From 6cf1cf171b0a74917c3c6ba60dcacbce8fad459e Mon Sep 17 00:00:00 2001
From: Leo C.
Date: Thu, 1 Aug 2024 14:01:36 +0200
Subject: fat cp/mv: handle rootdir as dest correctly

---
 avr/cmd_fat.c | 48 +++++++++++++++++++++---------------------------
 1 file changed, 21 insertions(+), 27 deletions(-)

(limited to 'avr/cmd_fat.c')

diff --git a/avr/cmd_fat.c b/avr/cmd_fat.c
index 41821e1..7ab6536 100644
--- a/avr/cmd_fat.c
+++ b/avr/cmd_fat.c
@@ -427,8 +427,16 @@ void ff_iterate(fatfunc_t fatfunc, int count, char* const file[], char* dest)
 	DIR dir;
 	FILINFO finfo;
     char srcpath[PATH_MAX], destpath[PATH_MAX];
+	uint8_t dest_is_dir = 0;
+
+	if (dest != NULL) {
+		if (f_opendir(&dir, dest) == FR_OK) {
+			dest_is_dir = 1;
+			f_closedir(&dir);
+		} else if (f_stat(dest, &finfo) == FR_OK && finfo.fattrib & AM_DIR)
+			dest_is_dir = 1;
+	}
 
-    uint8_t dest_is_dir = dest != NULL && f_stat(dest, &finfo) == FR_OK && finfo.fattrib & AM_DIR;
     for (uint8_t i = 0; i < count; i++) {
         char* pattern = NULL;
         strcpy(srcpath, file[i]);
@@ -457,7 +465,8 @@ void ff_iterate(fatfunc_t fatfunc, int count, char* const file[], char* dest)
 				if (dest != NULL) {
 					strcpy(destpath, dest);
 					if (dest_is_dir) {
-						strcat_P(destpath, PSTR("/"));
+						if (destpath[strlen(destpath) - 1] != '/')
+							strcat_P(destpath, PSTR("/"));
 						strcat(destpath, finfo.fname);
 					}
 				}
@@ -543,48 +552,33 @@ command_ret_t do_tst(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc
 	DIR Dir;					/* Directory object */
 	FILINFO finfo;
 	FRESULT res = FR_OK;
+	char buf[BUFFER_SIZE];
 	char *path = "";
 	char *pattern = "*";
 
 	printf_P(PSTR("sizeof DIR: %u, sizeof FIL: %u\n"), sizeof (DIR), sizeof (FILINFO));
 
-	char * buf = (char *) malloc(BUFFER_SIZE);
-	if (buf == NULL) {
-		cmd_error(CMD_RET_FAILURE, ENOMEM, NULL);
-	}
 	res = f_getcwd(buf, BUFFER_SIZE);  /* Get current directory path */
 
-	if (!res) {
-		printf_P(PSTR("cwd: '%s'\n"), buf);
-	}
-	free(buf);
-	if (res)
-		cmd_error(CMD_RET_FAILURE, res, NULL);
+	printf_P(PSTR("cwd: '%s', --> res: %d, %S\n"), buf, res, fat_rctostr(res));
 
 	if (argc > 1)
 		path = argv[1];
 	if (argc > 2)
 		pattern = argv[2];
-
 	printf_P(PSTR("arg: '%s' '%s'\n"), path, pattern);
-	printf_P(PSTR("==== f_stat:      "));
+
 	res = f_stat(path, &finfo);
-	cmd_error(0, res, NULL);
-	if (res == FR_OK) {
-		print_dirent(&finfo);
-	}
+	printf_P(PSTR("f_stat:         --> res: %d, %S\n"), res, fat_rctostr(res));
+	if (res == FR_OK) print_dirent(&finfo);
 
-	printf_P(PSTR("==== f_findfirst: "));
-	res = f_findfirst(&Dir, &finfo, path, pattern);  /* Start to search for files */
-	cmd_error(CMD_RET_FAILURE, res, NULL);
-	if (res == FR_OK) {
-		print_dirent(&finfo);
-	}
+	res = f_opendir(&Dir, path);
+	printf_P(PSTR("f_opendir:      --> res: %d, %S\n"), res, fat_rctostr(res));
 	f_closedir(&Dir);
 
-	printf_P(PSTR("==== f_opendir:   "));
-	res = f_opendir(&Dir, path);
-	cmd_error(CMD_RET_FAILURE, res, NULL);
+	res = f_findfirst(&Dir, &finfo, path, pattern);
+	printf_P(PSTR("f_findfirst:    --> res: %d, %S\n"), res, fat_rctostr(res));
+	if (res == FR_OK) print_dirent(&finfo);
 	f_closedir(&Dir);
 
 	return CMD_RET_SUCCESS;
-- 
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