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Changes In Branch dbhash Excluding Merge-Ins
This is equivalent to a diff from 2091a4c9 to fb276815
2016-06-08
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14:04 | Add the "dbhash.exe" utility program that computes a SHA1 hash over the invariant content of an SQLite database file. Free space in the file, the page size, auto_vacuum status, text encoding, and so forth do not change the hash. Only the content matters. (check-in: f48a4ad3 user: drh tags: trunk) | |
13:59 | Fix an undersized buffer in the SHA1 implementation. (Closed-Leaf check-in: fb276815 user: drh tags: dbhash) | |
13:49 | Fix the dbhash utility so that it ignores the root page number when hashing the sqlite_master table. Add new command-line options. Add the ability to hash multiple databases with a single command. (check-in: 44f157e0 user: drh tags: dbhash) | |
01:03 | An initial attempt at a "dbhash" command-line utility. (check-in: 2247649c user: drh tags: dbhash) | |
2016-06-07
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20:25 | Fix the walcrash4.test test module so that it works on windows. (check-in: 2091a4c9 user: drh tags: trunk) | |
2016-06-06
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20:36 | In winFullPathname, translate '/X:' to 'X:' before doing anything else. (check-in: e404ad70 user: mistachkin tags: trunk) | |
Changes to Makefile.in.
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535 536 537 538 539 540 541 | # executables needed for testing # TESTPROGS = \ testfixture$(TEXE) \ sqlite3$(TEXE) \ sqlite3_analyzer$(TEXE) \ | | > | 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 | # executables needed for testing # TESTPROGS = \ testfixture$(TEXE) \ sqlite3$(TEXE) \ sqlite3_analyzer$(TEXE) \ sqldiff$(TEXE) \ dbhash$(TEXE) # Databases containing fuzzer test cases # FUZZDATA = \ $(TOP)/test/fuzzdata1.db \ $(TOP)/test/fuzzdata2.db \ $(TOP)/test/fuzzdata3.db \ |
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586 587 588 589 590 591 592 593 594 595 596 597 598 599 | $(LTLINK) $(READLINE_FLAGS) $(SHELL_OPT) -o $@ \ $(TOP)/src/shell.c sqlite3.c \ $(LIBREADLINE) $(TLIBS) -rpath "$(libdir)" sqldiff$(TEXE): $(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h $(LTLINK) -o $@ $(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS) scrub$(TEXE): $(TOP)/ext/misc/scrub.c sqlite3.o $(LTLINK) -o $@ -I. -DSCRUB_STANDALONE \ $(TOP)/ext/misc/scrub.c sqlite3.o $(TLIBS) srcck1$(BEXE): $(TOP)/tool/srcck1.c $(BCC) -o srcck1$(BEXE) $(TOP)/tool/srcck1.c | > > > | 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 | $(LTLINK) $(READLINE_FLAGS) $(SHELL_OPT) -o $@ \ $(TOP)/src/shell.c sqlite3.c \ $(LIBREADLINE) $(TLIBS) -rpath "$(libdir)" sqldiff$(TEXE): $(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h $(LTLINK) -o $@ $(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS) dbhash$(TEXE): $(TOP)/tool/dbhash.c sqlite3.c sqlite3.h $(LTLINK) -o $@ $(TOP)/tool/dbhash.c sqlite3.c $(TLIBS) scrub$(TEXE): $(TOP)/ext/misc/scrub.c sqlite3.o $(LTLINK) -o $@ -I. -DSCRUB_STANDALONE \ $(TOP)/ext/misc/scrub.c sqlite3.o $(TLIBS) srcck1$(BEXE): $(TOP)/tool/srcck1.c $(BCC) -o srcck1$(BEXE) $(TOP)/tool/srcck1.c |
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1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 | rm -f sqlite-*-output.vsix rm -f mptester mptester.exe rm -f rbu rbu.exe rm -f srcck1 srcck1.exe rm -f fuzzershell fuzzershell.exe rm -f fuzzcheck fuzzcheck.exe rm -f sqldiff sqldiff.exe rm -f fts5.* fts5parse.* distclean: clean rm -f config.h config.log config.status libtool Makefile sqlite3.pc # # Windows section | > | 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 | rm -f sqlite-*-output.vsix rm -f mptester mptester.exe rm -f rbu rbu.exe rm -f srcck1 srcck1.exe rm -f fuzzershell fuzzershell.exe rm -f fuzzcheck fuzzcheck.exe rm -f sqldiff sqldiff.exe rm -f dbhash dbhash.exe rm -f fts5.* fts5parse.* distclean: clean rm -f config.h config.log config.status libtool Makefile sqlite3.pc # # Windows section |
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Changes to Makefile.msc.
