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Annotation of src/usr.bin/tcfs/tcfsrmuser.c, Revision 1.2

1.1       provos      1: /*
                      2:  *     Transparent Cryptographic File System (TCFS) for NetBSD
                      3:  *     Author and mantainer:   Luigi Catuogno [luicat@tcfs.unisa.it]
                      4:  *
                      5:  *     references:             http://tcfs.dia.unisa.it
                      6:  *                             tcfs-bsd@tcfs.unisa.it
                      7:  */
                      8:
                      9: /*
                     10:  *     Base utility set v0.1
                     11:  */
                     12:
                     13:
                     14: #include <stdio.h>
                     15: #include <unistd.h>
1.2     ! provos     16: #include <err.h>
1.1       provos     17:
                     18: #include <miscfs/tcfs/tcfs.h>
                     19: #include "tcfslib.h"
                     20: #include "tcfserrors.h"
                     21:
                     22: char *rmuser_usage="Usage: %s [OPTION]...
                     23: Remove an user entry from the TCFS dabatase.
                     24:
                     25:   -l <user>   Username to remove from the TCFS database
                     26:   -h          Shows this help
                     27:   -v          Makes the output a little more verbose\n";
                     28:
                     29: int
                     30: rmuser_main (int argn, char *argv[])
                     31: {
1.2     ! provos     32:        int have_user = FALSE;
        !            33:        int be_verbose = FALSE;
1.1       provos     34:        char *user, *passwd;
                     35:        tcfspwdb *user_info;
                     36:        int val;
                     37:
                     38:        /*
                     39:         * Going to check the arguments
                     40:         */
                     41:
1.2     ! provos     42:         if ((user = (char *) malloc(LOGIN_NAME_MAX + 1)) == NULL)
        !            43:                 err(1, NULL);
1.1       provos     44:
                     45:         while ((val=getopt (argn, argv, "l:hv"))!=EOF)
1.2     ! provos     46:                 switch (val) {
1.1       provos     47:                        case 'l':
1.2     ! provos     48:                                strlcpy (user, optarg, LOGIN_NAME_MAX + 1);
        !            49:                                have_user = TRUE;
1.1       provos     50:                                break;
                     51:
                     52:                        case 'h':
                     53:                                show_usage (rmuser_usage, argv[0]);
                     54:                                exit (OK);
                     55:                                break;
                     56:
                     57:                        case 'v':
1.2     ! provos     58:                                be_verbose = TRUE;
1.1       provos     59:                                break;
                     60:
                     61:                        default:
                     62:                                fprintf (stderr, "Try %s --help for more information.\n", argv[0]);
                     63:                                exit (ER_UNKOPT);
                     64:                                break;
                     65:                }
                     66:
                     67:        if (argn-optind)
                     68:                tcfs_error (ER_UNKOPT, NULL);
                     69:
                     70:        /*
                     71:         * Here we don't have to drop root privileges because only root
                     72:         * should run us.
                     73:         * However we can do better. Maybe in next versions.
                     74:         */
1.2     ! provos     75:        if (!have_user) {
        !            76:                int len;
        !            77:
1.1       provos     78:                printf ("Username to remove from TCFS database: ");
1.2     ! provos     79:                fgets (user, LOGIN_NAME_MAX + 1, stdin);
        !            80:                len = strlen(user) - 2;
        !            81:                if (len < 0)
        !            82:                        exit (1);
        !            83:                user[len] = user[len] == '\n' ? 0 : user[len];
1.1       provos     84:        }
                     85:
                     86:        if (be_verbose)
                     87:                printf ("Deleting the entry for user %s from the TCFS database...\n", user);
                     88:
                     89:        /*
                     90:         * Deleting an entry from the key database
                     91:         */
                     92:        if (!tcfspwdbr_new (&user_info))
                     93:                tcfs_error (ER_MEM, NULL);
                     94:
                     95:        if (!tcfspwdbr_edit (&user_info, F_USR, user))
                     96:                tcfs_error (ER_MEM, NULL);
                     97:
                     98:        if (!tcfs_putpwnam (user, user_info, U_DEL))
                     99:                tcfs_error (ER_CUSTOM, "Error: cannot remove user.");
                    100:
                    101:        if (be_verbose)
                    102:                printf ("User entry removed with success.\n");
                    103:
                    104:        tcfs_error (OK, NULL);
                    105: }