[PAM] Bound Checking, Unsigned Int, and Use of Macros in LIMIT.H

[zakuArbor]

Purpose

• Bound checking when looping over arrays
• • Bound checking when using strncpy
• use of unsigned variables to ensure numbers are not negative
• More usage of macros defined in limit.h

Tasks/Goals

• pam_bt_trust.c:
  • find_trusted_paired_devices:
    • use of unsigned for number of paired devices
    • ensure it's not over BT_MAX_CONN
  • get_trusted_dev_file:
    • increase filename size to use PATH_MAX and use LOGIN_NAME_MAX (will be assuming it's smaller than NAME_MAX which it is on Linux) to check length of username
    • bound check when strcpy that username and trusted_dir_path is not over the limit
  • set_trusted_devices:
    • use unsigned int for number of trusted devices
    • ensure number of trusted devices is limited to max of BT_MAX_CONN

Summary

To fill out once the issue is to be closed. Give a short summary of the changes you made to implement or fix an issue