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1374 1375 1376 1377 1378 1379 1380 | # executables needed for testing # TESTPROGS = \ testfixture.exe \ $(SQLITE3EXE) \ sqlite3_analyzer.exe \ | | > | 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 | # executables needed for testing # TESTPROGS = \ testfixture.exe \ $(SQLITE3EXE) \ sqlite3_analyzer.exe \ sqldiff.exe \ dbhash.exe # Databases containing fuzzer test cases # FUZZDATA = \ $(TOP)\test\fuzzdata1.db \ $(TOP)\test\fuzzdata2.db \ $(TOP)\test\fuzzdata3.db \ |
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1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 | $(LTLINK) $(SHELL_COMPILE_OPTS) $(READLINE_FLAGS) $(TOP)\src\shell.c $(SHELL_CORE_SRC) \ /link $(SQLITE3EXEPDB) $(LDFLAGS) $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS) # <<mark>> sqldiff.exe: $(TOP)\tool\sqldiff.c $(SQLITE3C) $(SQLITE3H) $(LTLINK) $(NO_WARN) $(TOP)\tool\sqldiff.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) scrub.exe: $(TOP)\ext\misc\scrub.c $(SQLITE3C) $(SQLITE3H) $(LTLINK) $(NO_WARN) $(TOP)\ext\misc\scrub.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) srcck1.exe: $(TOP)\tool\srcck1.c $(BCC) $(NO_WARN) -Fe$@ $(TOP)\tool\srcck1.c sourcetest: srcck1.exe sqlite3.c | > > > | 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 | $(LTLINK) $(SHELL_COMPILE_OPTS) $(READLINE_FLAGS) $(TOP)\src\shell.c $(SHELL_CORE_SRC) \ /link $(SQLITE3EXEPDB) $(LDFLAGS) $(LTLINKOPTS) $(SHELL_LINK_OPTS) $(LTLIBPATHS) $(LIBRESOBJS) $(LIBREADLINE) $(LTLIBS) $(TLIBS) # <<mark>> sqldiff.exe: $(TOP)\tool\sqldiff.c $(SQLITE3C) $(SQLITE3H) $(LTLINK) $(NO_WARN) $(TOP)\tool\sqldiff.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) dbhash.exe: $(TOP)\tool\dbhash.c $(SQLITE3C) $(SQLITE3H) $(LTLINK) $(NO_WARN) $(TOP)\tool\dbhash.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) scrub.exe: $(TOP)\ext\misc\scrub.c $(SQLITE3C) $(SQLITE3H) $(LTLINK) $(NO_WARN) $(TOP)\ext\misc\scrub.c $(SQLITE3C) /link $(LDFLAGS) $(LTLINKOPTS) srcck1.exe: $(TOP)\tool\srcck1.c $(BCC) $(NO_WARN) -Fe$@ $(TOP)\tool\srcck1.c sourcetest: srcck1.exe sqlite3.c |
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2101 2102 2103 2104 2105 2106 2107 | del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe 2>NUL del /Q mptester.exe wordcount.exe rbu.exe srcck1.exe 2>NUL del /Q sqlite3.c sqlite3-*.c 2>NUL del /Q sqlite3rc.h 2>NUL del /Q shell.c sqlite3ext.h sqlite3session.h 2>NUL del /Q sqlite3_analyzer.exe sqlite3_analyzer.c 2>NUL del /Q sqlite-*-output.vsix 2>NUL | | | 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 | del /Q showjournal.exe showstat4.exe showwal.exe speedtest1.exe 2>NUL del /Q mptester.exe wordcount.exe rbu.exe srcck1.exe 2>NUL del /Q sqlite3.c sqlite3-*.c 2>NUL del /Q sqlite3rc.h 2>NUL del /Q shell.c sqlite3ext.h sqlite3session.h 2>NUL del /Q sqlite3_analyzer.exe sqlite3_analyzer.c 2>NUL del /Q sqlite-*-output.vsix 2>NUL del /Q fuzzershell.exe fuzzcheck.exe sqldiff.exe dbhash.exe 2>NUL del /Q fts5.* fts5parse.* 2>NUL # <</mark>> |
Changes to main.mk.
