int shell_ls(fs_node_t * tty, int argc, char * argv[]) {
/* Okay, we're going to take the working directory... */
fs_node_t * wd = kopen(current_process->wd_name, 0);
uint32_t index = 0;
struct dirent * kentry = readdir_fs(wd, index);
while (kentry) {
fs_printf(tty, "%s\n", kentry->name);
index++;
kentry = readdir_fs(wd, index);
}
close_fs(wd);
free(wd);
return 0;
}
static struct shell_command shell_commands[NUM_COMMANDS] = {
{"shell", &shell_create_userspace_shell,
"Runs a userspace shell on this tty."},
@ -150,6 +186,10 @@ static struct shell_command shell_commands[NUM_COMMANDS] = {
"Prints arguments."},
{"help", &shell_help,
"Prints a list of possible shell commands and their descriptions."},
{"cd", &shell_cd,
"Change current directory."},
{"ls", &shell_ls,
"List files in current or other directory."},
{NULL, NULL, NULL}
};