3 files changed, 198 insertions, 0 deletions
diff --git a/src/printing/header.c b/src/printing/header.c
new file mode 100644
index 0000000..33f7bdb
--- /dev/null
+++ b/src/printing/header.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+
+#include <libelf.h>
+#include <gelf.h>
+
+
+void printHeader(Elf *e)
+{
+  GElf_Ehdr ehdr;
+  int elfclass;
+  size_t shdrnum, shdrstrndx, phdrnum;
+
+
+  printf("ELF header:\n");
+
+
+  elfclass = gelf_getclass(e);
+  if (elfclass == ELFCLASSNONE) {
+    fprintf(stderr, "getclass() failed: %s\n", elf_errmsg(-1));
+  }
+  printf(" * %d-bit ELF object\n", elfclass == ELFCLASS32 ? 32 : 64);
+
+
+  if (!gelf_getehdr(e, &ehdr)) {
+    fprintf(stderr, "getehdr() failed: %s.", elf_errmsg(-1));
+    return;
+  }
+
+  printf(" *     type  machine  version    entry    phoff    shoff    flags   ehsize phentsize shentsize\n");
+  printf("   %8jx %8jx %8jx %8jx %8jx %8jx %8jx %8jx %9jx %9jx\n",
+          (uintmax_t) ehdr.e_type,
+          (uintmax_t) ehdr.e_machine,
+          (uintmax_t) ehdr.e_version,
+          (uintmax_t) ehdr.e_entry,
+          (uintmax_t) ehdr.e_phoff,
+          (uintmax_t) ehdr.e_shoff,
+          (uintmax_t) ehdr.e_flags,
+          (uintmax_t) ehdr.e_ehsize,
+          (uintmax_t) ehdr.e_phentsize,
+          (uintmax_t) ehdr.e_shentsize);
+
+
+  if (elf_getshdrnum(e, &shdrnum) != 0) {
+    fprintf(stderr, "getshdrnum() failed: %s\n", elf_errmsg(-1));
+  } else {
+    printf(" * (shnum):    %u\n", shdrnum);
+  }
+
+  if (elf_getshdrstrndx(e, &shdrstrndx) != 0) {
+    fprintf(stderr, "getshdrstrndx() failed: %s\n", elf_errmsg(-1));
+  } else {
+    printf(" * (shstrndx): %u\n", shdrstrndx);
+  }
+
+  if (elf_getphdrnum(e, &phdrnum) != 0) {
+    fprintf(stderr, "getphdrnum() failed: %s\n", elf_errmsg(-1));
+  } else {
+    printf(" * (phnum):    %u\n", phdrnum);
+  }
+
+  printf("\n");
+}
diff --git a/src/printing/sections.c b/src/printing/sections.c
new file mode 100644
index 0000000..6241a73
--- /dev/null
+++ b/src/printing/sections.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+
+#include <libelf.h>
+#include <gelf.h>
+
+#include <libelfu/libelfu.h>
+#include "printing.h"
+
+
+void printSegmentsWithSection(Elf *e, Elf_Scn *scn)
+{
+  GElf_Phdr phdr;
+  int i;
+  size_t n;
+
+
+  if (elf_getphdrnum(e, &n)) {
+    fprintf(stderr, "elf_getphdrnum() failed: %s\n", elf_errmsg(-1));
+    return;
+  }
+
+  for (i = 0; i < n; i++) {
+    ELFU_BOOL isInSeg;
+
+    if (gelf_getphdr(e, i, &phdr) != &phdr) {
+      fprintf(stderr, "getphdr() failed for #%d: %s\n", i, elf_errmsg(-1));
+      continue;
+    }
+
+    isInSeg = elfu_segmentContainsSection(&phdr, scn);
+    if (isInSeg == ELFU_TRUE) {
+      printf("     %d %s\n", i, segmentTypeStr(phdr.p_type));
+    }
+  }
+}
+
+
+void printSection(Elf *e, Elf_Scn *scn)
+{
+  printf("  %jd: %s\n",
+          (uintmax_t) elf_ndxscn(scn),
+          elfu_sectionName(e, scn));
+}
+
+
+void printSections(Elf *e)
+{
+  Elf_Scn *scn;
+
+  printf("Sections:\n");
+
+  scn = elf_getscn(e, 0);
+
+  while (scn) {
+    printSection(e, scn);
+    //printSegmentsWithSection(e, scn);
+
+    scn = elf_nextscn(e, scn);
+  }
+}
diff --git a/src/printing/segments.c b/src/printing/segments.c
new file mode 100644
index 0000000..6d8cac7
--- /dev/null
+++ b/src/printing/segments.c
@@ -0,0 +1,76 @@
+#include <stdio.h>
+
+#include <libelf.h>
+#include <gelf.h>
+
+#include <libelfu/libelfu.h>
+
+
+static char *ptstr[] = {"NULL", "LOAD", "DYNAMIC", "INTERP", "NOTE", "SHLIB", "PHDR", "TLS", "NUM"};
+
+
+char* segmentTypeStr(size_t pt)
+{
+  if (pt >= 0 && pt <= PT_NUM) {
+    return ptstr[pt];
+  }
+
+  return "-?-";
+}
+
+
+void printSectionsInSegment(Elf *e, GElf_Phdr *phdr)
+{
+  Elf_Scn *scn;
+
+  scn = elf_getscn(e, 0);
+
+  while (scn) {
+    ELFU_BOOL isInSeg;
+
+    isInSeg = elfu_segmentContainsSection(phdr, scn);
+    if (isInSeg == ELFU_TRUE) {
+      printf("       %10u %s\n", elf_ndxscn(scn), elfu_sectionName(e, scn));
+    }
+
+    scn = elf_nextscn(e, scn);
+  }
+}
+
+
+void printSegments(Elf *e)
+{
+  size_t i, n;
+
+  if (elf_getphdrnum(e, &n)) {
+    fprintf(stderr, "elf_getphdrnum() failed: %s.", elf_errmsg(-1));
+  }
+
+  printf("Segments:\n");
+  printf("      #   typeStr     type   offset    vaddr    paddr   filesz    memsz    flags    align\n");
+
+  for (i = 0; i < n; i++) {
+    GElf_Phdr phdr;
+
+    if (gelf_getphdr(e, i, &phdr) != &phdr) {
+      fprintf(stderr, "getphdr() failed for #%d: %s.", i, elf_errmsg(-1));
+      continue;
+    }
+
+    printf(" * %4d: %8s ", i, segmentTypeStr(phdr.p_type));
+
+    printf("%8jx %8jx %8jx %8jx %8jx %8jx %8jx %8jx\n",
+            (uintmax_t) phdr.p_type,
+            (uintmax_t) phdr.p_offset,
+            (uintmax_t) phdr.p_vaddr,
+            (uintmax_t) phdr.p_paddr,
+            (uintmax_t) phdr.p_filesz,
+            (uintmax_t) phdr.p_memsz,
+            (uintmax_t) phdr.p_flags,
+            (uintmax_t) phdr.p_align);
+
+    printSectionsInSegment(e, &phdr);
+  }
+
+  printf("\n");
+}