1GETHOSTNAME(P) POSIX Programmer's Manual GETHOSTNAME(P)
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6 gethostname - get name of current host
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9 #include <unistd.h>
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11 int gethostname(char *name, size_t namelen);
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15 The gethostname() function shall return the standard host name for the
16 current machine. The namelen argument shall specify the size of the
17 array pointed to by the name argument. The returned name shall be
18 null-terminated, except that if namelen is an insufficient length to
19 hold the host name, then the returned name shall be truncated and it is
20 unspecified whether the returned name is null-terminated.
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22 Host names are limited to {HOST_NAME_MAX} bytes.
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25 Upon successful completion, 0 shall be returned; otherwise, -1 shall be
26 returned.
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29 No errors are defined.
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31 The following sections are informative.
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34 None.
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37 None.
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40 None.
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43 None.
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46 gethostid() , uname() , the Base Definitions volume of
47 IEEE Std 1003.1-2001, <unistd.h>
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50 Portions of this text are reprinted and reproduced in electronic form
51 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
52 -- Portable Operating System Interface (POSIX), The Open Group Base
53 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
54 Electrical and Electronics Engineers, Inc and The Open Group. In the
55 event of any discrepancy between this version and the original IEEE and
56 The Open Group Standard, the original IEEE and The Open Group Standard
57 is the referee document. The original Standard can be obtained online
58 at http://www.opengroup.org/unix/online.html .
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62IEEE/The Open Group 2003 GETHOSTNAME(P)