wok-6.x rev 936
Linux: lzma catch eof
author | Pascal Bellard <pascal.bellard@slitaz.org> |
---|---|
date | Fri Jun 20 21:49:23 2008 +0000 (2008-06-20) |
parents | c461b55e458e |
children | 72fa50265748 |
files | linux/stuff/linux-lzma-2.6.25.5.u |
line diff
1.1 --- a/linux/stuff/linux-lzma-2.6.25.5.u Fri Jun 20 16:13:32 2008 +0000 1.2 +++ b/linux/stuff/linux-lzma-2.6.25.5.u Fri Jun 20 21:49:23 2008 +0000 1.3 @@ -1444,7 +1444,7 @@ 1.4 1.5 --- linux-2.6.25.5/lib/decompress_unlzma.c 1.6 +++ linux-2.6.25.5/lib/decompress_unlzma.c 1.7 -@@ -0,0 +1,608 @@ 1.8 +@@ -0,0 +1,616 @@ 1.9 +/* Lzma decompressor for Linux kernel. Shamelessly snarfed 1.10 + * from busybox 1.1.1 1.11 + * 1.12 @@ -1571,11 +1571,15 @@ 1.13 +/* Called twice: once at startup and once in rc_normalize() */ 1.14 +static void rc_read(rc_t * rc) 1.15 +{ 1.16 -+ rc->buffer_size = rc->fill((char*)rc->buffer, LZMA_IOBUF_SIZE); 1.17 -+ if (rc->buffer_size <= 0) 1.18 -+ error("unexpected EOF"); 1.19 -+ rc->ptr = rc->buffer; 1.20 -+ rc->buffer_end = rc->buffer + rc->buffer_size; 1.21 ++ if (!rc->buffer_size) return; 1.22 ++ if (rc->fill) { 1.23 ++ rc->buffer_size = rc->fill((char*)rc->buffer, LZMA_IOBUF_SIZE); 1.24 ++ rc->ptr = rc->buffer; 1.25 ++ rc->buffer_end = rc->buffer + rc->buffer_size; 1.26 ++ if (rc->buffer_size > 0) return; 1.27 ++ } 1.28 ++ error("unexpected EOF"); 1.29 ++ rc->buffer_size = 0; 1.30 +} 1.31 + 1.32 +/* Called once */ 1.33 @@ -1797,8 +1801,10 @@ 1.34 + } 1.35 + } 1.36 + 1.37 -+ if (header.pos >= (9 * 5 * 5)) 1.38 ++ if (header.pos >= (9 * 5 * 5)) { 1.39 + error("bad header"); 1.40 ++ return -1; 1.41 ++ } 1.42 + 1.43 + mi = header.pos / 9; 1.44 + lc = header.pos % 9; 1.45 @@ -1843,13 +1849,13 @@ 1.46 + int match_byte; 1.47 + 1.48 + pos = buffer_pos - rep0; 1.49 -+ if (writebb) { 1.50 -+ while (pos >= header.dict_size) 1.51 -+ pos += header.dict_size; 1.52 -+ if(pos >= bufsize) { 1.53 -+ goto fail; 1.54 -+ } 1.55 ++ 1.56 ++ while (pos >= header.dict_size) 1.57 ++ pos += header.dict_size; 1.58 ++ if(pos >= bufsize) { 1.59 ++ goto fail; 1.60 + } 1.61 ++ 1.62 + match_byte = buffer[pos]; 1.63 + do { 1.64 + int bit; 1.65 @@ -1903,15 +1909,16 @@ 1.66 + 1.67 + state = state < LZMA_NUM_LIT_STATES ? 9 : 11; 1.68 + pos = buffer_pos - rep0; 1.69 -+ if (writebb) { 1.70 -+ while (pos >= header.dict_size) 1.71 -+ pos += header.dict_size; 1.72 -+ if(pos >= bufsize) { 1.73 -+ goto fail; 1.74 -+ } 1.75 ++ 1.76 ++ while (pos >= header.dict_size) 1.77 ++ pos += header.dict_size; 1.78 ++ if(pos >= bufsize) { 1.79 ++ goto fail; 1.80 + } 1.81 ++ 1.82 + previous_byte = buffer[pos]; 1.83 + store_previous_byte: 1.84 ++ if (!rc.buffer_size) goto eof; 1.85 + buffer[buffer_pos++] = previous_byte; 1.86 + if (writebb && buffer_pos == header.dict_size) { 1.87 + buffer_pos = 0; 1.88 @@ -2018,15 +2025,16 @@ 1.89 + 1.90 + len += LZMA_MATCH_MIN_LEN; 1.91 + 1.92 ++ if (!rc.buffer_size) goto eof; 1.93 + do { 1.94 + pos = buffer_pos - rep0; 1.95 -+ if (writebb) { 1.96 -+ while (pos >= header.dict_size) 1.97 -+ pos += header.dict_size; 1.98 -+ if(pos >= bufsize) { 1.99 -+ goto fail; 1.100 -+ } 1.101 ++ 1.102 ++ while (pos >= header.dict_size) 1.103 ++ pos += header.dict_size; 1.104 ++ if(pos >= bufsize) { 1.105 ++ goto fail; 1.106 + } 1.107 ++ 1.108 + previous_byte = buffer[pos]; 1.109 + buffer[buffer_pos++] = previous_byte; 1.110 + if (writebb && buffer_pos == header.dict_size) { 1.111 @@ -2038,7 +2046,7 @@ 1.112 + } while (len != 0 && (global_pos + buffer_pos) < header.dst_size); 1.113 + } 1.114 + } 1.115 -+ 1.116 ++ eof: 1.117 + if (writebb) { 1.118 + writebb((char*)buffer, buffer_pos); 1.119 + if(posp) {