+/* vi: set sw=4 ts=4: */
+/*
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
#include <stdlib.h>
#include <unistd.h>
#include "libbb.h"
#include "unarchive.h" /* for external decl of check_header_gzip */
-extern void check_header_gzip(int src_fd)
+void check_header_gzip(int src_fd)
{
union {
unsigned char raw[8];
unsigned int mtime;
unsigned char xtra_flags;
unsigned char os_flags;
- } formated;
+ } formatted;
} header;
- bb_xread_all(src_fd, header.raw, 8);
+ xread(src_fd, header.raw, 8);
/* Check the compression method */
- if (header.formated.method != 8) {
- bb_error_msg_and_die("Unknown compression method %d",
- header.formated.method);
+ if (header.formatted.method != 8) {
+ bb_error_msg_and_die("unknown compression method %d",
+ header.formatted.method);
}
- if (header.formated.flags & 0x04) {
+ if (header.formatted.flags & 0x04) {
/* bit 2 set: extra field present */
unsigned char extra_short;
- extra_short = bb_xread_char(src_fd) + (bb_xread_char(src_fd) << 8);
+ extra_short = xread_char(src_fd) + (xread_char(src_fd) << 8);
while (extra_short > 0) {
/* Ignore extra field */
- bb_xread_char(src_fd);
+ xread_char(src_fd);
extra_short--;
}
}
/* Discard original name if any */
- if (header.formated.flags & 0x08) {
+ if (header.formatted.flags & 0x08) {
/* bit 3 set: original file name present */
- while(bb_xread_char(src_fd) != 0);
+ while (xread_char(src_fd) != 0);
}
/* Discard file comment if any */
- if (header.formated.flags & 0x10) {
+ if (header.formatted.flags & 0x10) {
/* bit 4 set: file comment present */
- while(bb_xread_char(src_fd) != 0);
+ while (xread_char(src_fd) != 0);
}
/* Read the header checksum */
- if (header.formated.flags & 0x02) {
- bb_xread_char(src_fd);
- bb_xread_char(src_fd);
+ if (header.formatted.flags & 0x02) {
+ xread_char(src_fd);
+ xread_char(src_fd);
}
return;