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In Redis RDB check: more details in error reportings.

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This commit is contained in:
antirez 2016-07-01 15:26:55 +02:00
parent 41f300473a
commit 27dbec2a36
1 changed files with 24 additions and 13 deletions
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35
src/rdb.c
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@ -45,22 +45,29 @@
#define RDB_LOAD_ENC (1<<0)
#define RDB_LOAD_PLAIN (1<<1)
#define rdbExitReportCorruptRDB(reason) rdbCheckThenExit(reason, __LINE__);
#define rdbExitReportCorruptRDB(...) rdbCheckThenExit(__LINE__,__VA_ARGS__)
extern int rdbCheckMode;
void rdbCheckError(const char *fmt, ...);
void rdbCheckSetError(const char *fmt, ...);
void rdbCheckThenExit(char *reason, int where) {
void rdbCheckThenExit(int linenum, char *reason, ...) {
va_list ap;
char msg[1024];
int len;
len = snprintf(msg,sizeof(msg),
"Internal error in RDB reading function at rdb.c:%d -> ", linenum);
va_start(ap,reason);
vsnprintf(msg+len,sizeof(msg)-len,reason,ap);
va_end(ap);
if (!rdbCheckMode) {
serverLog(LL_WARNING, "Corrupt RDB detected at rdb.c:%d (%s). "
"Running 'redis-check-rdb %s'",
where, reason, server.rdb_filename);
serverLog(LL_WARNING, "%s", msg);
char *argv[2] = {"",server.rdb_filename};
redis_check_rdb_main(2,argv);
} else {
rdbCheckError("Internal error in RDB reading function at rdb.c:%d (%s)",
where, reason);
rdbCheckError("%s",msg);
}
exit(1);
}
@ -152,10 +159,14 @@ uint32_t rdbLoadLen(rio *rdb, int *isencoded) {
/* Read a 14 bit len. */
if (rioRead(rdb,buf+1,1) == 0) return RDB_LENERR;
return ((buf[0]&0x3F)<<8)|buf[1];
} else {
} else if (type == RDB_32BITLEN) {
/* Read a 32 bit len. */
if (rioRead(rdb,&len,4) == 0) return RDB_LENERR;
return ntohl(len);
} else {
rdbExitReportCorruptRDB(
"Unknown length encoding %d in rdbLoadLen()",type);
return -1; /* Never reached. */
}
}
@ -209,7 +220,7 @@ void *rdbLoadIntegerObject(rio *rdb, int enctype, int flags) {
val = (int32_t)v;
} else {
val = 0; /* anti-warning */
rdbExitReportCorruptRDB("Unknown RDB integer encoding type");
rdbExitReportCorruptRDB("Unknown RDB integer encoding type %d",enctype);
}
if (plain) {
char buf[LONG_STR_SIZE], *p;
@ -419,7 +430,7 @@ void *rdbGenericLoadStringObject(rio *rdb, int flags) {
case RDB_ENC_LZF:
return rdbLoadLzfStringObject(rdb,flags);
default:
rdbExitReportCorruptRDB("Unknown RDB encoding type");
rdbExitReportCorruptRDB("Unknown RDB string encoding type %d",len);
}
}
@ -1205,11 +1216,11 @@ robj *rdbLoadObject(int rdbtype, rio *rdb) {
hashTypeConvert(o, OBJ_ENCODING_HT);
break;
default:
rdbExitReportCorruptRDB("Unknown encoding");
rdbExitReportCorruptRDB("Unknown RDB encoding type %d",rdbtype);
break;
}
} else {
rdbExitReportCorruptRDB("Unknown object type");
rdbExitReportCorruptRDB("Unknown RDB encoding type %d",rdbtype);
}
return o;
}