Ticket History #2595: Problem with "rlogin" if "root" can't read user's home-directory

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From: alexandre.schmitt@cea.fr
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Subject: Bug with "rlogin"
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CEA


System: SunOS surf 5.8 Generic_114018-01 sun4u sparc SUNW,Sun-Blade-100
Architecture: sun4


There is a problem when a user have a home-directory without "read" for "other" in UNIX right and his home-directory is on a NFS server without root access.
After a "rlogin" the user is with home = "/"


bash-2.05$ cd; ls -ld `pwd`
drwxr-s--- 23 user1 group1 4096 Jun 8 2004 /home/group1/user1
bash-2.05$ rlogin surf
No directory /home/s8/user1!
Logging in with home = "/"
Last login: Tue Jun 8 14:29:17 from :0
surf%


The problem is because of the function "chdir" in the file src/appl/bsd/login.c
When the function "chdir" is called, the program is root. The program should call "chdir" when it has the user's identity.
We have just to move the "chdir" in src/appl/bsd/login.c:

diff login.c login.c.ori

1449A1450,1457
1656,1662d1663
< if (chdir(pwd->pw_dir) < 0) {
< printf("No directory %s!\n", pwd->pw_dir);
< if (chdir("/"))
< exit(0);
< pwd->pw_dir = "/";
< printf("Logging in with home = \"/\".\n");
< }