sup. FreeRTOS riscV-64 (k210 cpu). 6th stepHEADmaster

1 files changed, 85 insertions, 0 deletions

diff --git a/libiot/sys/chdir.c b/libiot/sys/chdir.c
new file mode 100644
index 0000000..872a37e
--- /dev/null
+++ b/libiot/sys/chdir.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2015 - 2018, IBEROXARXA SERVICIOS INTEGRALES, S.L.
+ * Copyright (C) 2015 - 2018, Jaume Olivé Petrus (jolive@whitecatboard.org)
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the <organization> nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *     * The WHITECAT logotype cannot be changed, you can remove it, but you
+ *       cannot change it in any way. The WHITECAT logotype is:
+ *
+ *          /\       /\
+ *         /  \_____/  \
+ *        /_____________\
+ *        W H I T E C A T
+ *
+ *     * Redistributions in binary form must retain all copyright notices printed
+ *       to any local or remote output device. This include any reference to
+ *       Lua RTOS, whitecatboard.org, Lua, and other copyright notices that may
+ *       appear in the future.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Lua RTOS, chdir implementation
+ *
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+#include <unistd.h>
+
+//#include <sys/mount.h>
+#include <sys/fcntl.h>
+
+char currdir[PATH_MAX + 1] = "/";
+
+int chdir(const char *path) {
+    struct stat statb;
+
+    if (!path) {
+        errno = EFAULT;
+        return -1;
+    }
+
+    if (!*path) {
+        errno = ENOENT;
+        return -1;
+    }
+
+    char *npath = mount_normalize_path(path);
+
+    if (stat(npath, &statb) || !S_ISDIR(statb.st_mode)) {
+        free(npath);
+        errno = ENOTDIR;
+        return -1;
+    }
+
+    strncpy(currdir, npath, PATH_MAX);
+
+    free(npath);
+
+    return 0;
+}