X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev%2Flib%2Flibudev-util.c;h=2b8cda59f6e30cb41b2d6c6bfee3732f5051fe45;hp=b628fdd44c33a35eea72535b029838c19f0ee76d;hb=9379b7c16dd3b2f11d9e69c063706037ae001a0a;hpb=4b09a2fc4383f191d96a8d6134b95a4b84aef931

diff --git a/udev/lib/libudev-util.c b/udev/lib/libudev-util.c
index b628fdd44..2b8cda59f 100644
--- a/udev/lib/libudev-util.c
+++ b/udev/lib/libudev-util.c
@@ -101,12 +101,12 @@ int util_log_priority(const char *priority)
 	return 0;
 }
 
-size_t util_path_encode(char *s, size_t len)
+size_t util_path_encode(char *s, size_t size)
 {
-	char t[(len * 3)+1];
+	char t[(size * 4)+1];
 	size_t i, j;
 
-	for (i = 0, j = 0; s[i] != '\0'; i++) {
+	for (i = 0, j = 0; s[i] != '\0' && i < size; i++) {
 		if (s[i] == '/') {
 			memcpy(&t[j], "\\x2f", 4);
 			j += 4;
@@ -118,11 +118,12 @@ size_t util_path_encode(char *s, size_t len)
 			j++;
 		}
 	}
-	if (len == 0)
-		return j;
-	i = (j < len - 1) ? j : len - 1;
-	memcpy(s, t, i);
-	s[i] = '\0';
+	if (i >= size)
+		return 0;
+	if (j >= size)
+		return 0;
+	memcpy(s, t, j);
+	s[j] = '\0';
 	return j;
 }
 
@@ -134,7 +135,7 @@ size_t util_path_decode(char *s)
 		if (memcmp(&s[i], "\\x2f", 4) == 0) {
 			s[j] = '/';
 			i += 4;
-		}else if (memcmp(&s[i], "\\x5c", 4) == 0) {
+		} else if (memcmp(&s[i], "\\x5c", 4) == 0) {
 			s[j] = '\\';
 			i += 4;
 		} else {
@@ -460,3 +461,16 @@ void util_set_fd_cloexec(int fd)
 		flags |= FD_CLOEXEC;
 	fcntl(fd, F_SETFD, flags);
 }
+
+unsigned int util_string_hash32(const char *str)
+{
+	unsigned int hash = 0;
+
+	while (str[0] != '\0') {
+		hash += str[0] << 4;
+		hash += str[0] >> 4;
+		hash *= 11;
+		str++;
+	}
+	return hash;
+}