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changes to ip6addr_aton() to avoid crash with some ill-formatted

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strings.
This commit is contained in:
Ivan Delamer 2015-05-05 13:26:17 -06:00
parent 2c79332de7
commit 73660f779b
1 changed files with 8 additions and 2 deletions
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10
src/core/ipv6/ip6_addr.c
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@ -104,10 +104,12 @@ ip6addr_aton(const char *cp, ip6_addr_t *addr)
if (current_block_index > 7) { if (current_block_index > 7) {
/* address too long! */ /* address too long! */
return 0; return 0;
} if (s[1] == ':') { }
if (s[1] == ':') {
s++; s++;
/* "::" found, set zeros */ /* "::" found, set zeros */
while (zero_blocks-- > 0) { while (zero_blocks > 0) {
zero_blocks--;
if (current_block_index & 0x1) { if (current_block_index & 0x1) {
addr_index++; addr_index++;
} }
@ -117,6 +119,10 @@ ip6addr_aton(const char *cp, ip6_addr_t *addr)
} }
} }
current_block_index++; current_block_index++;
if (current_block_index > 7) {
/* address too long! */
return 0;
}
} }
} }
} else if (isxdigit(*s)) { } else if (isxdigit(*s)) {