Shell begins to be usefull.

9 files changed, 131 insertions, 18 deletions

diff --git a/src/kernel/config.h b/src/kernel/config.h
index e7b9591..f50a4ff 100644
--- a/src/kernel/config.h
+++ b/src/kernel/config.h
@@ -24,6 +24,6 @@
 
 // Comment to disable either form of debug log output
 #define DBGLOG_TO_SERIAL
-#define DBGLOG_TO_SCREEN
+//#define DBGLOG_TO_SCREEN
 
 /* vim: set ts=4 sw=4 tw=0 noet :*/
diff --git a/src/kernel/fs/iso9660.c b/src/kernel/fs/iso9660.c
index 4de6f2b..6c67823 100644
--- a/src/kernel/fs/iso9660.c
+++ b/src/kernel/fs/iso9660.c
@@ -315,7 +315,7 @@ bool iso9660_dir_readdir(fs_handle_t *h, size_t ent_no, dirent_t *d) {
 		if (!(dr->flags & ISO9660_DR_FLAG_DIR) && name[len] != ';') continue;
 		if (name[len-1] == '.') len--;	// file with no extension
 		
-		if (idx == ent_no) {
+		if (idx - 2 == ent_no) {
 			// Found the node we are interested in
 			if (len >= DIR_MAX) len = DIR_MAX - 1;
 			memcpy(d->name, name, len);
diff --git a/src/kernel/user/process.c b/src/kernel/user/process.c
index 52f1031..00a7e44 100644
--- a/src/kernel/user/process.c
+++ b/src/kernel/user/process.c
@@ -244,7 +244,7 @@ void process_exit(process_t *p, int status, int exit_code) {
 	// notify parent
 	process_t *par = p->parent;
 	if (par->status == PS_RUNNING) {
-		resume_on(par->children);
+		resume_on(&par->children);
 		resume_on(p);
 	}
 
@@ -408,7 +408,7 @@ void process_wait_any_child(process_t *par, proc_status_t *st, bool wait) {
 				{	int st = enter_critical(CL_NOSWITCH);
 
 					mutex_unlock(&par->lock);
-					wait_ok = wait_on(par);
+					wait_ok = wait_on(&par->children);
 
 					exit_critical(st);	}
 				
diff --git a/src/lib/include/unistd.h b/src/lib/include/unistd.h
new file mode 100644
index 0000000..5080d6c
--- /dev/null
+++ b/src/lib/include/unistd.h
@@ -0,0 +1,10 @@
+#pragma once
+#include <stddef.h>
+
+int chdir(const char* path);
+
+char* getcwd(char* buf, size_t buf_len);
+
+char* pathncat(char* buf, const char* add, size_t buf_len);		// path simplification
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/
diff --git a/src/lib/libkogata/Makefile b/src/lib/libkogata/Makefile
index 20c6dee..95de086 100644
--- a/src/lib/libkogata/Makefile
+++ b/src/lib/libkogata/Makefile
@@ -1,6 +1,6 @@
 OBJ = start.o malloc.o debug.o syscall.o user_region.o \
 	mainloop.o gip.o draw.o keyboard.o \
-	stdio.o
+	stdio.o unistd.o
 
 LIB = ../../common/libkogata/libkogata.lib ../../common/libalgo/libalgo.lib ../../common/libc/libc.lib
 
diff --git a/src/lib/libkogata/unistd.c b/src/lib/libkogata/unistd.c
new file mode 100644
index 0000000..80a32e4
--- /dev/null
+++ b/src/lib/libkogata/unistd.c
@@ -0,0 +1,67 @@
+#include <string.h>
+
+#include <syscall.h>
+
+#include <unistd.h>
+
+
+char cwd_buf[256];
+
+char* getcwd(char* buf, size_t buf_len) {
+	if (buf_len > strlen(cwd_buf)) {
+		strcpy(buf, cwd_buf);
+		return buf;
+	} else {
+		return 0;
+	}
+}
+
+int chdir(const char* path) {
+	char cwd_buf2[256];
+	strcpy(cwd_buf2, cwd_buf);
+
+	if (!pathncat(cwd_buf2, path, 256)) return -1;
+
+	stat_t st;
+	if (!stat(cwd_buf2, &st)) return -1;
+	if (!st.type & FT_DIR) return -1;
+
+	strcpy(cwd_buf, cwd_buf2);
+	return 0;
+}
+
+char* pathncat(char* buf, const char* add, size_t buf_len) {
+	if (strchr(add, ':')) {
+		if (strlen(add) < buf_len) {
+			strcpy(buf, add);
+			return buf;
+		} else {
+			return 0;
+		}
+	} else {
+		char* sep_init = strchr(buf, ':');
+		if (add[0] == '/') {
+			if (strlen(add) + (sep_init + 1 - buf) < buf_len) {
+				strcpy(sep_init + 1, add);
+				return buf;
+			} else {
+				return 0;
+			}
+		} else {
+			//TODO: simplify '..'
+			char* end = buf + strlen(buf) - 1;
+			if (*end != '/') end++;
+			if (end + 1 - buf + strlen(add) < buf_len) {
+				*end = '/';
+				strcpy(end + 1, add);
+				return buf;
+			} else {
+				return 0;
+			}
+		}
+		return 0;
+	}
+}
+
+
+/* vim: set ts=4 sw=4 tw=0 noet :*/
diff --git a/src/sysbin/init/main.c b/src/sysbin/init/main.c
index d7f3f36..6ac003b 100644
--- a/src/sysbin/init/main.c
+++ b/src/sysbin/init/main.c
@@ -80,10 +80,10 @@ void setup_sys() {
 
