diff options
Diffstat (limited to 'lib/gunzip.c')
-rw-r--r-- | lib/gunzip.c | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/lib/gunzip.c b/lib/gunzip.c deleted file mode 100644 index c41568afd6..0000000000 --- a/lib/gunzip.c +++ /dev/null @@ -1,85 +0,0 @@ -#include <common.h> -#include <zlib.h> -#include <malloc.h> - -#define ZALLOC_ALIGNMENT 16 - -static void *zalloc(void *x, unsigned items, unsigned size) -{ - void *p; - - size *= items; - size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1); - - p = malloc (size); - - return (p); -} - -static void zfree(void *x, void *addr, unsigned nb) -{ - free (addr); -} - -#define HEAD_CRC 2 -#define EXTRA_FIELD 4 -#define ORIG_NAME 8 -#define COMMENT 0x10 -#define RESERVED 0xe0 - -#define DEFLATED 8 - -int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp) -{ - z_stream s; - int r, i, flags; - - /* skip header */ - i = 10; - flags = src[3]; - if (src[2] != DEFLATED || (flags & RESERVED) != 0) { - puts ("Error: Bad gzipped data\n"); - return (-1); - } - if ((flags & EXTRA_FIELD) != 0) - i = 12 + src[10] + (src[11] << 8); - if ((flags & ORIG_NAME) != 0) - while (src[i++] != 0) - ; - if ((flags & COMMENT) != 0) - while (src[i++] != 0) - ; - if ((flags & HEAD_CRC) != 0) - i += 2; - if (i >= *lenp) { - puts ("Error: gunzip out of data in header\n"); - return (-1); - } - - s.zalloc = zalloc; - s.zfree = zfree; -#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) - s.outcb = (cb_func)WATCHDOG_RESET; -#else - s.outcb = Z_NULL; -#endif /* CONFIG_HW_WATCHDOG */ - - r = inflateInit2(&s, -MAX_WBITS); - if (r != Z_OK) { - printf ("Error: inflateInit2() returned %d\n", r); - return (-1); - } - s.next_in = src + i; - s.avail_in = *lenp - i; - s.next_out = dst; - s.avail_out = dstlen; - r = inflate(&s, Z_FINISH); - if (r != Z_OK && r != Z_STREAM_END) { - printf ("Error: inflate() returned %d\n", r); - return (-1); - } - *lenp = s.next_out - (unsigned char *) dst; - inflateEnd(&s); - - return (0); -} |