** Description changed:

- [placeholder for https://warthogs.atlassian.net/browse/UDENG-4314]
+ [ Impact ]
+ 
+ In this code, the string was not zero terminated properly when
+ overwritten resulting in extra characters:
+ 
+ static char *slash_to_at_username(const char *username) {
+     char *backslash = strchr(username, '\\');
+     if (backslash != NULL) {
+         char *ret = malloc((strlen(username) + 1) * sizeof(char));
+         strcpy(ret, backslash + 1);
+         strcat(ret, "@");
+         strncpy(ret + strlen(ret), username, backslash - username);
+         return ret;
+     }
+     return strdup(username);
+ 
+ For instance:
+ domain.tld\\user was changed to user@domain.tldld
+ 
+ So se user cannot login with the domain\user format
+ 
+ [ Test Plan ]
+ 
+ 1. On a machine joined to an AD domain with ADsys installed, login with
+ domain\user
+ 
+ => Without the patch the user cannot log in
+ => With the patch the user can log in
+ 
+ 
+ [ Where problems could occur ]
+ 
+ Worst case the user still cannot log in

** Also affects: adsys (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: adsys (Ubuntu Jammy)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/2078247

Title:
  rewrite from / to @ formats overwrites usernames

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