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24.\" $Id$
25.\"
26.Dd August 15, 2006
27.Os
28.Dt ELF_GETARHDR 3
29.Sh NAME
30.Nm elf_getarhdr
31.Nd retrieve ar(1) header for an archive member
32.Sh LIBRARY
33.Lb libelf
34.Sh SYNOPSIS
35.In libelf.h
36.Ft "Elf_Arhdr *"
37.Fn elf_getarhdr "Elf *elf"
38.Sh DESCRIPTION
39The
40.Fn elf_getarhdr
41function returns a pointer to an archive member header for
42a descriptor
43.Ar elf .
44This descriptor must have been returned by a prior call to
45.Xr elf_begin 3 ,
46and must be a descriptor for a member inside an
47.Xr ar 1
48archive.
49.Pp
50Structure
51.Vt Elf_Arhdr
52includes the following members:
53.Bl -tag -width indent
54.It Vt "char *" Va ar_name
55A pointer to a null terminated string containing the translated
56name of the archive member.
57.It Vt "char *" Va ar_rawname
58A pointer to a null terminated string containing the untranslated
59name for the archive member, including all
60.Xr ar 1
61formatting characters and trailing white space.
62.It Vt time_t Va ar_date
63The timestamp associated with the member.
64.It Vt uid_t Va ar_uid
65The uid of the creator of the member.
66.It Vt gid_t Va ar_gid
67The gid of the creator of the member.
68.It Vt mode_t Va ar_mode
69The file mode of the member.
70.It Vt size_t Va ar_size
71The size of the member in bytes.
72.El
73.Sh RETURN VALUES
74This function returns a valid pointer to an
75.Vt Elf_Arhdr
76structure if successful, or NULL if an error is encountered.
77.Sh ERRORS
78Function
79.Fn elf_getarhdr
80may fail with the following errors:
81.Bl -tag -width "[ELF_E_RESOURCE]"
82.It Bq Er ELF_E_ARGUMENT
83Argument
84.Ar elf
85was NULL.
86.It Bq Er ELF_E_ARGUMENT
87Argument
88.Ar elf
89was not a descriptor for a member of an
90.Xr ar 1
91archive.
92.El
93.Sh SEE ALSO
94.Xr elf 3 ,
95.Xr elf_begin 3 ,
96.Xr elf_getarsym 3 ,
97.Xr elf_memory 3
98