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#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include <libelf.h>
#include <gelf.h>
#include <libelfu/libelfu.h>
#include "elfhandle.h"
#include "options.h"
#include "printing.h"
int main(int argc, char **argv)
{
CLIOpts opts = { 0 };
ELFHandles hIn = { 0 };
ELFHandles hOut = { 0 };
int exitval = EXIT_SUCCESS;
/* Is libelf alive and well? */
if (elf_version(EV_CURRENT) == EV_NONE) {
fprintf(stderr, "libelf init error: %s\n", elf_errmsg(-1));
}
/* Parse and validate user input */
parseOptions(&opts, argc, argv);
/* Open input/output files */
openElf(&hIn, opts.fnInput, ELF_C_READ);
if (!hIn.e) {
exitval = EXIT_FAILURE;
goto EXIT;
}
if (opts.fnOutput) {
openElf(&hOut, opts.fnOutput, ELF_C_WRITE);
if (!hOut.e) {
exitval = EXIT_FAILURE;
goto EXIT;
}
}
/* Now that we have a (hopefully) sane environment, execute commands */
if (opts.printHeader) {
printHeader(hIn.e);
}
if (opts.printSegments) {
printSegments(hIn.e);
}
if (opts.printSections) {
printSections(hIn.e);
}
/* Copy the input ELF to the output file if the latter is specified */
if (opts.fnOutput) {
ElfuElf *me;
me = elfu_mFromElf(hIn.e);
if (me) {
printf("Model successfully loaded.\n");
elfu_mCheck(me);
printf("Input model checked.\n");
if (opts.expandNobitsOffs) {
elfu_mExpandNobits(me, opts.expandNobitsOffs);
}
if (opts.insertBeforeSz) {
elfu_mInsertBefore(me, opts.insertBeforeOffs, opts.insertBeforeSz);
}
if (opts.insertAfterSz) {
elfu_mInsertAfter(me, opts.insertAfterOffs, opts.insertAfterSz);
}
elfu_mCheck(me);
printf("Output model checked.\n");
elfu_mToElf(me, hOut.e);
printf("Model converted to ELF, ready to be written.\n");
} else {
printf("Failed to load model.\n");
}
}
EXIT:
if (hOut.e) {
if (elf_update(hOut.e, ELF_C_WRITE) < 0) {
fprintf(stderr, "elf_update() failed: %s\n", elf_errmsg(-1));
}
closeElf(&hOut);
}
if (hIn.e) {
closeElf(&hIn);
}
return (exitval);
}
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