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#include <linux/zlib.h>
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/* bits taken from ppc */
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extern void *avail_ram, *end_avail;
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void *zalloc(unsigned size)
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size = (size + 7) & -8;
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if (avail_ram > end_avail) {
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//puts("oops... out of memory\n");
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void gunzip (void *dst, int dstlen, unsigned char *src, int *lenp)
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if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
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//puts("bad gzipped data\n");
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if ((flags & EXTRA_FIELD) != 0)
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i = 12 + src[10] + (src[11] << 8);
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if ((flags & ORIG_NAME) != 0)
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if ((flags & COMMENT) != 0)
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if ((flags & HEAD_CRC) != 0)
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//puts("gunzip: ran out of data in header\n");
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s.workspace = zalloc(zlib_inflate_workspacesize());
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r = zlib_inflateInit2(&s, -MAX_WBITS);
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//puts("inflateInit2 returned "); puthex(r); puts("\n");
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s.avail_in = *lenp - i;
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r = zlib_inflate(&s, Z_FINISH);
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if (r != Z_OK && r != Z_STREAM_END) {
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//puts("inflate returned "); puthex(r); puts("\n");
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*lenp = s.next_out - (unsigned char *) dst;