Squash commits for public release

libs/libc/posix/system.c

@@ -0,0 +1,34 @@
+#include <string.h>
+#include <sys/utsname.h>
+#include <sysdep.h>
+#include <unistd.h>
+
+int uname(utsname_t* buf)
+{
+    int res = DO_SYSCALL_1(SYS_UNAME, buf);
+    RETURN_WITH_ERRNO(res, 0, -1);
+}
+
+#define PATH_CONSTANT "/bin:/usr/bin"
+#define PATH_CONSTANT_LEN sizeof(PATH_CONSTANT)
+size_t confstr(int name, char* buf, size_t len)
+{
+    switch (name) {
+    case _CS_PATH:
+        if (!buf || !len) {
+            return PATH_CONSTANT_LEN;
+        } else {
+            // Return path only if enough space.
+            if (len < PATH_CONSTANT_LEN) {
+                return 0;
+            }
+            memcpy(buf, PATH_CONSTANT, PATH_CONSTANT_LEN);
+            return PATH_CONSTANT_LEN;
+        }
+
+    default:
+        break;
+    }
+
+    return 0;
+}