Merge commit 'a302c65dc65896776d6cb9e2c89a6ccc77ada530' as 'third-party/libuv'

third-party/libuv/samples/socks5-proxy/util.c

@@ -0,0 +1,72 @@
+/* Copyright StrongLoop, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "defs.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void pr_do(FILE *stream,
+                  const char *label,
+                  const char *fmt,
+                  va_list ap);
+
+void *xmalloc(size_t size) {
+  void *ptr;
+
+  ptr = malloc(size);
+  if (ptr == NULL) {
+    pr_err("out of memory, need %lu bytes", (unsigned long) size);
+    exit(1);
+  }
+
+  return ptr;
+}
+
+void pr_info(const char *fmt, ...) {
+  va_list ap;
+  va_start(ap, fmt);
+  pr_do(stdout, "info", fmt, ap);
+  va_end(ap);
+}
+
+void pr_warn(const char *fmt, ...) {
+  va_list ap;
+  va_start(ap, fmt);
+  pr_do(stderr, "warn", fmt, ap);
+  va_end(ap);
+}
+
+void pr_err(const char *fmt, ...) {
+  va_list ap;
+  va_start(ap, fmt);
+  pr_do(stderr, "error", fmt, ap);
+  va_end(ap);
+}
+
+static void pr_do(FILE *stream,
+                  const char *label,
+                  const char *fmt,
+                  va_list ap) {
+  char fmtbuf[1024];
+  vsnprintf(fmtbuf, sizeof(fmtbuf), fmt, ap);
+  fprintf(stream, "%s:%s: %s\n", _getprogname(), label, fmtbuf);
+}