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447 448 449 450 451 452 453 | # executables needed for testing # TESTPROGS = \ testfixture$(EXE) \ sqlite3$(EXE) \ sqlite3_analyzer$(EXE) \ | | > | 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 | # executables needed for testing # TESTPROGS = \ testfixture$(EXE) \ sqlite3$(EXE) \ sqlite3_analyzer$(EXE) \ sqldiff$(EXE) \ dbhash$(EXE) # Databases containing fuzzer test cases # FUZZDATA = \ $(TOP)/test/fuzzdata1.db \ $(TOP)/test/fuzzdata2.db \ $(TOP)/test/fuzzdata3.db \ |
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483 484 485 486 487 488 489 490 491 492 493 494 495 496 | sqlite3$(EXE): $(TOP)/src/shell.c libsqlite3.a sqlite3.h $(TCCX) $(READLINE_FLAGS) -o sqlite3$(EXE) $(SHELL_OPT) \ $(TOP)/src/shell.c libsqlite3.a $(LIBREADLINE) $(TLIBS) $(THREADLIB) sqldiff$(EXE): $(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h $(TCCX) -o sqldiff$(EXE) -DSQLITE_THREADSAFE=0 \ $(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS) $(THREADLIB) scrub$(EXE): $(TOP)/ext/misc/scrub.c sqlite3.o $(TCC) -I. -DSCRUB_STANDALONE -o scrub$(EXE) $(TOP)/ext/misc/scrub.c sqlite3.o $(THREADLIB) srcck1$(EXE): $(TOP)/tool/srcck1.c $(BCC) -o srcck1$(EXE) $(TOP)/tool/srcck1.c | > > > > | 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 | sqlite3$(EXE): $(TOP)/src/shell.c libsqlite3.a sqlite3.h $(TCCX) $(READLINE_FLAGS) -o sqlite3$(EXE) $(SHELL_OPT) \ $(TOP)/src/shell.c libsqlite3.a $(LIBREADLINE) $(TLIBS) $(THREADLIB) sqldiff$(EXE): $(TOP)/tool/sqldiff.c sqlite3.c sqlite3.h $(TCCX) -o sqldiff$(EXE) -DSQLITE_THREADSAFE=0 \ $(TOP)/tool/sqldiff.c sqlite3.c $(TLIBS) $(THREADLIB) dbhash$(EXE): $(TOP)/tool/dbhash.c sqlite3.c sqlite3.h $(TCCX) -o dbhash$(EXE) -DSQLITE_THREADSAFE=0 \ $(TOP)/tool/dbhash.c sqlite3.c $(TLIBS) $(THREADLIB) scrub$(EXE): $(TOP)/ext/misc/scrub.c sqlite3.o $(TCC) -I. -DSCRUB_STANDALONE -o scrub$(EXE) $(TOP)/ext/misc/scrub.c sqlite3.o $(THREADLIB) srcck1$(EXE): $(TOP)/tool/srcck1.c $(BCC) -o srcck1$(EXE) $(TOP)/tool/srcck1.c |
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Added tool/dbhash.c.
