Vodz' last_patch57:

Hi, Erik.

    my_getpw(uid/gid) and applets used it have problem:
    if username for uid not found, applets can`t detect it
    (but code pessent). Also "%8ld " format is bad:
    spaces not required (applets have self format
    or spec format (tar applet) and overflow for "id" applet...)
    This problem also pressent in stable version.
    Patch for unstable in attach.

    --w
    vodz

archival/tar.c

@@ -244,12 +244,10 @@ static inline int writeTarHeader(struct TarBallInfo *tbInfo,
 			TAR_MAGIC_LEN + TAR_VERSION_LEN);
 
 	/* Enter the user and group names (default to root if it fails) */
-	my_getpwuid(header.uname, statbuf->st_uid);
-	if (!*header.uname)
-		strcpy(header.uname, "root");
-	my_getgrgid(header.gname, statbuf->st_gid);
-	if (!*header.uname)
+	if (my_getpwuid(header.uname, statbuf->st_uid) == NULL)
 		strcpy(header.uname, "root");
+	if (my_getgrgid(header.gname, statbuf->st_gid) == NULL)
+		strcpy(header.gname, "root");
 
 	if (tbInfo->hlInfo) {
 		/* This is a hard link */

coreutils/id.c

@@ -68,8 +68,7 @@ extern int id_main(int argc, char **argv)
 			my_getgrgid(group, getegid());
 		}
 	} else {
-		strncpy(user, argv[optind], 8);
-		user[8] = '\0';
+		safe_strncpy(user, argv[optind], sizeof(user));
 	    gid = my_getpwnamegid(user);
 		my_getgrgid(group, gid);
 	}
@@ -78,12 +77,12 @@ extern int id_main(int argc, char **argv)
 	grnam=my_getgrnam(group);
 
 	if (no_group) {
-		if(name_not_number && user)
+		if(name_not_number)
 			puts(user);
 		else
 			printf("%ld\n", pwnam);
 	} else if (no_user) {
-		if(name_not_number && group)
+		if(name_not_number)
 			puts(group);
 		else
 			printf("%ld\n", grnam);

coreutils/logname.c

@@ -32,8 +32,7 @@ extern int logname_main(int argc, char **argv)
 	if (argc > 1)
 		show_usage();
 
-	my_getpwuid(user, geteuid());
-	if (*user) {
+	if (my_getpwuid(user, geteuid())) {
 		puts(user);
 		return EXIT_SUCCESS;
 	}

coreutils/whoami.c

@@ -35,8 +35,7 @@ extern int whoami_main(int argc, char **argv)
 	if (argc > 1)
 		show_usage();
 
-	my_getpwuid(user, uid);
-	if (*user) {
+	if (my_getpwuid(user, uid)) {
 		puts(user);
 		return EXIT_SUCCESS;
 	}

include/libbb.h

@@ -165,8 +165,8 @@ extern unsigned long parse_number(const char *numstr,
  * increases target size and is often not needed embedded systems.  */
 extern long my_getpwnam(const char *name);
 extern long my_getgrnam(const char *name);
-extern void my_getpwuid(char *name, long uid);
-extern void my_getgrgid(char *group, long gid);
+extern char * my_getpwuid(char *name, long uid);
+extern char * my_getgrgid(char *group, long gid);
 extern long my_getpwnamegid(const char *name);
 
 extern int device_open(char *device, int mode);

libbb/my_getgrgid.c

@@ -27,15 +27,17 @@
 
 
 /* gets a groupname given a gid */
-void my_getgrgid(char *group, long gid)
+char * my_getgrgid(char *group, long gid)
 {
 	struct group *mygroup;
 
 	mygroup  = getgrgid(gid);
-	if (mygroup==NULL)
-		sprintf(group, "%-8ld ", (long)gid);
-	else
-		strcpy(group, mygroup->gr_name);
+	if (mygroup==NULL) {
+		sprintf(group, "%ld", gid);
+		return NULL;
+	} else {
+		return strcpy(group, mygroup->gr_name);
+	}
 }
 
 

libbb/my_getpwuid.c

@@ -28,15 +28,17 @@
 
 
 /* gets a username given a uid */
-void my_getpwuid(char *name, long uid)
+char * my_getpwuid(char *name, long uid)
 {
 	struct passwd *myuser;
 
 	myuser  = getpwuid(uid);
-	if (myuser==NULL)
-		sprintf(name, "%-8ld ", (long)uid);
-	else
-		strcpy(name, myuser->pw_name);
+	if (myuser==NULL) {
+		sprintf(name, "%ld", (long)uid);
+		return NULL;
+	} else {
+		return strcpy(name, myuser->pw_name);
+	}
 }
 
 /* END CODE */

procps/ps.c

@@ -150,8 +150,6 @@ extern int ps_main(int argc, char **argv)
 
 		/* Make some adjustments as needed */
 		my_getpwuid(uidName, p.ruid);
-		if (*uidName == '\0')
-			sprintf(uidName, "%d", p.ruid);
 
 		sprintf(path, "/proc/%s/cmdline", entry->d_name);
 		file = fopen(path, "r");
@@ -243,8 +241,6 @@ extern int ps_main(int argc, char **argv)
 	    
 		/* Make some adjustments as needed */
 		my_getpwuid(uidName, info.euid);
-		if (*uidName == '\0')
-			sprintf(uidName, "%ld", info.euid);
 
 		if(p.vmsize == 0)
 			len = printf("%5d %-8s        %c    ", p.pid, uidName, p.state);

sysklogd/logger.c

@@ -121,7 +121,7 @@ extern int logger_main(int argc, char **argv)
 				pri = pencode(optarg);
 				break;
 			case 't':
-				strncpy(name, optarg, sizeof(name));
+				safe_strncpy(name, optarg, sizeof(name));
 				break;
 			default:
 				show_usage();
@@ -152,7 +152,7 @@ extern int logger_main(int argc, char **argv)
 			strcat(message, argv[i]);
 			strcat(message, " ");
 		}
-		message[strlen(message)-1] = '\0';
+		message[strlen(message) - 2] = '\0';
 		syslog(pri, "%s", message);
 	}