elf_getarhdr(3E) elf_getarhdr(3E)
NAME
elfgetarhdr - retrieve archive member header
SYNOPSIS
cc [flag ...] file ... -lelf [library ...]
#include <libelf.h>
ElfArhdr *elfgetarhdr(Elf *elf);
DESCRIPTION
elfgetarhdr() returns a pointer to an archive member header, if one
is available for the ELF descriptor elf. Otherwise, no archive member
header exists, an error occurred, or elf was null; elfgetarhdr() then
returns a null value. The header includes the following members.
char *arname;
timet ardate;
long aruid;
long argid;
unsigned long armode;
offt arsize;
char *arrawname;
An archive member name, available through arname, is a null-
terminated string, with the ar format control characters removed. The
arrawname member holds a null-terminated string that represents the
original name bytes in the file, including the terminating slash and
trailing blanks as specified in the archive format.
In addition to "regular" archive members, the archive format defines
some special members. All special member names begin with a slash (/),
distinguishing them from regular members (whose names may not contain
a slash). These special members have the names (arname) defined
below.
/ This is the archive symbol table. If present, it will be the
first archive member. A program may access the archive symbol
table through elfgetarsym(). The information in the symbol table
is useful for random archive processing [see elfrand(3E)].
// This member, if present, holds a string table for long archive
member names. An archive member's header contains a 16-byte area
for the name, which may be exceeded in some file systems. The
library automatically retrieves long member names from the string
table, setting arname to the appropriate value.
Under some error conditions, a member's name might not be available.
Although this causes the library to set arname to a null pointer, the
arrawname member will be set as usual.
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elf_getarhdr(3E) elf_getarhdr(3E)
SEE ALSO
elf(3E), elfbegin(3E), elfgetarsym(3E), elfrand(3E), ar(4).
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