mirror of
https://github.com/Ysurac/openmptcprouter-feeds.git
synced 2025-03-09 15:40:03 +00:00
35 lines
998 B
Diff
35 lines
998 B
Diff
diff -Nur a/utils.c netifd-2019-08-05-5e02f944/utils.c
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--- a/utils.c 2020-06-04 11:54:37.287682451 -0700
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+++ netifd-2019-08-05-5e02f944/utils.c 2020-06-04 11:58:41.782809397 -0700
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@@ -118,9 +118,11 @@
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int
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parse_ip_and_netmask(int af, const char *str, void *addr, unsigned int *netmask)
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{
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- char *astr = alloca(strlen(str) + 1);
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+ int len = strlen(str) + 1;
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+ char *astr = alloca(len);
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+ int ret = 0;
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- strcpy(astr, str);
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+ strncpy(astr, str, len);
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if (!split_netmask(astr, netmask, af == AF_INET6))
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return 0;
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@@ -132,7 +134,16 @@
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return 0;
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}
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- return inet_pton(af, astr, addr);
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+ ret = inet_pton(af, astr, addr);
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+ if ((ret > 0) && (af == AF_INET)) {
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+ struct in_addr *ip4_addr = (struct in_addr *)addr;
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+ uint32_t host_addr = ntohl(ip4_addr->s_addr);
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+
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+ if (!IN_CLASSA(host_addr) && !IN_CLASSB(host_addr) && !IN_CLASSC(host_addr)) {
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+ ret = 0;
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+ }
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+ }
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+ return ret;
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}
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char *
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