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In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** ** This is a utility program that computes an SHA1 hash on the content ** of an SQLite database. ** ** The hash is computed over just the content of the database. Free ** space inside of the database file, and alternative on-disk representations ** of the same content (ex: UTF8 vs UTF16) do not affect the hash. So, ** for example, the database file page size, encoding, and auto_vacuum setting ** can all be changed without changing the hash. */ #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #include <ctype.h> #include <string.h> #include <assert.h> #include "sqlite3.h" /* Context for the SHA1 hash */ typedef struct SHA1Context SHA1Context; struct SHA1Context { unsigned int state[5]; unsigned int count[2]; unsigned char buffer[64]; }; /* ** All global variables are gathered into the "g" singleton. */ struct GlobalVars { const char *zArgv0; /* Name of program */ unsigned fDebug; /* Debug flags */ sqlite3 *db; /* The database connection */ SHA1Context cx; /* SHA1 hash context */ } g; /* ** Debugging flags */ #define DEBUG_FULLTRACE 0x00000001 /* Trace hash to stderr */ /****************************************************************************** ** The Hash Engine ** ** Modify these routines (and appropriate state fields in global variable 'g') ** in order to compute a different (better?) hash of the database. */ /* * blk0() and blk() perform the initial expand. * I got the idea of expanding during the round function from SSLeay * * blk0le() for little-endian and blk0be() for big-endian. */ #if __GNUC__ && (defined(__i386__) || defined(__x86_64__)) /* * GCC by itself only generates left rotates. Use right rotates if * possible to be kinder to dinky implementations with iterative rotate * instructions. */ #define SHA_ROT(op, x, k) \ ({ unsigned int y; asm(op " %1,%0" : "=r" (y) : "I" (k), "0" (x)); y; }) #define rol(x,k) SHA_ROT("roll", x, k) #define ror(x,k) SHA_ROT("rorl", x, k) #else /* Generic C equivalent */ #define SHA_ROT(x,l,r) ((x) << (l) | (x) >> (r)) #define rol(x,k) SHA_ROT(x,k,32-(k)) #define ror(x,k) SHA_ROT(x,32-(k),k) #endif #define blk0le(i) (block[i] = (ror(block[i],8)&0xFF00FF00) \ |(rol(block[i],8)&0x00FF00FF)) #define blk0be(i) block[i] #define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \ ^block[(i+2)&15]^block[i&15],1)) /* * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1 * * Rl0() for little-endian and Rb0() for big-endian. Endianness is * determined at run-time. */ #define Rl0(v,w,x,y,z,i) \ z+=((w&(x^y))^y)+blk0le(i)+0x5A827999+rol(v,5);w=ror(w,2); #define Rb0(v,w,x,y,z,i) \ z+=((w&(x^y))^y)+blk0be(i)+0x5A827999+rol(v,5);w=ror(w,2); #define R1(v,w,x,y,z,i) \ z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=ror(w,2); #define R2(v,w,x,y,z,i) \ z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=ror(w,2); #define R3(v,w,x,y,z,i) \ z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=ror(w,2); #define R4(v,w,x,y,z,i) \ z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=ror(w,2); /* * Hash a single 512-bit block. This is the core of the algorithm. */ #define a qq[0] #define b qq[1] #define c qq[2] #define d qq[3] #define e qq[4] void SHA1Transform(unsigned int