X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=sidebyside;f=udev_utils.c;h=b650096593308f7e0e7e6c67ff64c5895940cc55;hb=e6764498e7592f216a1895eacc485448fa4a1660;hp=f2534dd331d3ade1d9da474949cdc39e44b02e4d;hpb=03cfa1394fcc2c4386f8af22e5a4d9fdd7cecc50;p=elogind.git

diff --git a/udev_utils.c b/udev_utils.c
index f2534dd33..b65009659 100644
--- a/udev_utils.c
+++ b/udev_utils.c
@@ -31,6 +31,7 @@
 #include <sys/mman.h>
 #include <sys/utsname.h>
 
+#include "udev_libc_wrapper.h"
 #include "udev.h"
 #include "logging.h"
 #include "udev_utils.h"
@@ -42,27 +43,28 @@ int udev_init_device(struct udevice *udev, const char* devpath, const char *subs
 	char *pos;
 
 	memset(udev, 0x00, sizeof(struct udevice));
+	INIT_LIST_HEAD(&udev->symlink_list);
 
 	if (subsystem)
-		strfieldcpy(udev->subsystem, subsystem);
+		strlcpy(udev->subsystem, subsystem, sizeof(udev->subsystem));
 
 	if (devpath) {
-		strfieldcpy(udev->devpath, devpath);
+		strlcpy(udev->devpath, devpath, sizeof(udev->devpath));
 		no_trailing_slash(udev->devpath);
 
 		if (strncmp(udev->devpath, "/block/", 7) == 0)
-			udev->type = BLOCK;
+			udev->type = DEV_BLOCK;
 		else if (strncmp(udev->devpath, "/class/net/", 11) == 0)
-			udev->type = NET;
+			udev->type = DEV_NET;
 		else if (strncmp(udev->devpath, "/class/", 7) == 0)
-			udev->type = CLASS;
+			udev->type = DEV_CLASS;
 		else if (strncmp(udev->devpath, "/devices/", 9) == 0)
-			udev->type = PHYSDEV;
+			udev->type = DEV_DEVICE;
 
 		/* get kernel name */
 		pos = strrchr(udev->devpath, '/');
 		if (pos) {
-			strfieldcpy(udev->kernel_name, &pos[1]);
+			strlcpy(udev->kernel_name, &pos[1], sizeof(udev->kernel_name));
 			dbg("kernel_name='%s'", udev->kernel_name);
 
 			/* Some block devices have '!' in their name, change that to '/' */
@@ -77,7 +79,7 @@ int udev_init_device(struct udevice *udev, const char* devpath, const char *subs
 			pos = &udev->kernel_name[strlen(udev->kernel_name)];
 			while (isdigit(pos[-1]))
 				pos--;
-			strfieldcpy(udev->kernel_number, pos);
+			strlcpy(udev->kernel_number, pos, sizeof(udev->kernel_number));
 			dbg("kernel_number='%s'", udev->kernel_number);
 		}
 	}
@@ -89,6 +91,17 @@ int udev_init_device(struct udevice *udev, const char* devpath, const char *subs
 	return 0;
 }
 
+void udev_cleanup_device(struct udevice *udev)
+{
+	struct name_entry *name_loop;
+	struct name_entry *temp_loop;
+
+	list_for_each_entry_safe(name_loop, temp_loop, &udev->symlink_list, node) {
+		list_del(&name_loop->node);
+		free(name_loop);
+	}
+}
+
 int kernel_release_satisfactory(unsigned int version, unsigned int patchlevel, unsigned int sublevel)
 {
 	static unsigned int kversion = 0;
@@ -114,7 +127,7 @@ int kernel_release_satisfactory(unsigned int version, unsigned int patchlevel, u
 
 int create_path(const char *path)
 {
-	char p[NAME_SIZE];
+	char p[PATH_SIZE];
 	char *pos;
 	struct stat stats;
 
@@ -183,19 +196,19 @@ int parse_get_pair(char **orig_string, char **left, char **right)
 		return -ENODEV;
 
 	/* take the right side and strip off the '"' */
-	while (isspace(*string))
+	while (isspace(string[0]))
 		++string;
-	if (*string == '"')
+	if (string[0] == '"')
 		++string;
 	else
 		return -ENODEV;
 
 	temp = strsep(&string, "\"");
-	if (!string || *temp == '\0')
+	if (!string || temp[0] == '\0')
 		return -ENODEV;
 	*right = temp;
 	*orig_string = string;
-	
+
 	return 0;
 }
 
@@ -259,13 +272,7 @@ void no_trailing_slash(char *path)
 		path[--len] = '\0';
 }
 
-struct name_entry {
-	struct list_head node;
-	char name[NAME_SIZE];
-};
-
-/* sort files in lexical order */
-static int name_list_add(struct list_head *name_list, const char *name, int sort)
+int name_list_add(struct list_head *name_list, const char *name, int sort)
 {
 	struct name_entry *loop_name;
 	struct name_entry *new_name;
@@ -286,13 +293,15 @@ static int name_list_add(struct list_head *name_list, const char *name, int sort
 		return -ENOMEM;
 	}
 
-	strfieldcpy(new_name->name, name);
+	strlcpy(new_name->name, name, sizeof(new_name->name));
 	list_add_tail(&new_name->node, &loop_name->node);
+
 	return 0;
 }
 
 /* calls function for every file found in specified directory */
-int call_foreach_file(file_fnct_t fnct, const char *dirname, const char *suffix, void *data)
+int call_foreach_file(int (*handler_function)(struct udevice *udev, const char *string),
+		      struct udevice *udev, const char *dirname, const char *suffix)
 {
 	struct dirent *ent;
 	DIR *dir;
@@ -330,12 +339,12 @@ int call_foreach_file(file_fnct_t fnct, const char *dirname, const char *suffix,
 
 	/* call function for every file in the list */
 	list_for_each_entry_safe(loop_file, tmp_file, &file_list, node) {
-		char filename[NAME_SIZE];
+		char filename[PATH_SIZE];
 
-		snprintf(filename, NAME_SIZE, "%s/%s", dirname, loop_file->name);
-		filename[NAME_SIZE-1] = '\0';
+		snprintf(filename, sizeof(filename), "%s/%s", dirname, loop_file->name);
+		filename[sizeof(filename)-1] = '\0';
 
-		fnct(filename, data);
+		handler_function(udev, filename);
 
 		list_del(&loop_file->node);
 		free(loop_file);