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https://github.com/radareorg/radare2.git
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127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/* radare - LGPL - Copyright 2009-2015 - ret2libc, pancake */
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#include <stdio.h>
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#include <r_types.h>
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#include <r_util.h>
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#include <r_lib.h>
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#include <r_bin.h>
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#define R_BIN_CGC 1
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#include "bin_elf.c"
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extern struct r_bin_dbginfo_t r_bin_dbginfo_elf;
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extern struct r_bin_write_t r_bin_write_elf;
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static bool check_bytes(const ut8 *buf, ut64 length) {
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return buf && length > 4 && !memcmp (buf, CGCMAG, SCGCMAG) && buf[4] != 2;
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}
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static RBuffer* create(RBin* bin, const ut8 *code, int codelen, const ut8 *data, int datalen) {
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ut32 filesize, code_va, code_pa, phoff;
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ut32 p_start, p_phoff, p_phdr;
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ut32 p_ehdrsz, p_phdrsz;
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ut16 ehdrsz, phdrsz;
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ut32 p_vaddr, p_paddr, p_fs, p_fs2;
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ut32 baddr = 0x8048000;
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RBuffer *buf = r_buf_new ();
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#define B(x,y) r_buf_append_bytes(buf,(const ut8*)x,y)
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#define D(x) r_buf_append_ut32(buf,x)
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#define H(x) r_buf_append_ut16(buf,x)
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#define Z(x) r_buf_append_nbytes(buf,x)
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#define W(x,y,z) r_buf_write_at(buf,x,(const ut8*)y,z)
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#define WZ(x,y) p_tmp=buf->length;Z(x);W(p_tmp,y,strlen(y))
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B ("\x7F" "CGC" "\x01\x01\x01\x43", 8);
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Z (8);
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H (2); // ET_EXEC
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H (3); // e_machne = EM_I386
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D (1);
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p_start = buf->length;
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D (-1); // _start
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p_phoff = buf->length;
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D (-1); // phoff -- program headers offset
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D (0); // shoff -- section headers offset
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D (0); // flags
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p_ehdrsz = buf->length;
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H (-1); // ehdrsz
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p_phdrsz = buf->length;
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H (-1); // phdrsz
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H (1);
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H (0);
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H (0);
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H (0);
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// phdr:
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p_phdr = buf->length;
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D (1);
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D (0);
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p_vaddr = buf->length;
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D (-1); // vaddr = $$
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p_paddr = buf->length;
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D (-1); // paddr = $$
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p_fs = buf->length;
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D (-1); // filesize
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p_fs2 = buf->length;
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D (-1); // filesize
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D (5); // flags
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D (0x1000); // align
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ehdrsz = p_phdr;
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phdrsz = buf->length - p_phdr;
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code_pa = buf->length;
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code_va = code_pa + baddr;
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phoff = 0x34;//p_phdr ;
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filesize = code_pa + codelen + datalen;
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W (p_start, &code_va, 4);
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W (p_phoff, &phoff, 4);
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W (p_ehdrsz, &ehdrsz, 2);
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W (p_phdrsz, &phdrsz, 2);
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code_va = baddr; // hack
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W (p_vaddr, &code_va, 4);
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code_pa = baddr; // hack
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W (p_paddr, &code_pa, 4);
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W (p_fs, &filesize, 4);
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W (p_fs2, &filesize, 4);
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B (code, codelen);
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if (data && datalen>0) {
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//ut32 data_section = buf->length;
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eprintf ("Warning: DATA section not support for ELF yet\n");
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B (data, datalen);
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}
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return buf;
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}
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RBinPlugin r_bin_plugin_cgc = {
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.name = "cgc",
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.desc = "CGC format r_bin plugin",
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.license = "LGPL3",
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.get_sdb = &get_sdb,
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.load = &load,
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.load_bytes = &load_bytes,
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.destroy = &destroy,
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.check_bytes = &check_bytes,
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.baddr = &baddr,
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.boffset = &boffset,
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.binsym = &binsym,
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.entries = &entries,
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.sections = §ions,
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.symbols = &symbols,
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.minstrlen = 4,
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.imports = &imports,
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.info = &info,
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.fields = &fields,
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.size = &size,
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.libs = &libs,
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.relocs = &relocs,
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.dbginfo = &r_bin_dbginfo_elf,
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.create = &create,
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.patch_relocs = &patch_relocs,
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.write = &r_bin_write_elf,
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};
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