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wireguard-apple
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Clean up do_read.

This commit is contained in:
Jeroen Leenarts 2018-08-05 15:58:52 +02:00
parent 2941f0eb71
commit ad2bc1e1ce
1 changed files with 9 additions and 4 deletions
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13
WireGuardNetworkExtension/WireGuardGoWrapper.m
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@ -81,6 +81,8 @@ static void do_log(int level, const char *tag, const char *msg);
static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len)
{
WireGuardGoWrapper *wrapper = (__bridge WireGuardGoWrapper *)ctx;
if (wrapper.isClosed) return -1;
if (wrapper.packets.count == 0) {
[wrapper.packetFlow readPacketsWithCompletionHandler:^(NSArray<NSData *> * _Nonnull packets, NSArray<NSNumber *> * _Nonnull protocols) {
@ -97,11 +99,14 @@ static ssize_t do_read(const void *ctx, const unsigned char *buf, size_t len)
[wrapper.packets removeObjectAtIndex:0];
[wrapper.protocols removeObjectAtIndex:0];
len = [packet length];
buf = (Byte*)malloc(len);
memcpy(buf, [packet bytes], len);
NSUInteger packetLength = [packet length];
if (packetLength > len) {
// The packet will be dropped when we end up here.
return 0;
}
memcpy(buf, [packet bytes], packetLength);
return wrapper.isClosed ? -1 : 0;
return packetLength;
}
static ssize_t do_write(const void *ctx, const unsigned char *buf, size_t len)