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-rw-r--r--src/main/pe_get_image_meta.c196
-rw-r--r--src/main/pe_map_raw_image.c40
-rw-r--r--src/main/perk.c116
3 files changed, 0 insertions, 352 deletions
diff --git a/src/main/pe_get_image_meta.c b/src/main/pe_get_image_meta.c
deleted file mode 100644
index 350abe3..0000000
--- a/src/main/pe_get_image_meta.c
+++ /dev/null
@@ -1,196 +0,0 @@
-#include <stdint.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include <perk/perk.h>
-#include "perk_impl.h"
-
-static int pe_free_image_meta_impl (struct pe_image_meta * meta, int status)
-{
- unsigned i;
-
- if (!meta) return 0;
-
- for (i=0; i<meta->summary.num_of_implibs; i++)
- free(meta->idata[i].items);
-
- free(meta->idata);
- free(meta->sectbl);
- free(meta);
-
- return status;
-}
-
-int pe_free_image_meta (struct pe_image_meta * meta)
-{
- return pe_free_image_meta_impl(meta,0);
-}
-
-int pe_get_named_section_index (const struct pe_image_meta * m, const char * name)
-{
- int i; for (i=0; i<m->coff.num_of_sections; i++)
- if (!(strcmp(name,m->sectbl[i].name)))
- return i;
-
- return -1;
-}
-
-int pe_get_block_section_index (const struct pe_image_meta * m, const struct pe_block * block)
-{
- int i;
- uint32_t low,high;
-
- for (i=0; i<m->coff.num_of_sections; i++) {
- low = m->sectbl[i].virtual_addr;
- high = low + m->sectbl[i].virtual_size;
-
- if ((block->rva >= low) && (block->rva + block->size <= high))
- return i;
- }
-
- return -1;
-}
-
-int pe_get_image_meta (const struct pe_raw_image * image, struct pe_image_meta ** meta)
-{
- int i,j,s,status;
- struct pe_image_meta * m;
- char * base = image->addr;
-
- if (!(m = calloc(1,sizeof(*m))))
- return errno;
-
- m->ados = (struct pe_image_dos_hdr *)base;
-
- if ((status = (pe_read_dos_header(m->ados,&m->dos))))
- return pe_free_image_meta_impl(m,status);
-
- m->acoff = (struct pe_coff_file_hdr *)(base + m->dos.dos_lfanew);
-
- if ((status = (pe_read_coff_header(m->acoff,&m->coff))))
- return pe_free_image_meta_impl(m,status);
-
- m->aopt = (union pe_opt_hdr *)((char *)m->acoff + sizeof(m->coff));
-
- if ((status = (pe_read_optional_header(m->aopt,&m->opt))))
- return pe_free_image_meta_impl(m,status);
-
- m->asectbl = (struct pe_sec_hdr *)((char *)m->aopt + m->coff.size_of_opt_hdr);
-
- if (!(m->sectbl = calloc(m->coff.num_of_sections,sizeof(*(m->sectbl)))))
- return pe_free_image_meta_impl(m,status);
-
- for (i=0; i<m->coff.num_of_sections; i++)
- pe_read_section_header(&m->asectbl[i],&m->sectbl[i]);
-
- /* .edata */
- i = pe_get_named_section_index(m,".edata");
- s = pe_get_block_section_index(m,&m->opt.dirs.export_tbl);
-
- if ((i >= 0) && (i != s))
- return pe_free_image_meta_impl(m,PERK_MALFORMED_IMAGE);
-
- if (s >= 0) {
- m->hedata = &m->sectbl[s];
- m->aedata = (struct pe_export_hdr *)(base + m->sectbl[s].ptr_to_raw_data
- + m->opt.dirs.export_tbl.rva - m->sectbl[s].virtual_addr);
