elf_strtab.c File Reference

#include "elf_strtab.h"
#include "elf.h"

Go to the source code of this file.

Functions
RZ_BORROW const char *Elf_()	rz_bin_elf_strtab_get (RZ_NONNULL RzBinElfStrtab *strtab, ut64 index)
RZ_OWN RzBinElfStrtab *Elf_()	rz_bin_elf_strtab_new (RZ_NONNULL ELFOBJ *bin, ut64 offset, ut64 size)
RZ_OWN char *Elf_()	rz_bin_elf_strtab_get_dup (RZ_NONNULL RzBinElfStrtab *strtab, ut64 index)
bool Elf_()	rz_bin_elf_strtab_has_index (RZ_NONNULL RzBinElfStrtab *strtab, ut64 index)
void Elf_()	rz_bin_elf_strtab_free (RzBinElfStrtab *ptr)

Function Documentation

rz_bin_elf_strtab_free()

void Elf_() rz_bin_elf_strtab_free

(

RzBinElfStrtab *

ptr

)

Definition at line 72 of file elf_strtab.c.

                                                       {
    if (!ptr) {
        return;
    }
 
    free(ptr->data);
    free(ptr);
}

References free().

Referenced by get_section_elf_symbols(), rz_bin_elf_free(), and rz_bin_elf_strtab_new().

rz_bin_elf_strtab_get()

RZ_BORROW const char* Elf_() rz_bin_elf_strtab_get	(	RZ_NONNULL RzBinElfStrtab *	strtab,
		ut64	index
	)

Definition at line 8 of file elf_strtab.c.

                                                                                                 {
    rz_return_val_if_fail(strtab, false);
 
    if (!Elf_(rz_bin_elf_strtab_has_index)(strtab, index)) {
        return NULL;
    }
 
    return strtab->data + index;
}

References Elf_, NULL, rz_bin_elf_strtab_has_index(), and rz_return_val_if_fail.

Referenced by get_vernaux_entry_sdb(), get_verneed_entry_sdb_aux(), get_versym_entry_sdb_from_verdef(), and get_versym_entry_sdb_from_verneed().

rz_bin_elf_strtab_get_dup()

RZ_OWN char* Elf_() rz_bin_elf_strtab_get_dup	(	RZ_NONNULL RzBinElfStrtab *	strtab,
		ut64	index
	)

Definition at line 52 of file elf_strtab.c.

                                                                                            {
    rz_return_val_if_fail(strtab, NULL);
 
    if (!Elf_(rz_bin_elf_strtab_has_index)(strtab, index)) {
        return NULL;
    }
 
    char *result = strdup(strtab->data + index);
    if (!result) {
        return NULL;
    }
 
    return result;
}

References Elf_, NULL, rz_bin_elf_strtab_has_index(), rz_return_val_if_fail, and strdup().

Referenced by rz_bin_elf_get_libs(), rz_bin_elf_get_rpath(), set_elf_section_name(), and set_elf_symbol_name().

rz_bin_elf_strtab_has_index()

bool Elf_() rz_bin_elf_strtab_has_index	(	RZ_NONNULL RzBinElfStrtab *	strtab,
		ut64	index
	)

Definition at line 67 of file elf_strtab.c.

                                                                                      {
    rz_return_val_if_fail(strtab, false);
    return index < strtab->size;
}

References rz_return_val_if_fail.

Referenced by rz_bin_elf_strtab_get(), rz_bin_elf_strtab_get_dup(), and set_elf_section_name().

rz_bin_elf_strtab_new()

RZ_OWN RzBinElfStrtab* Elf_() rz_bin_elf_strtab_new	(	RZ_NONNULL ELFOBJ *	bin,
		ut64	offset,
		ut64	size
	)

Definition at line 18 of file elf_strtab.c.

                                                                                                   {
    rz_return_val_if_fail(bin, NULL);
 
    if (!size || !Elf_(rz_bin_elf_check_array)(bin, offset, size, sizeof(ut8))) {
        RZ_LOG_WARN("Invalid strtab at 0x%" PFMT64x " (check array failed).\n", offset);
        return NULL;
    }
 
    RzBinElfStrtab *result = RZ_NEW(RzBinElfStrtab);
    if (!result) {
        return NULL;
    }
 
    result->size = size;
    result->data = RZ_NEWS(char, size);
    if (!result->data) {
        Elf_(rz_bin_elf_strtab_free)(result);
        return NULL;
    }
 
    if (rz_buf_read_at(bin->b, offset, (ut8 *)result->data, size) < 0) {
        Elf_(rz_bin_elf_strtab_free)(result);
        return NULL;
    }
 
    if (result->data[0] != '\0' || result->data[size - 1] != '\0') {
        RZ_LOG_WARN("String table at 0x%" PFMT64x " should start and end by a NULL byte", offset);
        Elf_(rz_bin_elf_strtab_free)(result);
        return NULL;
    }
 
    return result;
}

References rz_bin_elf_strtab::data, Elf_, NULL, PFMT64x, rz_bin_elf_check_array(), rz_bin_elf_strtab_free(), rz_buf_read_at(), RZ_LOG_WARN, RZ_NEW, RZ_NEWS, rz_return_val_if_fail, and rz_bin_elf_strtab::size.

Referenced by get_section_elf_symbols(), init_dynstr_aux(), and init_shstrtab_aux().