xref: /freebsd/contrib/elftoolchain/libelf/elf_getphnum.3 (revision 5e53a4f90f82c4345f277dd87cc9292f26e04a29)
1.\" Copyright (c) 2006,2008 Joseph Koshy.  All rights reserved.
2.\"
3.\" Redistribution and use in source and binary forms, with or without
4.\" modification, are permitted provided that the following conditions
5.\" are met:
6.\" 1. Redistributions of source code must retain the above copyright
7.\"    notice, this list of conditions and the following disclaimer.
8.\" 2. Redistributions in binary form must reproduce the above copyright
9.\"    notice, this list of conditions and the following disclaimer in the
10.\"    documentation and/or other materials provided with the distribution.
11.\"
12.\" This software is provided by Joseph Koshy ``as is'' and
13.\" any express or implied warranties, including, but not limited to, the
14.\" implied warranties of merchantability and fitness for a particular purpose
15.\" are disclaimed.  in no event shall Joseph Koshy be liable
16.\" for any direct, indirect, incidental, special, exemplary, or consequential
17.\" damages (including, but not limited to, procurement of substitute goods
18.\" or services; loss of use, data, or profits; or business interruption)
19.\" however caused and on any theory of liability, whether in contract, strict
20.\" liability, or tort (including negligence or otherwise) arising in any way
21.\" out of the use of this software, even if advised of the possibility of
22.\" such damage.
23.\"
24.\" $Id: elf_getphnum.3 467 2009-08-05 18:18:49Z jkoshy $
25.\"
26.Dd August 5, 2009
27.Os
28.Dt ELF_GETPHNUM 3
29.Sh NAME
30.Nm elf_getphnum
31.Nd return the number of program headers in an ELF file
32.Sh LIBRARY
33.Lb libelf
34.Sh SYNOPSIS
35.In libelf.h
36.Ft int
37.Fn elf_getphnum "Elf *elf" "size_t *phnum"
38.Sh DESCRIPTION
39This function is deprecated.
40Please use function
41.Xr elf_getphdrnum 3
42instead.
43.Pp
44Function
45.Fn elf_getphnum
46retrieves the number of ELF program headers associated with descriptor
47.Ar elf
48and stores it into the location pointed to by argument
49.Ar phnum .
50.Pp
51This routine allows applications to uniformly process both normal ELF
52objects and ELF objects that use extended numbering.
53.Pp
54.Sh RETURN VALUES
55Function
56.Fn elf_getphnum
57returns a non-zero value if successful, or zero in case of an
58error.
59.Sh ERRORS
60Function
61.Fn elf_getphnum
62can fail with the following errors:
63.Bl -tag -width "[ELF_E_RESOURCE]"
64.It Bq Er ELF_E_ARGUMENT
65A NULL value was passed in for argument
66.Ar elf .
67.It Bq Er ELF_E_ARGUMENT
68Argument
69.Ar elf
70was not for an ELF file.
71.It Bq Er ELF_E_ARGUMENT
72Argument
73.Ar elf
74lacks an ELF Executable Header.
75.It Bq Er ELF_E_HEADER
76The ELF Executable Header associated with argument
77.Ar elf
78was corrupt.
79.It Bq Er ELF_E_SECTION
80The section header at index
81.Dv SHN_UNDEF
82was corrupt.
83.El
84.Sh SEE ALSO
85.Xr elf 3 ,
86.Xr elf32_getehdr 3 ,
87.Xr elf64_getehdr 3 ,
88.Xr elf_getident 3 ,
89.Xr elf_getphdrnum 3 ,
90.Xr elf_getshdrnum 3 ,
91.Xr elf_getshdrstrndx 3 ,
92.Xr gelf 3 ,
93.Xr gelf_getehdr 3
94