- } else if (i >= 0) {
- m->hedata = &m->sectbl[i];
- m->aedata = (struct pe_export_hdr *)(base + m->sectbl[i].ptr_to_raw_data);
- }
-
- if (m->aedata)
- pe_read_export_header(m->aedata,&m->edata);
-
- /* .idata */
- struct pe_import_hdr * pidata;
- struct pe_import_lookup_item * pitem;
-
- i = pe_get_named_section_index(m,".idata");
- s = pe_get_block_section_index(m,&m->opt.dirs.import_tbl);
-
- if ((i >= 0) && (i != s))
- return pe_free_image_meta_impl(m,PERK_MALFORMED_IMAGE);
-
- if (s >= 0) {
- m->hidata = &m->sectbl[s];
- m->aidata = (struct pe_import_hdr *)(base + m->sectbl[s].ptr_to_raw_data
- + m->opt.dirs.import_tbl.rva - m->sectbl[s].virtual_addr);
- } else if (i >= 0) {
- m->hidata = &m->sectbl[i];
- m->aidata = (struct pe_import_hdr *)(base + m->sectbl[i].ptr_to_raw_data);
- }
-
- if (m->aidata) {
- /* num of implibs */
- for (pidata=m->aidata; pidata->name_rva[0]; pidata++,m->summary.num_of_implibs++);
-
- /* import headers */
- if (!(m->idata = calloc(m->summary.num_of_implibs,sizeof(*(m->idata)))))
- return pe_free_image_meta_impl(m,status);
-
- for (i=0; i<m->summary.num_of_implibs; i++) {
- pe_read_import_header(&m->aidata[i],&m->idata[i]);
-
- m->idata[i].name = base + m->hidata->ptr_to_raw_data
- + m->idata[i].name_rva - m->hidata->virtual_addr;
-
- if (m->idata[i].import_lookup_tbl_rva)
- m->idata[i].aitems = (struct pe_import_lookup_item *)(base + m->hidata->ptr_to_raw_data
- + m->idata[i].import_lookup_tbl_rva - m->hidata->virtual_addr);
-
- #ifdef PERK_DEVEL
- printf("%s\n",m->idata[i].name);
- #endif
-
- /* items */
- m->idata[i].count = 0;
- if (m->idata[i].import_lookup_tbl_rva) {
- for (pitem=m->idata[i].aitems; *(uint32_t *)pitem->u.hint_name_tbl_rva; pitem++)
- m->idata[i].count++;
-
- if (!(m->idata[i].items = calloc(m->idata[i].count,sizeof(*(m->idata[i].items)))))
- return pe_free_image_meta_impl(m,status);
- }
-
- for (j=0; j<m->idata[i].count; j++) {
- if ((status = pe_read_import_lookup_item(
- &(m->idata[i].aitems[j]),
- &(m->idata[i].items[j]),
- m->opt.std.magic)))
- return pe_free_image_meta_impl(m,status);
-
- switch (m->opt.std.magic) {
- case PE_MAGIC_PE32:
- m->idata[i].items[j].flags = m->idata[i].items[j].u.import_lookup_entry_32;
- break;
-
- case PE_MAGIC_PE32_PLUS:
- m->idata[i].items[j].flags = (m->idata[i].items[j].u.import_lookup_entry_64 >> 32);
- break;
- }
-
- if (!m->idata[i].items[j].flags) {
- struct pe_hint_name_entry * pentry =
- (struct pe_hint_name_entry *)(base + m->hidata->ptr_to_raw_data
- + m->idata[i].items[j].u.hint_name_tbl_rva - m->hidata->virtual_addr);
-
- m->idata[i].items[j].name = (char *)pentry->name;
- #ifdef PERK_DEVEL
- printf("%s\n",m->idata[i].items[j].name);
- #endif
- }
- }
- }
- }
-
- /* image */
- m->image.addr = image->addr;
- m->image.size = image->size;
-
- /* all done */
- *meta = m;
- return 0;
-}