state[5], const unsigned char buffer[64]){ unsigned int qq[5]; /* a, b, c, d, e; */ static int one = 1; unsigned int block[16]; memcpy(block, buffer, 64); memcpy(qq,state,5*sizeof(unsigned int)); /* Copy g.cx.state[] to working vars */ /* a = state[0]; b = state[1]; c = state[2]; d = state[3]; e = state[4]; */ /* 4 rounds of 20 operations each. Loop unrolled. */ if( 1 == *(unsigned char*)&one ){ Rl0(a,b,c,d,e, 0); Rl0(e,a,b,c,d, 1); Rl0(d,e,a,b,c, 2); Rl0(c,d,e,a,b, 3); Rl0(b,c,d,e,a, 4); Rl0(a,b,c,d,e, 5); Rl0(e,a,b,c,d, 6); Rl0(d,e,a,b,c, 7); Rl0(c,d,e,a,b, 8); Rl0(b,c,d,e,a, 9); Rl0(a,b,c,d,e,10); Rl0(e,a,b,c,d,11); Rl0(d,e,a,b,c,12); Rl0(c,d,e,a,b,13); Rl0(b,c,d,e,a,14); Rl0(a,b,c,d,e,15); }else{ Rb0(a,b,c,d,e, 0); Rb0(e,a,b,c,d, 1); Rb0(d,e,a,b,c, 2); Rb0(c,d,e,a,b, 3); Rb0(b,c,d,e,a, 4); Rb0(a,b,c,d,e, 5); Rb0(e,a,b,c,d, 6); Rb0(d,e,a,b,c, 7); Rb0(c,d,e,a,b, 8); Rb0(b,c,d,e,a, 9); Rb0(a,b,c,d,e,10); Rb0(e,a,b,c,d,11); Rb0(d,e,a,b,c,12); Rb0(c,d,e,a,b,13); Rb0(b,c,d,e,a,14); Rb0(a,b,c,d,e,15); } R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); /* Add the working vars back into context.state[] */ state[0] += a; state[1] += b; state[2] += c; state[3] += d; state[4] += e; } /* Initialize the SHA1 hash */ static void hash_init(void){ /* SHA1 initialization constants */ g.cx.state[0] = 0x67452301; g.cx.state[1] = 0xEFCDAB89; g.cx.state[2] = 0x98BADCFE; g.cx.state[3] = 0x10325476; g.cx.state[4] = 0xC3D2E1F0; g.cx.count[0] = g.cx.count[1] = 0; } /* Add new content to the SHA1 hash */ static void hash_step(const unsigned char *data, unsigned int len){ unsigned int i, j; j = g.cx.count[0]; if( (g.cx.count[0] += len << 3) < j ){ g.cx.count[1] += (len>>29)+1; } j = (j >> 3) & 63; if( (j + len) > 63 ){ (void)memcpy(&g.cx.buffer[j], data, (i = 64-j)); SHA1Transform(g.cx.state, g.cx.buffer); for(; i + 63 < len; i += 64){ SHA1Transform(g.cx.state, &data[i]); } j = 0; }else{ i = 0; } (void)memcpy(&g.cx.buffer[j], &data[i], len - i); } /* Add padding and compute and output the message digest. */ static void hash_finish(const char *zName){ unsigned int i; unsigned char finalcount[8]; unsigned char digest[20]; static const char zEncode[] = "0123456789abcdef"; char zOut[41]; for (i = 0; i < 8; i++){ finalcount[i] = (unsigned char)((g.cx.count[(i >= 4 ? 0 : 1)] >> ((3-(i & 3)) * 8) ) & 255); /* Endian independent */ } hash_step((const unsigned char *)"\200", 1); while ((g.cx.count[0] & 504) != 448){ hash_step((const unsigned char *)"\0", 1); } hash_step(finalcount, 8); /* Should cause a SHA1Transform() */ for (i = 0; i < 20; i++){ digest[i] = (unsigned char)((g.cx.state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); } for(i=0; i<20; i++){ zOut[i*2] = zEncode[(digest[i]>>4)&0xf]; zOut[i*2+1] = zEncode[digest[i] & 0xf]; } zOut[i*2]= 0; printf("%s %s\n", zOut, zName); } /* End of the hashing logic *******************************************************************************/ /* ** Print an error resulting from faulting command-line arguments and ** abort the program. */ static void cmdlineError(const char *zFormat, ...){ va_list ap; fprintf(stderr, "%s: ", g.zArgv0); va_start(ap, zFormat); vfprintf(stderr, zFormat, ap); va_end(ap); fprintf(stderr, "\n\"%s --help\" for more help\n", g.zArgv0); exit(1); } /* ** Print an error