From 03fd7a3ad3438c7ae4525215ac58c3d94133cc35 Mon Sep 17 00:00:00 2001
From: "kay.sievers@vrfy.org" <kay.sievers@vrfy.org>
Date: Sat, 5 Mar 2005 06:50:09 +0100
Subject: [PATCH] [PATCH] replace weird defines by real code

---
 namedev.c     | 39 +++++++++++++++++++++------------------
 udev_add.c    |  4 ++--
 udev_remove.c |  4 ++--
 udev_utils.h  | 20 +-------------------
 4 files changed, 26 insertions(+), 41 deletions(-)

diff --git a/namedev.c b/namedev.c
index 91841571..49f9e4b1 100644
--- a/namedev.c
+++ b/namedev.c
@@ -171,15 +171,10 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
 {
 	char temp[NAME_SIZE];
 	char temp2[NAME_SIZE];
-	char *tail;
-	char *pos;
-	char *attr;
+	char *tail, *pos, *cpos, *attr, *rest;
 	int len;
 	int i;
 	char c;
-	char *spos;
-	char *rest;
-	int slen;
 	struct sysfs_attribute *tmpattr;
 	unsigned int next_free_number;
 	struct sysfs_class_device *class_dev_parent;
@@ -217,12 +212,14 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
 			dbg("substitute kernel number '%s'", udev->kernel_number);
 				break;
 		case 'm':
-			strintcatmax(string, minor(udev->devt), maxsize);
-			dbg("substitute minor number '%u'", minor(udev->devt));
+			sprintf(temp2, "%d", minor(udev->devt));
+			strfieldcatmax(string, temp2, maxsize);
+			dbg("substitute minor number '%s'", temp2);
 			break;
 		case 'M':
-			strintcatmax(string, major(udev->devt), maxsize);
-			dbg("substitute major number '%u'", major(udev->devt));
+			sprintf(temp2, "%d", major(udev->devt));
+			strfieldcatmax(string, temp2, maxsize);
+			dbg("substitute major number '%s'", temp2);
 			break;
 		case 'c':
 			if (udev->program_result[0] == '\0')
@@ -232,19 +229,25 @@ static void apply_format(struct udevice *udev, char *string, size_t maxsize,
 			if (attr != NULL)
 				i = strtoul(attr, &rest, 10);
 			if (i > 0) {
-				foreach_strpart(udev->program_result, " \n\r", spos, slen) {
-					i--;
-					if (i == 0)
-						break;
+				dbg("request part #%d of result string", i);
+				cpos = udev->program_result;
+				while (--i) {
+					while (cpos[0] != '\0' && !isspace(cpos[0]))
+						cpos++;
+					while (isspace(cpos[0]))
+						cpos++;
 				}
 				if (i > 0) {
 					dbg("requested part of result string not found");
 					break;
 				}
-				if (rest[0] == '+')
-					strfieldcpy(temp2, spos);
-				else
-					strfieldcpymax(temp2, spos, slen+1);
+				strfieldcpy(temp2, cpos);
+				/* %{2+}c copies the whole string from the second part on */
+				if (rest[0] != '+') {
+					cpos = strchr(temp2, ' ');
+					if (cpos)
+						cpos[0] = '\0';
+				}
 				strfieldcatmax(string, temp2, maxsize);
 				dbg("substitute part of result string '%s'", temp2);
 			} else {
diff --git a/udev_add.c b/udev_add.c
index 7e0c57fc..aa19d874 100644
--- a/udev_add.c
+++ b/udev_add.c
@@ -185,8 +185,8 @@ static int create_node(struct udevice *udev, struct sysfs_class_device *class_de
 			for (i = 1; i <= udev->partitions; i++) {
 				dev_t part_devt;
 
-				strfieldcpy(partitionname, filename);
-				strintcat(partitionname, i);
+				snprintf(partitionname, NAME_SIZE, "%s%d", filename, i);
+				partitionname[NAME_SIZE-1] = '\0';
 				part_devt = makedev(major(udev->devt), minor(udev->devt)+1);
 				udev_make_node(udev, partitionname, part_devt, udev->mode, uid, gid);
 			}
diff --git a/udev_remove.c b/udev_remove.c
index 756eef04..7a6c032d 100644
--- a/udev_remove.c
+++ b/udev_remove.c
@@ -103,8 +103,8 @@ static int delete_node(struct udevice *udev)
 			return -1;
 		}
 		for (i = 1; i <= num; i++) {
-			strfieldcpy(partitionname, filename);
-			strintcat(partitionname, i);
+			snprintf(partitionname, NAME_SIZE, "%s%d", filename, i);
+			partitionname[NAME_SIZE-1] = '\0';
 			unlink_secure(partitionname);
 		}
 	}
diff --git a/udev_utils.h b/udev_utils.h
index 2f2c2497..3bb1b253 100644
--- a/udev_utils.h
+++ b/udev_utils.h
@@ -48,24 +48,6 @@ do { \
 	strncat(to, from, maxsize - strlen(to)-1); \
 } while (0)
 
-#define strintcat(to, i) \
-do { \
-	to[sizeof(to)-1] = '\0'; \
-	snprintf((to) + strlen(to), sizeof(to) - strlen(to)-1, "%u", i); \
-} while (0)
-
-#define strintcatmax(to, i, maxsize) \
-do { \
-	to[maxsize-1] = '\0'; \
-	snprintf((to) + strlen(to), maxsize - strlen(to)-1, "%u", i); \
-} while (0)
-
-#define foreach_strpart(str, separator, pos, len) \
-	for(pos = str, len = 0; \
-	    (pos) < ((str) + strlen(str)); \
-	    pos = pos + len + strspn(pos, separator), len = strcspn(pos, separator)) \
-		if (len > 0)
-
 #ifdef asmlinkage
 # undef asmlinkage
 #endif
@@ -73,7 +55,7 @@ do { \
 # define asmlinkage	__attribute__((regparm(0)))
 #endif
 #ifndef asmlinkage
-# define asmlinkage	/* nothing */
+# define asmlinkage
 #endif
 
 struct name_entry {
-- 
2.39.5