X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevinfo.c;h=2832ea0ee368677ca7325384bb7655108c7fd980;hp=3146a96119e73826550b528f8061b12aacec4770;hb=c48622cc25bad59aadb9f8e1d66c6ed5fb85cbe0;hpb=27b77df44daebbd7597c572343105c16de099233 diff --git a/udevinfo.c b/udevinfo.c index 3146a9611..2832ea0ee 100644 --- a/udevinfo.c +++ b/udevinfo.c @@ -25,6 +25,9 @@ #include #include #include +#include +#include +#include #include "udev.h" @@ -55,10 +58,23 @@ static void print_all_attributes(const char *devpath, const char *key) dir = opendir(path); if (dir != NULL) { for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) { + struct stat statbuf; + char filename[PATH_SIZE]; char *attr_value; char value[NAME_SIZE]; size_t len; + if (dent->d_name[0] == '.') + continue; + + strlcpy(filename, path, sizeof(filename)); + strlcat(filename, "/", sizeof(filename)); + strlcat(filename, dent->d_name, sizeof(filename)); + if (lstat(filename, &statbuf) != 0) + continue; + if (S_ISLNK(statbuf.st_mode)) + continue; + attr_value = sysfs_attr_get_value(devpath, dent->d_name); if (attr_value == NULL) continue; @@ -88,6 +104,10 @@ static int print_device_chain(const char *devpath) { struct sysfs_device *dev; + dev = sysfs_device_get(devpath); + if (dev == NULL) + return -1; + printf("\n" "Udevinfo starts with the device specified by the devpath and then\n" "walks up the chain of parent devices. It prints for every device\n" @@ -96,10 +116,6 @@ static int print_device_chain(const char *devpath) "and the attributes from one single parent device.\n" "\n"); - dev = sysfs_device_get(devpath); - if (dev == NULL) - return -1; - printf(" looking at device '%s':\n", dev->devpath); printf(" KERNEL==\"%s\"\n", dev->kernel); printf(" SUBSYSTEM==\"%s\"\n", dev->subsystem); @@ -113,7 +129,7 @@ static int print_device_chain(const char *devpath) break; printf(" looking at parent device '%s':\n", dev->devpath); printf(" KERNELS==\"%s\"\n", dev->kernel); - printf(" SUBSYTEMS==\"%s\"\n", dev->subsystem); + printf(" SUBSYSTEMS==\"%s\"\n", dev->subsystem); printf(" DRIVERS==\"%s\"\n", dev->driver); print_all_attributes(dev->devpath, "ATTRS"); @@ -167,6 +183,18 @@ int main(int argc, char *argv[], char *envp[]) struct udevice *udev; int root = 0; + static const struct option options[] = { + { "name", 1, NULL, 'n' }, + { "path", 1, NULL, 'p' }, + { "query", 1, NULL, 'q' }, + { "attribute-walk", 0, NULL, 'a' }, + { "export-db", 0, NULL, 'e' }, + { "root", 0, NULL, 'r' }, + { "version", 0, NULL, 'V' }, + { "help", 0, NULL, 'h' }, + {} + }; + enum action_type { ACTION_NONE, ACTION_QUERY, @@ -199,9 +227,8 @@ int main(int argc, char *argv[], char *envp[]) } /* get command line options */ - opterr = 0; while (1) { - option = getopt(argc, argv, ":aden:p:q:rVh"); + option = getopt_long(argc, argv, "aden:p:q:rVh", options, NULL); if (option == -1) break; @@ -267,30 +294,25 @@ int main(int argc, char *argv[], char *envp[]) printf("udevinfo, version %s\n", UDEV_VERSION); goto exit; case 'h': - printf("Usage: udevinfo [-anpqrVh]\n" - " -q TYPE query database for the specified value:\n" - " 'name' name of device node\n" - " 'symlink' pointing to node\n" - " 'path' sysfs device path\n" - " 'env' the device related imported environment\n" - " 'all' all values\n" + printf("Usage: udevinfo OPTIONS\n" + " --query= query database for the specified value:\n" + " name name of device node\n" + " symlink pointing to node\n" + " path sysfs device path\n" + " env the device related imported environment\n" + " all all values\n" "\n" - " -p PATH sysfs device path used for query or chain\n" - " -n NAME node/symlink name used for query\n" + " --path= sysfs device path used for query or chain\n" + " --name= node or symlink name used for query\n" "\n" - " -r prepend to query result or print udev_root\n" - " -a print all SYSFS_attributes along the device chain\n" - " -e export the content of the udev database\n" - " -V print udev version\n" - " -h print this help text\n" + " --root prepend to query result or print udev_root\n" + " --attribute-walk print all SYSFS_attributes along the device chain\n" + " --export-db export the content of the udev database\n" + " --verision print udev version\n" + " --help print this text\n" "\n"); goto exit; - case ':': - fprintf(stderr, "missing argument for '%c'\n", optopt); - goto exit; - case '?': default: - fprintf(stderr, "unrecognized option '%c'\n", optopt); goto exit; } } @@ -315,7 +337,7 @@ int main(int argc, char *argv[], char *envp[]) } udev_db_get_device(udev, devpath); } else { - fprintf(stderr, "query needs device path(-p) or node name(-n) specified\n"); + fprintf(stderr, "query needs --path or node --name specified\n"); rc = 4; goto exit; } @@ -355,7 +377,11 @@ int main(int argc, char *argv[], char *envp[]) break; case ACTION_ATTRIBUTE_WALK: if (path[0] != '\0') { - print_device_chain(path); + if (print_device_chain(path) != 0) { + fprintf(stderr, "device not found\n"); + rc = 4; + goto exit; + } } else if (name[0] != '\0') { char devpath[PATH_SIZE]; @@ -364,9 +390,13 @@ int main(int argc, char *argv[], char *envp[]) rc = 4; goto exit; } - print_device_chain(devpath); + if (print_device_chain(devpath) != 0) { + fprintf(stderr, "device not found\n"); + rc = 4; + goto exit; + } } else { - fprintf(stderr, "attribute walk needs device path(-p) or node name(-n) specified\n"); + fprintf(stderr, "attribute walk needs --path or node --name specified\n"); rc = 5; goto exit; }