archive/fscan
1
0
Fork 0
mirror of https://github.com/shadow1ng/fscan.git synced 2026-09-26 21:21:53 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Remove SimpleMaxHosts limit to fix large CIDR scanning
测试构建 / 代码检查 (push) Has been cancelled
Details
测试构建 / 单元测试和构建 (push) Has been cancelled
Details
测试构建 / 构建验证 (push) Has been cancelled
Details

Browse Source 
Closes #583
This commit is contained in:
ZacharyZcR
2026-05-27 16:16:42 +08:00
parent 8d30ee334c
commit 40b0eee654
3 changed files with 21 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files
common/parsers/parsers.go
+15 -29
View File
@@ -90,31 +90,31 @@ func parseHostString(host string) ([]string, error) {
switch {
case h == "192":
cidrHosts, err := parseIPCIDR("192.168.0.0/16", SimpleMaxHosts)
cidrHosts, err := parseIPCIDR("192.168.0.0/16")
if err != nil {
return nil, err
}
hosts = append(hosts, cidrHosts...)
case h == "172":
cidrHosts, err := parseIPCIDR("172.16.0.0/12", SimpleMaxHosts)
cidrHosts, err := parseIPCIDR("172.16.0.0/12")
if err != nil {
return nil, err
}
hosts = append(hosts, cidrHosts...)
case h == "10":
cidrHosts, err := parseIPCIDR("10.0.0.0/8", SimpleMaxHosts)
cidrHosts, err := parseIPCIDR("10.0.0.0/8")
if err != nil {
return nil, err
}
hosts = append(hosts, cidrHosts...)
case strings.Contains(h, "/"):
cidrHosts, err := parseIPCIDR(h, SimpleMaxHosts)
cidrHosts, err := parseIPCIDR(h)
if err != nil {
return nil, fmt.Errorf(i18n.Tr("parser_cidr_failed", h)+": %w", err)
}
hosts = append(hosts, cidrHosts...)
case strings.Contains(h, "-") && !strings.Contains(h, ":") && looksLikeIPRange(h):
rangeHosts, err := parseIPRangeString(h, SimpleMaxHosts)
rangeHosts, err := parseIPRangeString(h)
if err != nil {
return nil, fmt.Errorf(i18n.Tr("parser_ip_range_failed", h)+": %w", err)
}
@@ -289,7 +289,7 @@ func ParseHashFile(filename string) ([]string, [][]byte, error) {
// =============================================================================
// parseIPCIDR 解析CIDR网段
func parseIPCIDR(cidr string, maxTargets int) ([]string, error) {
func parseIPCIDR(cidr string) ([]string, error) {
_, ipNet, err := net.ParseCIDR(cidr)
if err != nil {
return nil, err
@@ -299,17 +299,11 @@ func parseIPCIDR(cidr string, maxTargets int) ([]string, error) {
ip := make(net.IP, len(ipNet.IP))
copy(ip, ipNet.IP)
count := 0
for ipNet.Contains(ip) {
ips = append(ips, ip.String())
count++
if maxTargets > 0 && count >= maxTargets {
break
}
incrementIP(ip)
}
// 移除网络地址和广播地址
if len(ips) > 2 {
ips = ips[1 : len(ips)-1]
}
@@ -331,7 +325,7 @@ func looksLikeIPRange(s string) bool {
}
// parseIPRangeString 解析IP范围字符串
func parseIPRangeString(rangeStr string, maxTargets int) ([]string, error) {
func parseIPRangeString(rangeStr string) ([]string, error) {
parts := strings.Split(rangeStr, "-")
if len(parts) != 2 {
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_ip_range_fmt", rangeStr))
@@ -342,28 +336,28 @@ func parseIPRangeString(rangeStr string, maxTargets int) ([]string, error) {
startIP := net.ParseIP(startIPStr)
if startIP == nil {
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_start_ip", startIPStr))
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_start_ip", startIPStr))
}
// 处理简写格式 (如: 192.168.1.1-100)
if len(endIPStr) < 4 || !strings.Contains(endIPStr, ".") {
return parseIPShortRange(startIPStr, endIPStr, maxTargets)
return parseIPShortRange(startIPStr, endIPStr)
}
// 处理完整格式 (如: 192.168.1.1-192.168.1.100)
endIP := net.ParseIP(endIPStr)
if endIP == nil {
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_end_ip", endIPStr))
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_end_ip", endIPStr))
}
return parseIPFullRange(startIP, endIP, maxTargets)
return parseIPFullRange(startIP, endIP)
}
// parseIPShortRange 解析短格式IP范围
func parseIPShortRange(startIPStr, endSuffix string, maxTargets int) ([]string, error) {
func parseIPShortRange(startIPStr, endSuffix string) ([]string, error) {
endNum, err := strconv.Atoi(endSuffix)
if err != nil || endNum > 255 {
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_ip_end_val", endSuffix))
return nil, fmt.Errorf("%s", i18n.Tr("parser_invalid_ip_end_val", endSuffix))
}
ipParts := strings.Split(startIPStr, ".")
@@ -378,20 +372,15 @@ func parseIPShortRange(startIPStr, endSuffix string, maxTargets int) ([]string,
}
var allIP []string
count := 0
for i := startNum; i <= endNum; i++ {
allIP = append(allIP, fmt.Sprintf("%s.%d", prefixIP, i))
count++
if maxTargets > 0 && count >= maxTargets {
break
}
}
return allIP, nil
}
// parseIPFullRange 解析完整格式的IP范围
func parseIPFullRange(startIP, endIP net.IP, maxTargets int) ([]string, error) {
func parseIPFullRange(startIP, endIP net.IP) ([]string, error) {
start4 := startIP.To4()
end4 := endIP.To4()
if start4 == nil || end4 == nil {
@@ -409,12 +398,9 @@ func parseIPFullRange(startIP, endIP net.IP, maxTargets int) ([]string, error) {
current := make(net.IP, len(start4))
copy(current, start4)
count := 0
for {
ips = append(ips, current.String())
count++
if current.Equal(end4) || (maxTargets > 0 && count >= maxTargets) {
if current.Equal(end4) {
break
}
incrementIP(current)