elf_strptr(3E)

make a string pointer

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

NAME

elf_strptr - make a string pointer

SYNOPSIS

cc [flag ...] file ...  -lelf [library ...]

#include <libelf.h>

char *elf_strptr(Elf *elf, size_t section, size_t offset);

DESCRIPTION

This function converts a string section offset to a string pointer. elf identifies the file in which the string section resides, and section gives the section table index for the strings. elf_strptr normally returns a pointer to a string, but it returns a null pointer when elf is null, section is invalid or is not a section of type SHT_STRTAB, the section data cannot be obtained, offset is invalid, or an error occurs.

EXAMPLE

A prototype for retrieving section names appears below.  The
file  header  specifies the section name string table in the
e_shstrndx member.  The following  code  loops  through  the
sections, printing their names.
     if ((ehdr = elf32_getehdr(elf)) == 0)
     {
             /* handle the error */
             return;
     }
     ndx = ehdr->e_shstrndx;
     scn = 0;
     while ((scn = elf_nextscn(elf, scn)) != 0)
     {
             char    *name = 0;
             if ((shdr = elf32_getshdr(scn)) != 0)
               name = elf_strptr(elf, ndx, (size_t)shdr->sh_name);
             printf("'%s'\n", name? name: "(null)");
     }

NOTE