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27.1.5 Converting user identifiers ¶

We are meant to call these function after a call to mbfl_system_passwd_read(); Reading the file passwd.

Function: mbfl_system_passwd_uid_to_name UID ¶

Function: mbfl_system_passwd_uid_to_name_var _RV UID ¶

Print to stdout the name of the user whose uid is UID. When successful return true; otherwise return false.

The function variant _var stores the result in the variable _RV, rather than print it; Result variables.

local USER_NAME

if mbfl_system_passwd_read
then mbfl_system_passwd_uid_to_name 0
fi

# Using the "_var" variants.
if mbfl_system_passwd_read
then
    mbfl_system_passwd_uid_to_name_var USER_NAME 0
    echo "$USER_NAME"
fi

Function: mbfl_system_passwd_name_to_uid NAME ¶

Function: mbfl_system_passwd_name_to_uid_var _RV NAME ¶

Print to stdout the id of the user whose uid is UID. When successful return true; otherwise return false.

The function variant _var stores the result in the variable _RV, rather than print it; Result variables.

local USER_ID

if mbfl_system_passwd_read
then mbfl_system_passwd_name_to_uid 'root'
fi

# Using the "_var" variants.
if mbfl_system_passwd_read
then
    if mbfl_system_passwd_name_to_uid_var USER_ID 'root'
    then echo "$USER_ID"
    fi
fi

Function: mbfl_system_numerical_user_id_to_name ID ¶

Convert the numerical user ID to the user name found in the /etc/passwd file; print the result to stdout. When successful return true; otherwise return false.

Function: mbfl_system_numerical_user_id_to_name NAME ¶

Convert the symbolic user NAME to the numerical identifier found in the /etc/passwd file; print the result to stdout. When successful return true; otherwise return false.