mirror of https://github.com/bol-van/zapret/
bolvan
6 years ago
30 changed files with 364 additions and 121 deletions
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@ -0,0 +1,75 @@ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "gzip.h" |
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#define ZCHUNK 16384 |
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#define BUFMIN 128 |
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#define BUFCHUNK (1024*128) |
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int z_readfile(FILE *F,char **buf,size_t *size) |
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{ |
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z_stream zs; |
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int r; |
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unsigned char in[ZCHUNK]; |
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size_t bufsize; |
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void *newbuf; |
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memset(&zs,0,sizeof(zs)); |
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*buf = NULL; |
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bufsize=*size=0; |
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r=inflateInit2(&zs,47); |
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if (r != Z_OK) return r; |
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do |
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{ |
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zs.avail_in = fread(in, 1, sizeof(in), F); |
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if (ferror(F)) |
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{ |
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r = Z_ERRNO; |
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goto zerr; |
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} |
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if (!zs.avail_in) break; |
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zs.next_in = in; |
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do |
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{ |
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if ((bufsize-*size)<BUFMIN) |
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{ |
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bufsize += BUFCHUNK; |
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newbuf = *buf ? realloc(*buf,bufsize) : malloc(bufsize); |
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if (newbuf==*buf) |
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if (!newbuf) |
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{ |
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r = Z_MEM_ERROR; |
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goto zerr; |
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} |
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*buf = newbuf; |
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} |
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zs.avail_out = bufsize - *size; |
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zs.next_out = (unsigned char*)(*buf + *size); |
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r = inflate(&zs, Z_NO_FLUSH); |
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if (r!=Z_OK && r!=Z_STREAM_END) goto zerr; |
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*size = bufsize - zs.avail_out; |
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} while (r==Z_OK && zs.avail_in); |
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} while (r==Z_OK); |
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if (*size<bufsize) |
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{ |
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// free extra space
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if (newbuf = realloc(*buf,*size)) *buf=newbuf; |
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} |
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inflateEnd(&zs); |
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return Z_OK; |
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zerr: |
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inflateEnd(&zs); |
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if (*buf) |
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{ |
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free(*buf); |
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*buf = NULL; |
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} |
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return r; |
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} |
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@ -0,0 +1,6 @@ |
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#pragma once |
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#include <stdio.h> |
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#include <zlib.h> |
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int z_readfile(FILE *F,char **buf,size_t *size); |
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@ -0,0 +1,82 @@ |
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#include <stdio.h> |
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#include "hostlist.h" |
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#include "gzip.h" |
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static bool addpool(strpool **hostlist, char **s, char *end) |
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{ |
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char *p; |
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// advance until eol lowering all chars
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for (p = *s; p<end && *p && *p!='\r' && *p != '\n'; p++) *p=tolower(*p); |
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if (!StrPoolAddStrLen(hostlist, *s, p-*s)) |
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{ |
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StrPoolDestroy(hostlist); |
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*hostlist = NULL; |
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return false; |
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} |
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// advance to the next line
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for (; p<end && (!*p || *p=='\r' || *p=='\n') ; p++); |
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*s = p; |
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return true; |
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} |
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bool LoadHostList(strpool **hostlist, char *filename) |
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{ |
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char *p, *e, s[256], *zbuf; |
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size_t zsize; |
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int ct = 0; |
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FILE *F; |
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if (*hostlist) |
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{ |
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StrPoolDestroy(hostlist); |
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*hostlist = NULL; |
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} |
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if (!(F = fopen(filename, "rb"))) |
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{ |
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fprintf(stderr, "Could not open %s\n", filename); |
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return false; |
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} |
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if (z_readfile(F,&zbuf,&zsize)==Z_OK) |
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{ |
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printf("libz compression detected. uncompressed size : %zu\n", zsize); |
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fclose(F); |
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p = zbuf; |
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e = zbuf + zsize; |
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while(p<e) |
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{ |
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if (!addpool(hostlist,&p,e)) |
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{ |
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fprintf(stderr, "Not enough memory to store host list : %s\n", filename); |
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free(zbuf); |
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return false; |
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} |
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ct++; |
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} |
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free(zbuf); |
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} |
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else |
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{ |
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fseek(F,0,SEEK_SET); |
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while (fgets(s, 256, F)) |
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{ |
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p = s; |
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if (!addpool(hostlist,&p,p+strlen(p))) |
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{ |
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fprintf(stderr, "Not enough memory to store host list : %s\n", filename); |
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fclose(F); |
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return false; |
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} |
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ct++; |
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} |
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fclose(F); |
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} |
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printf("Loaded %d hosts from %s\n", ct, filename); |
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return true; |
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} |
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@ -0,0 +1,5 @@ |
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#pragma once |
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#include "strpool.h" |
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bool LoadHostList(strpool **hostlist, char *filename); |
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