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udevadm: info - resolve devpath if symlink is given

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This commit is contained in:
Kay Sievers 2008-03-29 16:12:41 +01:00
parent ab815cae7f
commit e7e194a088
2 changed files with 23 additions and 1 deletions
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2
udev_db.c
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@ -37,7 +37,7 @@ static size_t devpath_to_db_path(const char *devpath, char *filename, size_t len
{
size_t start;
/* add location of db files */
/* translate to location of db file */
strlcpy(filename, udev_root, len);
start = strlcat(filename, "/"DB_DIR"/", len);
strlcat(filename, devpath, len);

22
udevinfo.c
View File

@ -281,6 +281,7 @@ int udevinfo(int argc, char *argv[], char *envp[])
strlcpy(name, &optarg[strlen(udev_root)+1], sizeof(name));
else
strlcpy(name, optarg, sizeof(name));
remove_trailing_chars(name, '/');
dbg("name: %s", name);
break;
case 'p':
@ -289,6 +290,27 @@ int udevinfo(int argc, char *argv[], char *envp[])
strlcpy(path, &optarg[strlen(sysfs_path)], sizeof(path));
else
strlcpy(path, optarg, sizeof(path));
remove_trailing_chars(path, '/');
/* possibly resolve to real devpath */
if (sysfs_resolve_link(path, sizeof(path)) != 0) {
char temp[PATH_SIZE];
char *pos;
/* also check if the parent is a link */
strlcpy(temp, path, sizeof(temp));
pos = strrchr(temp, '/');
if (pos != 0) {
char tail[PATH_SIZE];
strlcpy(tail, pos, sizeof(tail));
pos[0] = '\0';
if (sysfs_resolve_link(temp, sizeof(temp)) == 0) {
strlcpy(path, temp, sizeof(path));
strlcat(path, tail, sizeof(path));
}
}
}
dbg("path: %s", path);
break;
case 'q':