PE: Extract get_pehdr_offset() for reuse
The get_pehdr_offset() function helps skip the DOS stub in a PE file to
locate the start of the PE header. Since it can be used in multiple C
files, it is being moved to a header file.
Signed-off-by: Pingfan Liu <piliu@redhat.com>
Signed-off-by: Simon Horman <horms@kernel.org>
diff --git a/include/pe.h b/include/pe.h
index 2617074..1e1c59b 100644
--- a/include/pe.h
+++ b/include/pe.h
@@ -101,4 +101,21 @@
uint32_t flags;
};
+/*
+ * Return -1 if not PE, else offset of the PE header
+ */
+static int get_pehdr_offset(const char *buf)
+{
+ int pe_hdr_offset;
+
+ pe_hdr_offset = *((int *)(buf + 0x3c));
+ buf += pe_hdr_offset;
+ if (!!memcmp(buf, "PE\0\0", 4)) {
+ printf("Not a PE file\n");
+ return -1;
+ }
+
+ return pe_hdr_offset;
+}
+
#endif
diff --git a/kexec/kexec-uki.c b/kexec/kexec-uki.c
index 235f5a1..9888d7e 100644
--- a/kexec/kexec-uki.c
+++ b/kexec/kexec-uki.c
@@ -20,23 +20,6 @@
static int embeded_linux_format_index = -1;
static int kernel_fd = -1;
-/*
- * Return -1 if not PE, else offset of the PE header
- */
-static int get_pehdr_offset(const char *buf)
-{
- int pe_hdr_offset;
-
- pe_hdr_offset = *((int *)(buf + 0x3c));
- buf += pe_hdr_offset;
- if (!!memcmp(buf, "PE\0\0", 4)) {
- printf("Not a PE file\n");
- return -1;
- }
-
- return pe_hdr_offset;
-}
-
static int create_tmpfd(const char *template, char *buf, int buf_sz, int *tmpfd)
{
char *fname;
