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slirp: Remove unused variable and unused code

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9634d9031c140b24c7ca0d8872632207f6ce7275 disabled unused code.
This patch removes what was left.

If do_pty is 2, the function returns immediately, so any later checks
for do_pty == 2 will always fail and can be removed together with
the code which is never executed. Then variable master is unused and
can be removed, too.

This issue was detected by coverity.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
This commit is contained in:
Stefan Weil 2012-01-05 14:18:45 +01:00 committed by Jan Kiszka
parent cf4dc461a4
commit 9f1134d4aa
1 changed files with 26 additions and 41 deletions
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19
slirp/misc.c
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@ -113,7 +113,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
int opt;
int master = -1;
const char *argv[256];
/* don't want to clobber the original */
char *bptr;
@ -148,20 +147,12 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
case -1:
lprint("Error: fork failed: %s\n", strerror(errno));
close(s);
if (do_pty == 2)
close(master);
return 0;
case 0:
setsid();
/* Set the DISPLAY */
if (do_pty == 2) {
(void) close(master);
#ifdef TIOCSCTTY /* XXXXX */
ioctl(s, TIOCSCTTY, (char *)NULL);
#endif
} else {
getsockname(s, (struct sockaddr *)&addr, &addrlen);
close(s);
/*
@ -173,7 +164,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
do {
ret = connect(s, (struct sockaddr *)&addr, addrlen);
} while (ret < 0 && errno == EINTR);
}
dup2(s, 0);
dup2(s, 1);
@ -210,10 +200,6 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
default:
qemu_add_child_watch(pid);
if (do_pty == 2) {
close(s);
so->s = master;
} else {
/*
* XXX this could block us...
* XXX Should set a timer here, and if accept() doesn't
@ -226,10 +212,9 @@ fork_exec(struct socket *so, const char *ex, int do_pty)
} while (so->s < 0 && errno == EINTR);
closesocket(s);
opt = 1;
setsockopt(so->s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
setsockopt(so->s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int));
opt = 1;
setsockopt(so->s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
}
setsockopt(so->s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int));
fd_nonblock(so->s);
/* Append the telnet options now */