1 files changed, 39 insertions, 0 deletions
diff --git a/src/lookup/section-by-name.c b/src/lookup/section-by-name.c
new file mode 100644
index 0000000..1697140
--- /dev/null
+++ b/src/lookup/section-by-name.c
@@ -0,0 +1,39 @@
+#include <string.h>
+
+#include <libelf.h>
+#include <gelf.h>
+
+#include <libelfu/libelfu.h>
+
+
+Elf_Scn* elfu_sectionByName(Elf *e, char *name)
+{
+  size_t shstrndx;
+  Elf_Scn *scn;
+
+  if (elf_getshdrstrndx(e, &shstrndx) != 0) {
+    return NULL;
+  }
+
+  scn = elf_getscn(e, 1);
+  while (scn) {
+    GElf_Shdr shdr;
+    char *curname;
+
+    if (gelf_getshdr(scn, &shdr) != &shdr) {
+      return NULL;
+    }
+
+    /* elf_strptr returns NULL if there was an error */
+    curname = elf_strptr(e, shstrndx, shdr.sh_name);
+
+    /* strcmp... but we really have no bounds on the lengths here */
+    if (!strcmp(curname, name)) {
+      return scn;
+    }
+
+    scn = elf_nextscn(e, scn);
+  }
+
+  return NULL;
+}