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arpa_inet.h.0p (2958B)

    

  1. '\" et
  2. .TH arpa_inet.h "0P" 2017 "IEEE/The Open Group" "POSIX Programmer's Manual"
  3. .\"
  4. .SH PROLOG
  5. This manual page is part of the POSIX Programmer's Manual.
  6. The Linux implementation of this interface may differ (consult
  7. the corresponding Linux manual page for details of Linux behavior),
  8. or the interface may not be implemented on Linux.
  9. .\"
  10. .SH NAME
  11. arpa/inet.h
  12. \(em definitions for internet operations
  13. .SH SYNOPSIS
  14. .LP
  15. .nf
  16. #include <arpa/inet.h>
  17. .fi
  18. .SH DESCRIPTION
  19. The
  20. .IR <arpa/inet.h> 
  21. header shall define the
  22. .BR in_port_t
  23. and
  24. .BR in_addr_t
  25. types as described in
  26. .IR <netinet/in.h> .
  27. .P
  28. The
  29. .IR <arpa/inet.h> 
  30. header shall define the
  31. .BR in_addr
  32. structure as described in
  33. .IR <netinet/in.h> .
  34. .P
  35. The
  36. .IR <arpa/inet.h> 
  37. header shall define the INET_ADDRSTRLEN
  38. and INET6_ADDRSTRLEN
  39. macros as described in
  40. .IR <netinet/in.h> .
  41. .P
  42. The following shall be declared as functions, or defined as macros,
  43. or both. If functions are declared, function prototypes shall be
  44. provided.
  45. .sp
  46. .RS 4
  47. .nf
  49. uint32_t htonl(uint32_t);
  50. uint16_t htons(uint16_t);
  51. uint32_t ntohl(uint32_t);
  52. uint16_t ntohs(uint16_t);
  53. .fi
  54. .P
  55. .RE
  56. .P
  57. The
  58. .IR <arpa/inet.h> 
  59. header shall define the
  60. .BR uint32_t
  61. and
  62. .BR uint16_t
  63. types as described in
  64. .IR <inttypes.h> .
  65. .P
  66. The following shall be declared as functions and may also be defined as
  67. macros. Function prototypes shall be provided.
  68. .sp
  69. .RS 4
  70. .nf
  72. in_addr_t    inet_addr(const char *);
  73. char        *inet_ntoa(struct in_addr);
  74. const char  *inet_ntop(int, const void *restrict, char *restrict,
  75.                  socklen_t);
  76. int          inet_pton(int, const char *restrict, void *restrict);
  77. .fi
  78. .P
  79. .RE
  80. .P
  81. Inclusion of the
  82. .IR <arpa/inet.h> 
  83. header may also make visible all symbols from
  84. .IR <netinet/in.h> 
  85. and
  86. .IR <inttypes.h> .
  87. .LP
  88. .IR "The following sections are informative."
  89. .SH "APPLICATION USAGE"
  90. None.
  91. .SH "RATIONALE"
  92. None.
  93. .SH "FUTURE DIRECTIONS"
  94. None.
  95. .SH "SEE ALSO"
  96. .IR "\fB<inttypes.h>\fP",
  97. .IR "\fB<netinet_in.h>\fP"
  98. .P
  99. The System Interfaces volume of POSIX.1\(hy2017,
  100. .IR "\fIhtonl\fR\^(\|)",
  101. .IR "\fIinet_addr\fR\^(\|)",
  102. .IR "\fIinet_ntop\fR\^(\|)"
  103. .\"
  104. .SH COPYRIGHT
  105. Portions of this text are reprinted and reproduced in electronic form
  106. from IEEE Std 1003.1-2017, Standard for Information Technology
  107. -- Portable Operating System Interface (POSIX), The Open Group Base
  108. Specifications Issue 7, 2018 Edition,
  109. Copyright (C) 2018 by the Institute of
  110. Electrical and Electronics Engineers, Inc and The Open Group.
  111. In the event of any discrepancy between this version and the original IEEE and
  112. The Open Group Standard, the original IEEE and The Open Group Standard
  113. is the referee document. The original Standard can be obtained online at
  114. http://www.opengroup.org/unix/online.html .
  115. .PP
  116. Any typographical or formatting errors that appear
  117. in this page are most likely
  118. to have been introduced during the conversion of the source files to
  119. man page format. To report such errors, see
  120. https://www.kernel.org/doc/man-pages/reporting_bugs.html .