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GELF_GETDYN(3) Library Functions Manual GELF_GETDYN(3) NAME gelf_getdyn, gelf_update_dyn - read and update ELF dynamic entries LIBRARY ELF Access Library (libelf, -lelf) SYNOPSIS #include <gelf.h> GElf_Dyn * gelf_getdyn(Elf_Data *data, int ndx, GElf_Dyn *dyn); int gelf_update_dyn(Elf_Data *data, int ndx, GElf_Dyn *dyn); DESCRIPTION These convenience functions are used to retrieve and update class- dependent Elf32_Dyn or Elf64_Dyn information in the dynamic table of an ELF object. Argument data is an Elf_Data descriptor associated with a section of type SHT_DYNAMIC. Argument ndx is the index of the entry being retrieved or updated. The class-independent GElf_Dyn structure is described in gelf(3). Function gelf_getdyn() retrieves the class-dependent entry at index ndx in data buffer data and copies it to the destination pointed to by argument dyn after translation to class-independent form. Function gelf_update_dyn() converts the class-independent entry pointed to by argument dyn to class-dependent form, and writes it to the entry at index ndx in the data buffer described by argument data. Function gelf_update_dyn() signals an error if any of the values in the class- independent representation exceeds the representable limits of the target type. RETURN VALUES Function gelf_getdyn() returns the value of argument dyn if successful, or NULL in case of an error. Function gelf_update_dyn() returns a non- zero value if successful, or zero in case of an error. ERRORS These functions may fail with the following errors: [ELF_E_ARGUMENT] Arguments data or dyn were NULL. [ELF_E_ARGUMENT] Argument ndx was less than zero or larger than the number of entries in the data descriptor. [ELF_E_ARGUMENT] Data descriptor data was not associated with a section of type SHT_DYNAMIC. [ELF_E_RANGE] A value was not representable in the target type. SEE ALSO elf(3), elf_getdata(3), elf_getscn(3), gelf(3) NetBSD 8.0 August 29, 2006 NetBSD 8.0