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Xvnc: do not use dup2() to create a file descriptor for -inetd option #1714

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Jan 8, 2024
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Xvnc: do not use dup2() to create a file descriptor for -inetd option #1714

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6 changes: 4 additions & 2 deletions unix/xserver/hw/vnc/xvnc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -366,8 +366,10 @@ ddxProcessArgument(int argc, char *argv[], int i)
if (strcmp(argv[i], "-inetd") == 0) {
int nullfd;

dup2(0, 3);
vncInetdSock = 3;
if ((vncInetdSock = dup(0)) == -1)
FatalError
("Xvnc error: failed to allocate a new file descriptor for -inetd: %s\n", strerror(errno));


/* Avoid xserver >= 1.19's epoll-fd becoming fd 2 / stderr only to be
replaced by /dev/null by OsInit() because the pollfd is not
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