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函数StrToInt32内部判断范围代码无效

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This commit is contained in:
lilong
2023-01-04 14:49:00 +08:00
parent ee3b7bcb4c
commit 0762036bb3
1 changed files with 6 additions and 4 deletions
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10
src/gausskernel/optimizer/commands/copy.cpp
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@ -8442,6 +8442,7 @@ char* scan_dir(DIR* dir, const char* dirpath, const char* pattern, long* filesiz
bool StrToInt32(const char* s, int *val)
{
/* set val to zero */
int64 _val = 0;
*val = 0;
int base = 10;
const char* ptr = s;
@ -8450,11 +8451,12 @@ bool StrToInt32(const char* s, int *val)
if (isdigit((unsigned char)*ptr) == 0)
return false;
int8 digit = (*ptr++ - '0');
*val = *val * base + digit;
if (*val > PG_INT32_MAX || *val < PG_INT32_MIN) {
return false;
}
_val = _val * base + digit;
if (_val > PG_INT32_MAX || _val < PG_INT32_MIN) {
return false;
}
}
*val = (int)_val;
return true;
}