err.h 4.6 KB

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  1. /* $Id$ */
  2. /*
  3. * err.h
  4. *
  5. * Adapted from OpenBSD libc *err* *warn* code.
  6. *
  7. * Copyright (c) 2001-2010 Aaron Turner.
  8. *
  9. * Copyright (c) 2013-2018 Fred Klassen - AppNeta
  10. *
  11. * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
  12. *
  13. * Copyright (c) 1993
  14. * The Regents of the University of California. All rights reserved.
  15. *
  16. * Redistribution and use in source and binary forms, with or without
  17. * modification, are permitted provided that the following conditions
  18. * are met:
  19. * 1. Redistributions of source code must retain the above copyright
  20. * notice, this list of conditions and the following disclaimer.
  21. * 2. Redistributions in binary form must reproduce the above copyright
  22. * notice, this list of conditions and the following disclaimer in the
  23. * documentation and/or other materials provided with the distribution.
  24. * 3. All advertising materials mentioning features or use of this software
  25. * must display the following acknowledgement:
  26. * This product includes software developed by the University of
  27. * California, Berkeley and its contributors.
  28. * 4. Neither the name of the University nor the names of its contributors
  29. * may be used to endorse or promote products derived from this software
  30. * without specific prior written permission.
  31. *
  32. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  33. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  34. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  35. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  36. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  37. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  38. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  39. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  40. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  41. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  42. * SUCH DAMAGE.
  43. *
  44. * @(#)err.h 8.1 (Berkeley) 6/2/93
  45. */
  46. #ifndef _ERR_H_
  47. #define _ERR_H_
  48. #include <stdlib.h>
  49. #ifdef DEBUG
  50. extern int debug;
  51. #endif
  52. /*
  53. * We define the following functions for reporting errors, warnings and debug messages:
  54. * err() - Fatal error. Pass exit code followed by static string
  55. * errx() - Fatal error. Pass exit code, format string, one or more variables
  56. * warn() - Warning. Pass static string
  57. * warnx() - Warning. Pass format string, one or more variables
  58. * dbg() - Debug. Debug level to trigger, static string
  59. * dbgx() - Debug. Debug level to trigger, format string, one or more variables
  60. * notice() - Informational only via stderr, format string, one or more variables
  61. */
  62. /* gcc accepts __FUNCTION__, but C99 says use __func__. Necessary for SunPro compiler */
  63. #if !defined(__GNUC__) && !defined(__FUNCTION__)
  64. # define __FUNCTION__ __func__
  65. #endif
  66. void notice(const char *fmt, ...);
  67. #ifdef DEBUG /* then err, errx, warn, warnx print file, func, line */
  68. #define dbg(x, y) do { \
  69. if (debug >= x) \
  70. fprintf(stderr, "DEBUG%d in %s:%s() line %d: %s\n", x, __FILE__, __FUNCTION__, __LINE__, y); \
  71. } while(0)
  72. #define dbgx(x, y, ...) do { \
  73. if (debug >= x) { \
  74. fprintf(stderr, "DEBUG%d in %s:%s() line %d: " y "\n", x, __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
  75. } \
  76. } while(0)
  77. #define warn(x) fprintf(stderr, "Warning in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, x)
  78. #define warnx(x, ...) fprintf(stderr, "Warning in %s:%s() line %d:\n" x "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__)
  79. #define err(x, y) do { \
  80. fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n%s\n", __FILE__, __FUNCTION__, __LINE__, y); \
  81. fflush(NULL); \
  82. exit(x); \
  83. } while (0)
  84. #define errx(x, y, ...) do {\
  85. fprintf(stderr, "\nFatal Error in %s:%s() line %d:\n " y "\n", __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__); \
  86. fflush(NULL); \
  87. exit(x); \
  88. } while (0)
  89. #else /* no detailed DEBUG info */
  90. /* dbg() and dbgx() become no-ops for non-DEBUG builds */
  91. #define dbg(x, y) { }
  92. #define dbgx(x, y, ...) { }
  93. #define warn(x) fprintf(stderr, "Warning: %s\n", x)
  94. #define warnx(x, ...) fprintf(stderr, "Warning: " x "\n", __VA_ARGS__)
  95. #define err(x, y) do {\
  96. fprintf(stderr, "\nFatal Error:\n%s\n", y); \
  97. fflush(NULL); \
  98. exit(x); \
  99. } while(0)
  100. #define errx(x, y, ...) do {\
  101. fprintf(stderr, "\nFatal Error: " y "\n", __VA_ARGS__); \
  102. fflush(NULL); \
  103. exit(x); \
  104. } while (0)
  105. #endif /* DEBUG */
  106. #endif /* !_ERR_H_ */