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Diffstat (limited to 'arch/um/drivers/slirp_user.c')
-rw-r--r--arch/um/drivers/slirp_user.c67
1 files changed, 35 insertions, 32 deletions
diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c
index 0e462f64f22..a4755bc33e1 100644
--- a/arch/um/drivers/slirp_user.c
+++ b/arch/um/drivers/slirp_user.c
@@ -1,18 +1,17 @@
-#include <stdio.h>
-#include <stdlib.h>
+/*
+ * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Licensed under the GPL.
+ */
+
#include <unistd.h>
-#include <stddef.h>
-#include <sched.h>
-#include <string.h>
#include <errno.h>
+#include <string.h>
#include <sys/wait.h>
-#include <sys/signal.h>
-#include "kern_util.h"
-#include "user.h"
+#include "kern_constants.h"
#include "net_user.h"
-#include "slirp.h"
-#include "slip_common.h"
#include "os.h"
+#include "slirp.h"
+#include "user.h"
static int slirp_user_init(void *data, void *dev)
{
@@ -31,8 +30,10 @@ static void slirp_pre_exec(void *arg)
{
struct slirp_pre_exec_data *data = arg;
- if(data->stdin != -1) dup2(data->stdin, 0);
- if(data->stdout != -1) dup2(data->stdout, 1);
+ if (data->stdin != -1)
+ dup2(data->stdin, 0);
+ if (data->stdout != -1)
+ dup2(data->stdout, 1);
}
static int slirp_tramp(char **argv, int fd)
@@ -44,7 +45,7 @@ static int slirp_tramp(char **argv, int fd)
pe_data.stdout = fd;
pid = run_helper(slirp_pre_exec, &pe_data, argv);
- return(pid);
+ return pid;
}
static int slirp_open(void *data)
@@ -53,12 +54,12 @@ static int slirp_open(void *data)
int fds[2], pid, err;
err = os_pipe(fds, 1, 1);
- if(err)
- return(err);
+ if (err)
+ return err;
err = slirp_tramp(pri->argw.argv, fds[1]);
- if(err < 0){
- printk("slirp_tramp failed - errno = %d\n", -err);
+ if (err < 0) {
+ printk(UM_KERN_ERR "slirp_tramp failed - errno = %d\n", -err);
goto out;
}
pid = err;
@@ -68,10 +69,10 @@ static int slirp_open(void *data)
pri->slip.esc = 0;
pri->pid = err;
- return(fds[0]);
+ return fds[0];
out:
- os_close_file(fds[0]);
- os_close_file(fds[1]);
+ close(fds[0]);
+ close(fds[1]);
return err;
}
@@ -80,31 +81,33 @@ static void slirp_close(int fd, void *data)
struct slirp_data *pri = data;
int status,err;
- os_close_file(fd);
- os_close_file(pri->slave);
+ close(fd);
+ close(pri->slave);
pri->slave = -1;
- if(pri->pid<1) {
- printk("slirp_close: no child process to shut down\n");
+ if (pri->pid<1) {
+ printk(UM_KERN_ERR "slirp_close: no child process to shut "
+ "down\n");
return;
}
#if 0
- if(kill(pri->pid, SIGHUP)<0) {
- printk("slirp_close: sending hangup to %d failed (%d)\n",
- pri->pid, errno);
+ if (kill(pri->pid, SIGHUP)<0) {
+ printk(UM_KERN_ERR "slirp_close: sending hangup to %d failed "
+ "(%d)\n", pri->pid, errno);
}
#endif
CATCH_EINTR(err = waitpid(pri->pid, &status, WNOHANG));
- if(err < 0) {
- printk("slirp_close: waitpid returned %d\n", errno);
+ if (err < 0) {
+ printk(UM_KERN_ERR "slirp_close: waitpid returned %d\n", errno);
return;
}
- if(err == 0) {
- printk("slirp_close: process %d has not exited\n", pri->pid);
+ if (err == 0) {
+ printk(UM_KERN_ERR "slirp_close: process %d has not exited\n",
+ pri->pid);
return;
}
@@ -123,7 +126,7 @@ int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri)
static int slirp_set_mtu(int mtu, void *data)
{
- return(mtu);
+ return mtu;
}
const struct net_user_info slirp_user_info = {