xref: /freebsd/contrib/elftoolchain/libelf/elf_getphnum.3 (revision cc68614da8232d8baaca0ae0d0dd8f890f06623e)
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 3643 2018-10-14 21:09:24Z jkoshy $
25.\"
26.Dd August 5, 2009
27.Dt ELF_GETPHNUM 3
28.Os
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.Sh RETURN VALUES
54Function
55.Fn elf_getphnum
56returns a non-zero value if successful, or zero in case of an
57error.
58.Sh ERRORS
59Function
60.Fn elf_getphnum
61can fail with the following errors:
62.Bl -tag -width "[ELF_E_RESOURCE]"
63.It Bq Er ELF_E_ARGUMENT
64A NULL value was passed in for argument
65.Ar elf .
66.It Bq Er ELF_E_ARGUMENT
67Argument
68.Ar elf
69was not for an ELF file.
70.It Bq Er ELF_E_ARGUMENT
71Argument
72.Ar elf
73lacks an ELF Executable Header.
74.It Bq Er ELF_E_HEADER
75The ELF Executable Header associated with argument
76.Ar elf
77was corrupt.
78.It Bq Er ELF_E_SECTION
79The section header at index
80.Dv SHN_UNDEF
81was corrupt.
82.El
83.Sh SEE ALSO
84.Xr elf 3 ,
85.Xr elf32_getehdr 3 ,
86.Xr elf64_getehdr 3 ,
87.Xr elf_getident 3 ,
88.Xr elf_getphdrnum 3 ,
89.Xr elf_getshdrnum 3 ,
90.Xr elf_getshdrstrndx 3 ,
91.Xr gelf 3 ,
92.Xr gelf_getehdr 3
93