Make it possible to build libhardware.

third_party/hwcplus/src/stub.c

+#include "stub.h"
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <cutils/properties.h>
+
+size_t
+strlcpy(char* dst, const char* src, size_t siz) {
+    char* d = dst;
+    const char* s = src;
+    size_t n = siz;
+
+    /* Copy as many bytes as will fit */
+    if (n != 0) {
+        while (--n != 0) {
+            if ((*d++ = *s++) == '\0')
+                break;
+        }
+    }
+
+    /* Not enough room in dst, add NUL and traverse rest of src */
+    if (n == 0) {
+        if (siz != 0)
+            *d = '\0'; /* NUL-terminate dst */
+        while (*s++) {
+        }
+    }
+
+    return(s - src - 1); /* count does not include NUL */
+}
+
+int __android_log_print(int prio, const char* tag,  const char* fmt, ...) {
+    char buf[999];
+    int pos = 0;
+    va_list args;
+
+    va_start(args, fmt);
+    pos += snprintf(buf+pos, sizeof(buf)-pos, "android_log %d %s: ", prio, tag);
+    pos += vsnprintf(buf+pos, sizeof(buf)-pos, fmt, args);
+    va_end(args);
+    buf[sizeof(buf)-1] = 0;
+    fprintf(stderr, "%s\n", buf);
+    return pos;
+}
+
+int property_get(const char* key, char* value, const char* default_value) {
+    printf("property_get %s\n", key);
+    const char* r = default_value;
+    if (!r)
+        r = "";
+    strncpy(value, r, PROPERTY_VALUE_MAX);
+    return strlen(r);
+}
+