wpcap: Handle negative count for pcap_dispatch and pcap_loop.

According to WinPcap documentation of `pcap_dispatch` (https://www.winpcap.org/docs/docs_41b5/html/group__wpcapfunc.html#g60ce104cdf28420d3361cd36d15be44c): > A cnt of -1 processes all the packets received in one buffer when > reading a live capture, or all the packets in the file when reading a > ``savefile'' Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55487Signed-off-by: Alexis Murzeau <amubtdx@gmail.com>

wpcap: Handle negative count for pcap_dispatch and pcap_loop.
2cc573ae · Alexis Murzeau · Alexandre Julliard · 1942cc30 · 2cc573ae
Commit 2cc573ae authored Aug 30, 2023 by Alexis Murzeau Committed by Alexandre Julliard Aug 30, 2023
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wpcap.c dlls/wpcap/wpcap.c +2 -2

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--- a/dlls/wpcap/wpcap.c
+++ b/dlls/wpcap/wpcap.c
@@ -967,7 +967,7 @@ int CDECL pcap_dispatch( struct pcap *pcap, int count,

    TRACE( "%p, %d, %p, %p\n", pcap, count, callback, user );

-    while (processed < count)
+    while (count <= 0 || processed < count)
    {
        struct pcap_pkthdr_win32 *hdr = NULL;
        const unsigned char *data = NULL;
@@ -1000,7 +1000,7 @@ int CDECL pcap_loop( struct pcap *pcap, int count,

    TRACE( "%p, %d, %p, %p\n", pcap, count, callback, user );

-    while (processed < count)
+    while (count <= 0 || processed < count)
    {
        struct pcap_pkthdr_win32 *hdr = NULL;
        const unsigned char *data = NULL;