diff --git a/src/main/pe_map_raw_image.c b/src/main/pe_map_raw_image.c
deleted file mode 100644
index caf14b9..0000000
--- a/src/main/pe_map_raw_image.c
+++ /dev/null
@@ -1,40 +0,0 @@
-#include <stdint.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <perk/perk.h>
-
-int pe_map_raw_image (int fd, const char * fname, int prot, struct pe_raw_image * map)
-{
- struct stat stat;
- int nfd, ret;
-
- if ((nfd = !fd))
- fd = open(fname,O_RDONLY | O_CLOEXEC);
-
- if ((fd < 0) || (fstat(fd,&stat) < 0))
- return errno;
-
- map->size = stat.st_size;
- map->addr = mmap(0,map->size,prot,MAP_PRIVATE,fd,0);
-
- if (map->addr == MAP_FAILED) {
- map->addr = 0;
- ret = PERK_MAP_ERROR;
- } else
- ret = 0;
-
- if (nfd) close(fd);
-
- return ret;
-}
-
-int pe_unmap_raw_image (struct pe_raw_image * map)
-{
- return munmap(map->addr, map->size);
-}
diff --git a/src/main/perk.c b/src/main/perk.c
deleted file mode 100644
index 0382186..0000000
--- a/src/main/perk.c
+++ /dev/null
@@ -1,116 +0,0 @@
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <perk/perk.h>
-#include "perk_impl.h"
-
-static int perk_parse_opts(struct perk_ctx * ctx)
-{
- int i;
- char * ch;
- const char ** popt;
-
- for (i=1; i<ctx->argc; i++) {
- ch = ctx->argv[i];
-
- if (*ch == '-') {
- switch (*++ch) {
- case 'i':
- popt = &ctx->fname;
- break;
- case 'h':
- ctx->flags = PERK_HELP;
- return 0;
- default:
- ctx->status = PERK_BAD_OPT;
- return ctx->status;
- }
-
- while ((*++ch == '\t') || (*ch == ' '));
-
- if (!*ch) {
- if (++i < ctx->argc)
- *popt = ctx->argv[i];
- else
- ctx->status = PERK_BAD_OPT_VAL;
- } else
- *popt = ch;
- } else if (!ctx->fname)
- ctx->fname = ch;
- else
- ctx->status = PERK_BAD_OPT;
-
- }
-
- return ctx->status;
-}
-
-
-static int perk_map_input(struct perk_ctx * ctx)
-{
- ctx->fd = open(ctx->fname,O_RDONLY | O_CLOEXEC);
-
- if (ctx->fd < 0) {
- ctx->status = PERK_IO_ERROR;
- return ctx->status;
- }
-
- ctx->status = pe_map_raw_image(ctx->fd,0,PROT_READ,&ctx->map);
-
- return ctx->status;
-}
-
-
-static int perk_exit(struct perk_ctx * ctx)
-{
- if (ctx->map.addr)
- pe_unmap_raw_image(&ctx->map);
-
- return ctx->status;
-}
-
-
-static int perk_run(struct perk_ctx * ctx)
-{
- struct pe_image_meta * meta;
-
- if (perk_map_input(ctx))
- return perk_exit(ctx);
-
- if ((ctx->status = pe_get_image_meta(&ctx->map,&meta)))
- return perk_exit(ctx);
-
- /* pre-alpha default output */
- pe_output_export_symbols(
- meta,
- PERK_OUTPUT_FORMAT_LIST | PERK_OUTPUT_FIELD_NAME,
- stdout);
-
- ctx->status = pe_free_image_meta(meta);
-
- return perk_exit(ctx);
-}
-
-static int perk_main(int argc, char ** argv, char ** envp)
-{
- struct perk_ctx ctx = {argc,argv,envp};
-
- if (perk_parse_opts(&ctx))
- return ctx.status;
- else
- return perk_run(&ctx);
-}
-
-int main(int argc, char ** argv, char ** envp)
-{
- return perk_main(argc,argv,envp);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 10:42:13 +0000