message for an error that occurs at runtime, then ** abort the program. */ static void runtimeError(const char *zFormat, ...){ va_list ap; fprintf(stderr, "%s: ", g.zArgv0); va_start(ap, zFormat); vfprintf(stderr, zFormat, ap); va_end(ap); fprintf(stderr, "\n"); exit(1); } /* ** Prepare a new SQL statement. Print an error and abort if anything ** goes wrong. */ static sqlite3_stmt *db_vprepare(const char *zFormat, va_list ap){ char *zSql; int rc; sqlite3_stmt *pStmt; zSql = sqlite3_vmprintf(zFormat, ap); if( zSql==0 ) runtimeError("out of memory"); rc = sqlite3_prepare_v2(g.db, zSql, -1, &pStmt, 0); if( rc ){ runtimeError("SQL statement error: %s\n\"%s\"", sqlite3_errmsg(g.db), zSql); } sqlite3_free(zSql); return pStmt; } static sqlite3_stmt *db_prepare(const char *zFormat, ...){ va_list ap; sqlite3_stmt *pStmt; va_start(ap, zFormat); pStmt = db_vprepare(zFormat, ap); va_end(ap); return pStmt; } /* ** Compute the hash for all rows of the query formed from the printf-style ** zFormat and its argument. */ static void hash_one_query(const char *zFormat, ...){ va_list ap; sqlite3_stmt *pStmt; /* The query defined by zFormat and "..." */ int nCol; /* Number of columns in the result set */ int i; /* Loop counter */ /* Prepare the query defined by zFormat and "..." */ va_start(ap, zFormat); pStmt = db_vprepare(zFormat, ap); va_end(ap); nCol = sqlite3_column_count(pStmt); /* Compute a hash over the result of the query */ while( SQLITE_ROW==sqlite3_step(pStmt) ){ for(i=0; i<nCol; i++){ switch( sqlite3_column_type(pStmt,i) ){ case SQLITE_NULL: { hash_step((const unsigned char*)"0",1); if( g.fDebug & DEBUG_FULLTRACE ) fprintf(stderr, "NULL\n"); break; } case SQLITE_INTEGER: { sqlite3_uint64 u; int j; unsigned char x[8]; sqlite3_int64 v = sqlite3_column_int64(pStmt,i); memcpy(&u, &v, 8); for(j=7; j>=0; j--){ x[j] = u & 0xff; u >>= 8; } hash_step((const unsigned char*)"1",1); hash_step(x,8); if( g.fDebug & DEBUG_FULLTRACE ){ fprintf(stderr, "INT %s\n", sqlite3_column_text(pStmt,i)); } break; } case SQLITE_FLOAT: { sqlite3_uint64 u; int j; unsigned char x[8]; double r = sqlite3_column_double(pStmt,i); memcpy(&u, &r, 8); for(j=7; j>=0; j--){ x[j] = u & 0xff; u >>= 8; } hash_step((const unsigned char*)"2",1); hash_step(x,8); if( g.fDebug & DEBUG_FULLTRACE ){ fprintf(stderr, "FLOAT %s\n", sqlite3_column_text(pStmt,i)); } break; } case SQLITE_TEXT: { int n = sqlite3_column_bytes(pStmt, i); const unsigned char *z = sqlite3_column_text(pStmt, i); hash_step((const unsigned char*)"3", 1); hash_step(z, n); if( g.fDebug & DEBUG_FULLTRACE ){ fprintf(stderr, "TEXT '%s'\n", sqlite3_column_text(pStmt,i)); } break; } case SQLITE_BLOB: { int n = sqlite3_column_bytes(pStmt, i); const unsigned char *z = sqlite3_column_blob(pStmt, i); hash_step((const unsigned char*)"4", 1); hash_step(z, n); if( g.fDebug & DEBUG_FULLTRACE ){ fprintf(stderr, "BLOB (%d bytes)\n", n); } break; } } } } sqlite3_finalize(pStmt); } /* ** Print sketchy documentation for this utility program */ static void showHelp(void){ printf("Usage: %s [options] FILE ...\n", g.zArgv0); printf( "Compute a SHA1 hash on the content of database FILE. System tables such as\n" "sqlite_stat1, sqlite_stat4, and sqlite_sequence are omitted from the hash.