850223a953
- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing - Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives - Added LRU caching system for address validation with 10-minute TTL - Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures - Fixed duplicate function declarations and import conflicts across multiple files - Added error recovery mechanisms with multiple fallback strategies - Updated tests to handle new validation behavior for suspicious addresses - Fixed parser test expectations for improved validation system - Applied gofmt formatting fixes to ensure code style compliance - Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot - Resolved critical security vulnerabilities in heuristic address extraction - Progress: Updated TODO audit from 10% to 35% complete 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
package security
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import (
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"fmt"
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"math"
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)
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// SafeUint64ToUint32 converts uint64 to uint32 with overflow check
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func SafeUint64ToUint32(value uint64) (uint32, error) {
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if value > math.MaxUint32 {
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return 0, fmt.Errorf("value %d exceeds maximum uint32 value %d", value, math.MaxUint32)
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}
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return uint32(value), nil
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}
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// SafeUint64ToInt64 converts uint64 to int64 with bounds check
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func SafeUint64ToInt64(value uint64) (int64, error) {
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if value > math.MaxInt64 {
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return 0, fmt.Errorf("value %d exceeds maximum int64 value %d", value, math.MaxInt64)
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}
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return int64(value), nil
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}
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// SafeUint64ToUint32WithDefault converts uint64 to uint32 with overflow check and default value
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func SafeUint64ToUint32WithDefault(value uint64, defaultValue uint32) uint32 {
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if value > math.MaxUint32 {
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return defaultValue
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}
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return uint32(value)
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}
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// SafeAddUint64 adds two uint64 values with overflow check
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func SafeAddUint64(a, b uint64) (uint64, error) {
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if a > math.MaxUint64-b {
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return 0, fmt.Errorf("addition overflow: %d + %d exceeds maximum uint64 value", a, b)
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}
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return a + b, nil
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}
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// SafeSubtractUint64 subtracts b from a with underflow check
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func SafeSubtractUint64(a, b uint64) (uint64, error) {
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if a < b {
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return 0, fmt.Errorf("subtraction underflow: %d - %d results in negative value", a, b)
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}
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return a - b, nil
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}
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// SafeMultiplyUint64 multiplies two uint64 values with overflow check
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func SafeMultiplyUint64(a, b uint64) (uint64, error) {
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if b != 0 && a > math.MaxUint64/b {
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return 0, fmt.Errorf("multiplication overflow: %d * %d exceeds maximum uint64 value", a, b)
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}
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return a * b, nil
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}
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