X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev_libc_wrapper.c;h=fe38993cd729be146090b76b15b439db966ef64f;hp=23cb7b43168bc9ff7c3619bcf1440627f67f8b42;hb=d7363ee14c3ea46611d3e706a3e198e07869afc3;hpb=8a4c0c32f4252efb0f0adbf5cdc0261d359cd568

diff --git a/udev_libc_wrapper.c b/udev_libc_wrapper.c
index 23cb7b431..fe38993cd 100644
--- a/udev_libc_wrapper.c
+++ b/udev_libc_wrapper.c
@@ -58,7 +58,10 @@ size_t strlcpy(char *dst, const char *src, size_t size)
 		bytes++;
 	}
 
-	*q = '\0';
+	/* If size == 0 there is no space for a final null... */
+	if (size)
+		*q = '\0';
+
 	return bytes;
 }
 
@@ -99,7 +102,7 @@ uid_t lookup_user(const char *user)
 
 	pw = getpwnam(user);
 	if (pw == NULL)
-		dbg("specified user unknown '%s'", user);
+		info("specified user unknown '%s'", user);
 	else
 		uid = pw->pw_uid;
 
@@ -113,7 +116,7 @@ gid_t lookup_group(const char *group)
 
 	gr = getgrnam(group);
 	if (gr == NULL)
-		dbg("specified group unknown '%s'", group);
+		info("specified group unknown '%s'", group);
 	else
 		gid = gr->gr_gid;
 
@@ -141,7 +144,7 @@ static unsigned long get_id_by_name(const char *uname, const char *dbfile)
 	char *tail;
 
 	if (file_map(dbfile, &buf, &bufsize) != 0) {
-		dbg("can't open '%s' as db file", dbfile);
+		err("can't open '%s' as db file: %s", dbfile, strerror(errno));
 		return 0;
 	}
 	dbg("search '%s' in '%s'", uname, dbfile);
@@ -156,7 +159,8 @@ static unsigned long get_id_by_name(const char *uname, const char *dbfile)
 		if (count >= sizeof(line))
 			continue;
 
-		strlcpy(line, bufline, count);
+		memcpy(line, bufline, count-1);
+		line[count-1] = '\0';
 		pos = line;
 
 		/* get name */