This file is indexed.

/usr/include/coap/debug.h is in libcoap-1-0-dev 4.1.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
/*
 * debug.h -- debug utilities
 *
 * Copyright (C) 2010-2011,2014 Olaf Bergmann <bergmann@tzi.org>
 *
 * This file is part of the CoAP library libcoap. Please see README for terms
 * of use.
 */

#ifndef _COAP_DEBUG_H_
#define _COAP_DEBUG_H_

#ifndef COAP_DEBUG_FD
#define COAP_DEBUG_FD stdout
#endif

#ifndef COAP_ERR_FD
#define COAP_ERR_FD stderr
#endif

#ifdef HAVE_SYSLOG_H
#include <syslog.h>
typedef short coap_log_t;
#else
/** Pre-defined log levels akin to what is used in \b syslog. */
typedef enum {
  LOG_EMERG=0,
  LOG_ALERT,
  LOG_CRIT,
  LOG_ERR,
  LOG_WARNING,
  LOG_NOTICE,
  LOG_INFO,
  LOG_DEBUG
} coap_log_t;
#endif

/** Returns the current log level. */
coap_log_t coap_get_log_level(void);

/** Sets the log level to the specified value. */
void coap_set_log_level(coap_log_t level);

/** Returns a zero-terminated string with the name of this library. */
const char *coap_package_name(void);

/** Returns a zero-terminated string with the library version. */
const char *coap_package_version(void);

/**
 * Writes the given text to @c COAP_ERR_FD (for @p level <= @c LOG_CRIT) or @c
 * COAP_DEBUG_FD (for @p level >= @c LOG_WARNING). The text is output only when
 * @p level is below or equal to the log level that set by coap_set_log_level().
 */
void coap_log_impl(coap_log_t level, const char *format, ...);

#ifndef coap_log
#define coap_log(...) coap_log_impl(__VA_ARGS__)
#endif

#ifndef NDEBUG

/* A set of convenience macros for common log levels. */
#define info(...) coap_log(LOG_INFO, __VA_ARGS__)
#define warn(...) coap_log(LOG_WARNING, __VA_ARGS__)
#define debug(...) coap_log(LOG_DEBUG, __VA_ARGS__)

#include "pdu.h"
void coap_show_pdu(const coap_pdu_t *);

struct coap_address_t;
size_t coap_print_addr(const struct coap_address_t *, unsigned char *, size_t);

#else

#define debug(...)
#define info(...)
#define warn(...)

#define coap_show_pdu(x)
#define coap_print_addr(...)

#endif /* NDEBUG */

#endif /* _COAP_DEBUG_H_ */