xref: /freebsd/contrib/elftoolchain/libelf/elf_getshdrnum.3 (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
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24.\" $Id: elf_getshdrnum.3 467 2009-08-05 18:18:49Z jkoshy $
25.\"
26.Dd August 4, 2009
27.Os
28.Dt ELF_GETSHDRNUM 3
29.Sh NAME
30.Nm elf_getshdrnum
31.Nd return the number of sections in an ELF file
32.Sh LIBRARY
33.Lb libelf
34.Sh SYNOPSIS
35.In libelf.h
36.Ft int
37.Fn elf_getshdrnum "Elf *elf" "size_t *shnum"
38.Sh DESCRIPTION
39Function
40.Fn elf_getshdrnum
41retrieves the number of ELF sections associated with descriptor
42.Ar elf
43and stores it into the location pointed to by argument
44.Ar shnum .
45.Pp
46This routine allows applications to uniformly process both normal ELF
47objects, and ELF objects that use extended section numbering.
48.Pp
49.Sh RETURN VALUES
50Function
51.Fn elf_getshdrnum
52returns zero value if successful, or -1 in case of an error.
53.Sh ERRORS
54Function
55.Fn elf_getshdrnum
56can fail with the following errors:
57.Bl -tag -width "[ELF_E_RESOURCE]"
58.It Bq Er ELF_E_ARGUMENT
59A NULL value was passed in for argument
60.Ar elf .
61.It Bq Er ELF_E_ARGUMENT
62Argument
63.Ar elf
64was not for an ELF file.
65.It Bq Er ELF_E_ARGUMENT
66Argument
67.Ar elf
68lacks an ELF Executable header.
69.El
70.Sh SEE ALSO
71.Xr elf 3 ,
72.Xr elf32_getehdr 3 ,
73.Xr elf64_getehdr 3 ,
74.Xr elf_getident 3 ,
75.Xr elf_getphdrnum 3 ,
76.Xr elf_getshdrstrndx 3 ,
77.Xr gelf 3 ,
78.Xr gelf_getehdr 3
79