Add a function to get a pointer to the start of a LAR entry.
Signed-off-by: Jordan Crouse jordan.crouse@amd.com Index: libpayload/include/libpayload.h =================================================================== --- libpayload.orig/include/libpayload.h 2008-05-13 13:40:12.000000000 -0600 +++ libpayload/include/libpayload.h 2008-05-13 15:23:18.000000000 -0600 @@ -247,6 +247,7 @@ struct larent *readlar(struct LAR *lar); void rewindlar(struct LAR *lar); int larstat(struct LAR *lar, const char *path, struct larstat *buf); +void *larfptr(struct LAR *lar, const char *filename); struct LFILE * lfopen(struct LAR *lar, const char *filename); int lfread(void *ptr, size_t size, size_t nmemb, struct LFILE *stream);
Index: libpayload/libc/lar.c =================================================================== --- libpayload.orig/libc/lar.c 2008-05-13 13:40:12.000000000 -0600 +++ libpayload/libc/lar.c 2008-05-13 13:42:59.000000000 -0600 @@ -218,6 +218,16 @@ return 0; }
+void * larfptr(struct LAR *lar, const char *filename) +{ + struct lar_header *header = get_header_by_name(lar, filename); + + if (header == NULL) + return NULL; + + return (void *) ((u8 *) header + ntohl(header->offset)); +} + struct LFILE * lfopen(struct LAR *lar, const char *filename) { struct LFILE *file;