1 /*
2 * Copyright 2021 Google LLC
3 * SPDX-License-Identifier: MIT
4 */
5
6 #include "proxy_common.h"
7
8 #include <stdarg.h>
9 #include <stdio.h>
10
11 struct proxy_renderer proxy_renderer;
12
13 void
proxy_log(const char * fmt,...)14 proxy_log(const char *fmt, ...)
15 {
16 const char prefix[] = "proxy: ";
17 char line[1024];
18 size_t len;
19 va_list va;
20 int ret;
21
22 len = ARRAY_SIZE(prefix) - 1;
23 memcpy(line, prefix, len);
24
25 va_start(va, fmt);
26 ret = vsnprintf(line + len, ARRAY_SIZE(line) - len, fmt, va);
27 va_end(va);
28
29 if (ret < 0) {
30 const char log_error[] = "log error";
31 memcpy(line + len, log_error, ARRAY_SIZE(log_error) - 1);
32 len += ARRAY_SIZE(log_error) - 1;
33 } else if ((size_t)ret < ARRAY_SIZE(line) - len) {
34 len += ret;
35 } else {
36 len = ARRAY_SIZE(line) - 1;
37 }
38
39 /* make room for newline */
40 if (len + 1 >= ARRAY_SIZE(line))
41 len--;
42
43 line[len++] = '\n';
44 line[len] = '\0';
45
46 virgl_log("%s", line);
47 }
48