diff options
Diffstat (limited to 'pattest.c')
| -rw-r--r-- | pattest.c | 51 |
1 files changed, 31 insertions, 20 deletions
@@ -33,6 +33,7 @@ #include <linux/types.h> #include <linux/ppp_defs.h> #include <sys/ioctl.h> +#include <sys/stat.h> #include <unistd.h> #include <stdlib.h> #include "bittest.h" @@ -64,30 +65,40 @@ void print_packet(unsigned char *buf, int len) printf("}\n"); } -int channel_open(char *name, int *bs) +int channel_open(const char *name, int *bs) { - int channo; - int fd; - struct dahdi_params tp; - char *dev; - - channo = atoi(name); - /* channo==0: The user passed a file name to be opened. */ - dev = channo ? DEVICE : name; - - fd = open(dev, O_RDWR, 0600); - - if (fd < 0) { - perror(DEVICE); + int channo, fd; + struct dahdi_params tp; + struct stat filestat; + + /* stat file, if character device, open it */ + channo = strtoul(name, NULL, 10); + fd = stat(name, &filestat); + if (!fd && S_ISCHR(filestat.st_mode)) { + fd = open(name, O_RDWR, 0600); + if (fd < 0) { + perror(name); + return -1; + } + /* try out the dahdi_specify interface */ + } else if (channo > 0) { + fd = open(DEVICE, O_RDWR, 0600); + if (fd < 0) { + perror(DEVICE); + return -1; + } + if (ioctl(fd, DAHDI_SPECIFY, &channo) < 0) { + perror("DAHDI_SPECIFY ioctl failed"); + return -1; + } + /* die */ + } else { + fprintf(stderr, "Specified channel is not a valid character " + "device or channel number"); return -1; } - /* If we got a channel number, get it from /dev/dahdi/channel: */ - if(channo && ioctl(fd, DAHDI_SPECIFY, &channo) < 0) { - perror("SPECIFY"); - return -1; - } - if(ioctl(fd, DAHDI_SET_BLOCKSIZE, bs) < 0) { + if (ioctl(fd, DAHDI_SET_BLOCKSIZE, bs) < 0) { perror("SET_BLOCKSIZE"); return -1; } |