dirfile_madd_spec(3)

1dirfile_add_spec(3)                 GETDATA                dirfile_add_spec(3)
2
3
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NAME

6       dirfile_add_spec, dirfile_madd_spec — add a field to a dirfile
7

SYNOPSIS

9       #include <getdata.h>
10
11       int dirfile_add_spec(DIRFILE *dirfile, const char *line, int
12              fragment_index);
13
14       int dirfile_madd_spec(DIRFILE *dirfile, const char *line, const char
15              *parent);
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DESCRIPTION

18       The  dirfile_add_spec()  function adds the field described by the field
19       specification line in line to the dirfile specified  by  dirfile.   The
20       dirfile_madd_spec() function behaves similarly, but adds the field as a
21       metafield under the field indicated by the field parent.  Field  speci‐
22       fication  lines  are  described  in detail in dirfile-format(5).  Since
23       Standards Version 7 (see dirfile(5)) permits specifying metafield with‐
24       out the use of the /META directive, dirfile_add_spec() may also be used
25       to add metafields, by specifying the metafield's full field code.   See
26       dirfile-format(5) for full details.
27
28       When using dirfile_madd_spec(), line should only contain a field speci‐
29       fication, and not a /META directive.
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31       Passing these functions a directive line instead of a field  specifica‐
32       tion  line  will  result in a syntax error.  These functions never call
33       the registered parser callback function, even if line contains a syntax
34       error.
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36

RETURN VALUE

38       On  success,  dirfile_add_spec()  and  dirfile_madd_spec() return zero.
39       On error, -1 is returned and the dirfile error is set to a non-zero er‐
40       ror value.  Possible error values are:
41
42       GD_E_ACCMODE
43               The specified dirfile was opened read-only.
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45       GD_E_ALLOC
46               The library was unable to allocate memory.
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48       GD_E_BAD_CODE
49               The  parent  field  code  was  not  found,  or  was  already  a
50               metafield.
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52       GD_E_BAD_DIRFILE
53               The supplied dirfile was invalid.
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55       GD_E_BAD_INDEX
56               The fragment_index argument was out of range.
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58       GD_E_FORMAT
59               A syntax error was encountered in line.
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61       GD_E_PROTECTED
62               The metadata of the fragment was protected  from  change.   Or,
63               the  creation  of a RAW field was attempted and the data of the
64               fragment was protected.
65
66       GD_E_RAW_IO
67               An I/O error occurred while creating an empty binary file to be
68               associated with a newly added RAW field.
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70       GD_E_UNKNOWN_ENCODING
71               The  encoding  scheme  of the specified format file fragment is
72               not known to the library.  As a result, the library was  unable
73               to  create  an  empty binary file to be associated with a newly
74               added RAW field.
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76       GD_E_UNSUPPORTED
77               The encoding scheme of the specified format file fragment  does
78               not support creating an empty binary file to be associated with
79               a newly added RAW field.
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81       The dirfile error may be retrieved by calling get_error(3).  A descrip‐
82       tive error string for the last error encountered can be obtained from a
83       call to get_error_string(3).
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NAME

SYNOPSIS

DESCRIPTION

RETURN VALUE

SEE ALSO