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Fix a few 32-bit overflow problems in showdb.c.

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FossilOrigin-Name: 9377766647eeaa575d646cf5f66c3163ef7074930aa5c3b11073e6b1e90ce799
This commit is contained in:
dan
2025-02-12 20:19:57 +00:00
parent 1be96b44c1
commit 25367c1eb0
3 changed files with 12 additions and 11 deletions
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7
tool/showdb.c
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@ -27,7 +27,7 @@ typedef sqlite3_uint64 u64; /* unsigned 64-bit */
static struct GlobalData {
u32 pagesize; /* Size of a database page */
i64 pagesize; /* Size of a database page */
int dbfd; /* File descriptor for reading the DB */
u32 mxPage; /* Last page number */
int perLine; /* HEX elements to print per line */
@ -1178,7 +1178,7 @@ int main(int argc, char **argv){
if( g.pagesize==0 ) g.pagesize = 1024;
sqlite3_free(zPgSz);
printf("Pagesize: %d\n", g.pagesize);
printf("Pagesize: %d\n", (int)g.pagesize);
g.mxPage = (u32)((szFile+g.pagesize-1)/g.pagesize);
printf("Available pages: 1..%u\n", g.mxPage);
@ -1218,7 +1218,8 @@ int main(int argc, char **argv){
iEnd = strtol(&zLeft[2], 0, 0);
checkPageValidity(iEnd);
}else if( zLeft && zLeft[0]=='b' ){
int ofst, nByte, hdrSize;
i64 ofst;
int nByte, hdrSize;
unsigned char *a;
if( iStart==1 ){
ofst = hdrSize = 100;