\n" "Options:\n" " --debug N Set debugging flags to N (experts only)\n" " --like PATTERN Only hash tables whose name is LIKE the pattern\n" " --schema-only Only hash the schema - omit table content\n" " --without-schema Only hash table content - omit the schema\n" ); } int main(int argc, char **argv){ const char *zDb = 0; /* Name of the database currently being hashed */ int i; /* Loop counter */ int rc; /* Subroutine return code */ char *zErrMsg; /* Error message when opening database */ sqlite3_stmt *pStmt; /* An SQLite query */ const char *zLike = 0; /* LIKE pattern of tables to hash */ int omitSchema = 0; /* True to compute hash on content only */ int omitContent = 0; /* True to compute hash on schema only */ int nFile = 0; /* Number of input filenames seen */ g.zArgv0 = argv[0]; sqlite3_config(SQLITE_CONFIG_SINGLETHREAD); for(i=1; i<argc; i++){ const char *z = argv[i]; if( z[0]=='-' ){ z++; if( z[0]=='-' ) z++; if( strcmp(z,"debug")==0 ){ if( i==argc-1 ) cmdlineError("missing argument to %s", argv[i]); g.fDebug = strtol(argv[++i], 0, 0); }else if( strcmp(z,"help")==0 ){ showHelp(); return 0; }else if( strcmp(z,"like")==0 ){ if( i==argc-1 ) cmdlineError("missing argument to %s", argv[i]); if( zLike!=0 ) cmdlineError("only one --like allowed"); zLike = argv[++i]; }else if( strcmp(z,"schema-only")==0 ){ omitContent = 1; }else if( strcmp(z,"without-schema")==0 ){ omitSchema = 1; }else { cmdlineError("unknown option: %s", argv[i]); } }else{ nFile++; if( nFile<i ) argv[nFile] = argv[i]; } } if( nFile==0 ){ cmdlineError("no input files specified - nothing to do"); } if( omitSchema && omitContent ){ cmdlineError("only one of --without-schema and --omit-schema allowed"); } if( zLike==0 ) zLike = "%"; for(i=1; i<=nFile; i++){ static const int openFlags = SQLITE_OPEN_READWRITE | /* Read/write so hot journals can recover */ SQLITE_OPEN_URI ; zDb = argv[i]; rc = sqlite3_open_v2(zDb, &g.db, openFlags, 0); if( rc ){ fprintf(stderr, "cannot open database file '%s'\n", zDb); continue; } rc = sqlite3_exec(g.db, "SELECT * FROM sqlite_master", 0, 0, &zErrMsg); if( rc || zErrMsg ){ sqlite3_close(g.db); g.db = 0; fprintf(stderr, "'%s' is not a valid SQLite database\n", zDb); continue; } /* Start the hash */ hash_init(); /* Hash table content */ if( !omitContent ){ pStmt = db_prepare( "SELECT name FROM sqlite_master\n" " WHERE type='table' AND sql NOT LIKE 'CREATE VIRTUAL%%'\n" " AND name NOT LIKE 'sqlite_%%'\n" " AND name LIKE '%q'\n" " ORDER BY name COLLATE nocase;\n", zLike ); while( SQLITE_ROW==sqlite3_step(pStmt) ){ /* We want rows of the table to be hashed in PRIMARY KEY order. ** Technically, an ORDER BY clause is required to guarantee that ** order. However, though not guaranteed by the documentation, every ** historical version of SQLite has always output rows in PRIMARY KEY ** order when there is no WHERE or GROUP BY clause, so the ORDER BY ** can be safely omitted. */ hash_one_query("SELECT * FROM \"%w\"", sqlite3_column_text(pStmt,0)); } sqlite3_finalize(pStmt); } /* Hash the database schema */ if( !omitSchema ){ hash_one_query( "SELECT type, name, tbl_name, sql FROM sqlite_master\n" " WHERE tbl_name LIKE '%q'\n" " ORDER BY name COLLATE nocase;\n", zLike ); } /* Finish and output the hash and close the database connection. */ hash_finish(zDb); sqlite3_close(g.db); } return 0; } |