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head/stand/common/dev_net.c
| Show First 20 Lines • Show All 116 Lines • ▼ Show 20 Lines | |||||
| * This opens the low-level device and sets f->f_devdata. | * This opens the low-level device and sets f->f_devdata. | ||||
| * This is declared with variable arguments... | * This is declared with variable arguments... | ||||
| */ | */ | ||||
| static int | static int | ||||
| net_open(struct open_file *f, ...) | net_open(struct open_file *f, ...) | ||||
| { | { | ||||
| struct iodesc *d; | struct iodesc *d; | ||||
| va_list args; | va_list args; | ||||
| char *devname; /* Device part of file name (or NULL). */ | struct devdesc *dev; | ||||
| const char *devname; /* Device part of file name (or NULL). */ | |||||
| int error = 0; | int error = 0; | ||||
| va_start(args, f); | va_start(args, f); | ||||
| devname = va_arg(args, char*); | dev = va_arg(args, struct devdesc *); | ||||
| va_end(args); | va_end(args); | ||||
| devname = dev->d_dev->dv_name; | |||||
| /* Before opening another interface, close the previous one first. */ | /* Before opening another interface, close the previous one first. */ | ||||
| if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0) | if (netdev_sock >= 0 && strcmp(devname, netdev_name) != 0) | ||||
| net_cleanup(); | net_cleanup(); | ||||
| /* On first open, do netif open, mount, etc. */ | /* On first open, do netif open, mount, etc. */ | ||||
| if (netdev_opens == 0) { | if (netdev_opens == 0) { | ||||
| /* Find network interface. */ | /* Find network interface. */ | ||||
| if (netdev_sock < 0) { | if (netdev_sock < 0) { | ||||
| netdev_sock = netif_open(devname); | netdev_sock = netif_open(dev); | ||||
| if (netdev_sock < 0) { | if (netdev_sock < 0) { | ||||
| printf("net_open: netif_open() failed\n"); | printf("net_open: netif_open() failed\n"); | ||||
| return (ENXIO); | return (ENXIO); | ||||
| } | } | ||||
| netdev_name = strdup(devname); | netdev_name = strdup(devname); | ||||
| #ifdef NETIF_DEBUG | #ifdef NETIF_DEBUG | ||||
| if (debug) | if (debug) | ||||
| printf("net_open: netif_open() succeeded\n"); | printf("net_open: netif_open() succeeded\n"); | ||||
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