diff options
| -rw-r--r-- | udevtest.c | 45 |
1 files changed, 43 insertions, 2 deletions
diff --git a/udevtest.c b/udevtest.c index 9d73996bcf..9868c9bcd3 100644 --- a/udevtest.c +++ b/udevtest.c @@ -24,6 +24,7 @@ #include <unistd.h> #include <errno.h> #include <ctype.h> +#include <fcntl.h> #include <signal.h> #include <syslog.h> #include <getopt.h> @@ -48,6 +49,45 @@ void log_message (int priority, const char *format, ...) } #endif +static int import_uevent_var(const char *devpath) +{ + char path[PATH_SIZE]; + static char value[4096]; /* must stay, used with putenv */ + ssize_t size; + int fd; + char *key; + char *next; + int rc = -1; + + /* read uevent file */ + strlcpy(path, sysfs_path, sizeof(path)); + strlcat(path, devpath, sizeof(path)); + strlcat(path, "/uevent", sizeof(path)); + fd = open(path, O_RDONLY); + if (fd < 0) + goto out; + size = read(fd, value, sizeof(value)); + close(fd); + if (size < 0) + goto out; + value[size] = '\0'; + + /* import keys into environment */ + key = value; + while (key[0] != '\0') { + next = strchr(key, '\n'); + if (next == NULL) + goto out; + next[0] = '\0'; + info("import into environment: '%s'", key); + putenv(key); + key = &next[1]; + } + rc = 0; +out: + return rc; +} + int main(int argc, char *argv[], char *envp[]) { int force = 0; @@ -142,10 +182,11 @@ int main(int argc, char *argv[], char *envp[]) setenv("DEVPATH", udev->dev->devpath, 1); setenv("SUBSYSTEM", udev->dev->subsystem, 1); setenv("ACTION", udev->action, 1); + import_uevent_var(udev->dev->devpath); printf("This program is for debugging only, it does not run any program,\n" - "specified by a RUN key. It may show incorrect results, if rules\n" - "match against subsystem specfic kernel event variables.\n" + "specified by a RUN key. It may show incorrect results, because\n" + "some values may be different, or not available at a simulation run.\n" "\n"); info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem); |