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Diffstat (limited to 'arch/um/drivers/net_user.c')
-rw-r--r--arch/um/drivers/net_user.c80
1 files changed, 37 insertions, 43 deletions
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
index 0a7786e..107c5e4 100644
--- a/arch/um/drivers/net_user.c
+++ b/arch/um/drivers/net_user.c
@@ -22,13 +22,14 @@ int tap_open_common(void *dev, char *gate_addr)
{
int tap_addr[4];
- if(gate_addr == NULL) return(0);
+ if(gate_addr == NULL)
+ return 0;
if(sscanf(gate_addr, "%d.%d.%d.%d", &tap_addr[0],
&tap_addr[1], &tap_addr[2], &tap_addr[3]) != 4){
printk("Invalid tap IP address - '%s'\n", gate_addr);
- return(-EINVAL);
+ return -EINVAL;
}
- return(0);
+ return 0;
}
void tap_check_ips(char *gate_addr, unsigned char *eth_addr)
@@ -94,25 +95,25 @@ int net_read(int fd, void *buf, int len)
n = os_read_file(fd, buf, len);
if(n == -EAGAIN)
- return(0);
+ return 0;
else if(n == 0)
- return(-ENOTCONN);
- return(n);
+ return -ENOTCONN;
+ return n;
}
int net_recvfrom(int fd, void *buf, int len)
{
int n;
- while(((n = recvfrom(fd, buf, len, 0, NULL, NULL)) < 0) &&
- (errno == EINTR)) ;
-
+ CATCH_EINTR(n = recvfrom(fd, buf, len, 0, NULL, NULL));
if(n < 0){
- if(errno == EAGAIN) return(0);
- return(-errno);
+ if(errno == EAGAIN)
+ return 0;
+ return -errno;
}
- else if(n == 0) return(-ENOTCONN);
- return(n);
+ else if(n == 0)
+ return -ENOTCONN;
+ return n;
}
int net_write(int fd, void *buf, int len)
@@ -122,37 +123,41 @@ int net_write(int fd, void *buf, int len)
n = os_write_file(fd, buf, len);
if(n == -EAGAIN)
- return(0);
+ return 0;
else if(n == 0)
- return(-ENOTCONN);
- return(n);
+ return -ENOTCONN;
+ return n;
}
int net_send(int fd, void *buf, int len)
{
int n;
- while(((n = send(fd, buf, len, 0)) < 0) && (errno == EINTR)) ;
+ CATCH_EINTR(n = send(fd, buf, len, 0));
if(n < 0){
- if(errno == EAGAIN) return(0);
- return(-errno);
+ if(errno == EAGAIN)
+ return 0;
+ return -errno;
}
- else if(n == 0) return(-ENOTCONN);
- return(n);
+ else if(n == 0)
+ return -ENOTCONN;
+ return n;
}
int net_sendto(int fd, void *buf, int len, void *to, int sock_len)
{
int n;
- while(((n = sendto(fd, buf, len, 0, (struct sockaddr *) to,
- sock_len)) < 0) && (errno == EINTR)) ;
+ CATCH_EINTR(n = sendto(fd, buf, len, 0, (struct sockaddr *) to,
+ sock_len));
if(n < 0){
- if(errno == EAGAIN) return(0);
- return(-errno);
+ if(errno == EAGAIN)
+ return 0;
+ return -errno;
}
- else if(n == 0) return(-ENOTCONN);
- return(n);
+ else if(n == 0)
+ return -ENOTCONN;
+ return n;
}
struct change_pre_exec_data {
@@ -176,7 +181,7 @@ static int change_tramp(char **argv, char *output, int output_len)
err = os_pipe(fds, 1, 0);
if(err < 0){
printk("change_tramp - pipe failed, err = %d\n", -err);
- return(err);
+ return err;
}
pe_data.close_me = fds[0];
pe_data.stdout = fds[1];
@@ -190,7 +195,7 @@ static int change_tramp(char **argv, char *output, int output_len)
if (pid > 0)
CATCH_EINTR(err = waitpid(pid, NULL, 0));
- return(pid);
+ return pid;
}
static void change(char *dev, char *what, unsigned char *addr,
@@ -241,26 +246,15 @@ char *split_if_spec(char *str, ...)
va_start(ap, str);
while((arg = va_arg(ap, char **)) != NULL){
if(*str == '\0')
- return(NULL);
+ return NULL;
end = strchr(str, ',');
if(end != str)
*arg = str;
if(end == NULL)
- return(NULL);
+ return NULL;
*end++ = '\0';
str = end;
}
va_end(ap);
- return(str);
+ return str;
}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
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