move some helpers from extras to /lib/udev

[elogind.git] / udev_db.c

diff --git a/udev_db.c b/udev_db.c
index bf369ac2e66c54b249afeeb35d6fa450c477de77..e2b7b4d9214e6a40b53f27eca451b41e71e56ea0 100644 (file)
--- a/udev_db.c
+++ b/udev_db.c
@@ -35,16 +35,16 @@
 #include "udev.h"
 #include "udev_utils.h"
 #include "logging.h"
-#include "udev_db.h"
 
-#define PATH_TO_NAME_CHAR              '@'
 
 static int devpath_to_db_path(const char *devpath, char *filename, size_t len)
 {
        size_t start, end, i;
 
        /* add location of db files */
-       start = strlcpy(filename, udev_db_path, len);
+       strlcpy(filename, udev_root, len);
+       strlcat(filename, "/", len);
+       start = strlcat(filename, DB_DIR, len);
        end = strlcat(filename, devpath, len);
        if (end > len)
                end = len;
@@ -95,7 +95,7 @@ int udev_db_add_device(struct udevice *udev)
        create_path(filename);
        f = fopen(filename, "w");
        if (f == NULL) {
-               err("unable to create db file '%s'", filename);
+               err("unable to create db file '%s': %s", filename, strerror(errno));
                return -1;
        }
        dbg("storing data for device '%s' in '%s'", udev->devpath, filename);
@@ -129,7 +129,7 @@ int udev_db_get_device(struct udevice *udev, const char *devpath)
 
        devpath_to_db_path(devpath, filename, sizeof(filename));
        if (file_map(filename, &buf, &bufsize) != 0) {
-               dbg("no db file to read '%s'", filename);
+               info("no db file to read %s: %s", filename, strerror(errno));
                return -1;
        }
 
@@ -205,12 +205,16 @@ int udev_db_delete_device(struct udevice *udev)
 
 int udev_db_lookup_name(const char *name, char *devpath, size_t len)
 {
+       char dbpath[PATH_MAX];
        DIR *dir;
        int found = 0;
 
-       dir = opendir(udev_db_path);
+       strlcpy(dbpath, udev_root, sizeof(dbpath));
+       strlcat(dbpath, "/", sizeof(dbpath));
+       strlcat(dbpath, DB_DIR, sizeof(dbpath));
+       dir = opendir(dbpath);
        if (dir == NULL) {
-               err("unable to open udev_db '%s'", udev_db_path);
+               err("unable to open udev_db '%s': %s", dbpath, strerror(errno));
                return -1;
        }
 
@@ -230,12 +234,12 @@ int udev_db_lookup_name(const char *name, char *devpath, size_t len)
                if (ent->d_name[0] == '.')
                        continue;
 
-               snprintf(filename, sizeof(filename), "%s/%s", udev_db_path, ent->d_name);
+               snprintf(filename, sizeof(filename), "%s/%s", dbpath, ent->d_name);
                filename[sizeof(filename)-1] = '\0';
                dbg("looking at '%s'", filename);
 
                if (file_map(filename, &buf, &bufsize) != 0) {
-                       err("unable to read db file '%s'", filename);
+                       err("unable to read db file '%s': %s", filename, strerror(errno));
                        continue;
                }
 
@@ -274,11 +278,15 @@ int udev_db_lookup_name(const char *name, char *devpath, size_t len)
 
 int udev_db_get_all_entries(struct list_head *name_list)
 {
+       char dbpath[PATH_MAX];
        DIR *dir;
 
-       dir = opendir(udev_db_path);
+       strlcpy(dbpath, udev_root, sizeof(dbpath));
+       strlcat(dbpath, "/", sizeof(dbpath));
+       strlcat(dbpath, DB_DIR, sizeof(dbpath));
+       dir = opendir(dbpath);
        if (dir == NULL) {
-               err("unable to open udev_db '%s'", udev_db_path);
+               err("unable to open udev_db '%s': %s", dbpath, strerror(errno));
                return -1;
        }