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32 .\" @(#)confstr.3 8.1 (Berkeley) 6/4/93
33 .\" $FreeBSD: src/lib/libc/gen/confstr.3,v 1.5.2.5 2001/12/14 18:33:50 ru Exp $
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41 .Nd get string-valued configurable variables
47 .Fn confstr "int name" "char *buf" "size_t len"
50 This interface is obsoleted by
56 function provides a method for applications to get configuration
57 defined string values.
61 argument specifies the system variable to be queried.
62 Symbolic constants for each name value are found in the include file
66 argument specifies the size of the buffer referenced by the
73 is a non-null pointer, and
77 \- 1 bytes of the value are copied into the buffer
79 The copied value is always null terminated.
81 The available values are as follows:
86 Return a value for the
88 environment variable that finds all the standard utilities.
93 is not successful, \-1 is returned and
96 Otherwise, if the variable does not have a configuration defined value,
100 Otherwise, the buffer size needed to hold the entire configuration-defined
102 If this size is greater than the argument
110 function may fail and set
112 for any of the errors specified for the library functions
117 In addition, the following errors may be reported:
129 function first appeared in