Fix inet_pton(3) parsing 1:: and ::1.2.3.4 cases.
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1 changed files with 8 additions and 6 deletions
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@ -23,6 +23,7 @@
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <stdbool.h>
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int inet_pton(int af, const char* restrict src, void* restrict dst)
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{
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@ -65,23 +66,24 @@ int inet_pton(int af, const char* restrict src, void* restrict dst)
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int i;
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for ( i = 0; i < 8; i++ )
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{
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if ( compressed_at == -1 &&
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src[index + 0] == ':' &&
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src[index + 1] == ':' )
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bool compressing = compressed_at == -1 &&
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src[index + 0] == ':' &&
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src[index + 1] == ':';
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if ( compressing )
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{
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index += 2;
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compressed_at = i;
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}
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else if ( !src[index] )
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if ( !src[index] )
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break;
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else if ( i && src[index++] != ':' )
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if ( i && !compressing && src[index++] != ':' )
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return 0;
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int num = 0;
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for ( int j = 0; j < 4; j++ )
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{
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if ( src[index] == '.' &&
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((compressed_at == -1 && i == 6) ||
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(0 < compressed_at && i <= 6)) )
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(0 <= compressed_at && i <= 6)) )
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{
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index -= j;
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for ( int n = 0; n < 4; n++ )
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