 	char* sep = strchr(buf, ':');
 	if (sep == 0) {
-		ok = fs_subfs("sys", "root", buf, FM_READ | FM_MMAP);
+		ok = fs_subfs("sys", "root", buf, FM_READ | FM_MMAP | FM_READDIR);
 	} else {
 		*sep = 0;
-		ok = fs_subfs("sys", buf, sep +1, FM_READ | FM_MMAP);
+		ok = fs_subfs("sys", buf, sep +1, FM_READ | FM_MMAP | FM_READDIR);
 	}
 
 	if (!ok) PANIC("[init] Could not bind root:/sys to sys:/");
@@ -166,7 +166,7 @@ int main(int argc, char **argv) {
 
 		char buf[50];
 		snprintf(buf, 50, "/config/%s", config);
-		bool ok = fs_subfs("config", "root", buf, FM_READ | FM_WRITE | FM_MMAP);
+		bool ok = fs_subfs("config", "root", buf, FM_READ | FM_WRITE | FM_MMAP | FM_READDIR);
 		if (!ok) PANIC("[init] Could not setup config:");
 	}
 
diff --git a/src/sysbin/shell/main.c b/src/sysbin/shell/main.c
index 54cec06..1929025 100644
--- a/src/sysbin/shell/main.c
+++ b/src/sysbin/shell/main.c
@@ -4,22 +4,58 @@
 #include <debug.h>
 
 #include <stdio.h>
+#include <unistd.h>
 
 #include <syscall.h>
 
+void ls(char* dir) {
+	fd_t f = open(dir, FM_READDIR);
+	if (f) {
+		dirent_t i;
+		int ent_no = 0;
+		while (readdir(f, ent_no++, &i)) {
+			printf("%s\n", i.name);
+		}
+		close(f);
+	} else {
+		printf("Could not open directory '%s'\n", dir);
+	}
+}
+
 int main(int argc, char **argv) {
 	dbg_printf("[shell] Starting\n");
 
 	/*fctl(stdio, FC_SET_BLOCKING, 0);*/
 
-	puts("Hello, world!\n");
+	puts("Kogata shell.\n");
+
+	chdir("sys:");
 
 	while(true) {
-		puts("> ");
 		char buf[256];
+		printf("\n%s> ", getcwd(buf, 256));
+
 		getline(buf, 256);
-		printf("You said: '%s'. I don't understand a word of that.\n\n", buf);
+		if (!strncmp(buf, "cd ", 3)) {
+			chdir(buf + 3);
+		} else if (!strcmp(buf, "ls")) {
+			if (getcwd(buf, 256)) {
+				ls(buf);
+			}
+		} else if (!strncmp(buf, "ls ", 3)) {
+			char buf2[256];
+			if (getcwd(buf2, 256)) {
+				if (pathncat(buf2, buf + 3, 256)) {
+					ls(buf2);
+				}
+			}
+		} else if (!strcmp(buf, "exit")) {
+			break;
+		} else {
+			printf("No such command.\n");
+		}
 	}
+	printf("Bye.\n");
 
 	return 0;
 }
diff --git a/src/sysbin/terminal/main.c b/src/sysbin/terminal/main.c
index 133736b..1174305 100644
--- a/src/sysbin/terminal/main.c
+++ b/src/sysbin/terminal/main.c
@@ -231,13 +231,7 @@ void c_buffer_info(gip_handler_t *s, gip_msg_header *p, gip_buffer_info_msg *m)
 void c_key_down(gip_handler_t *s, gip_msg_header *p) {
 	term_t *c = (term_t*)s->data;
 
-	keyboard_press(c->kb, p->arg);
-}
-
-void c_key_up(gip_handler_t *s, gip_msg_header *p) {
-	term_t *c = (term_t*)s->data;
-
-	key_t k = keyboard_release(c->kb, p->arg);
+	key_t k = keyboard_press(c->kb, p->arg);
 
 	c->wr_c_buf = 0;
 	if (k.flags & KBD_CHAR) {
@@ -250,6 +244,12 @@ void c_key_up(gip_handler_t *s, gip_msg_header *p) {
 	mainloop_nonblocking_write(&c->app, &c->wr_c_buf, 1, false);
 }
 
+void c_key_up(gip_handler_t *s, gip_msg_header *p) {
+	term_t *c = (term_t*)s->data;
+
+	keyboard_release(c->kb, p->arg);
+}
+
 void c_unknown_msg(gip_handler_t *s, gip_msg_header *p) {
 	// TODO
 }