/* $Id: chfn.c 3956 2010-01-05 20:56:56Z zacheiss $ * * Talk to the Moira database to change a person's GECOS information. * * chfn with no modifiers changes the information of the user who is * running the program. * * If a commandline argument is given, it is taken to be the username * of the user whose information is to be changed. * * Copyright (C) 1988-1998 by the Massachusetts Institute of Technology * For copying and distribution information, please see the file * . */ #include #include #include #include #include #include #include RCSID("$HeadURL: svn+ssh://svn.mit.edu/moira/trunk/moira/clients/chfn/chfn.c $ $Id: chfn.c 3956 2010-01-05 20:56:56Z zacheiss $"); #define FALSE 0 #define TRUE 1 char *whoami; char *username; struct finger_info { char *fullname; char *nickname; char *home_address; char *home_phone; char *office_address; char *office_phone; char *mit_department; char *mit_year; }; #define argis(a, b) (!strcmp(*arg + 1, a) || !strcmp(*arg + 1, b)) void usage(void); int get_user_info(int argc, char *argv[], void *message); char *ask(char *question, char *def_val, int phone_num); void get_new_info(struct finger_info *old_info, struct finger_info *new_info); int main(int argc, char *argv[]) { int status; /* general purpose exit status */ int q_argc; /* argc for mr_query */ char *q_argv[F_END]; /* argv for mr_query */ int i; struct finger_info old_info; struct finger_info new_info; char **arg = argv; char *server = NULL; if ((whoami = strrchr(argv[0], '/')) == NULL) whoami = argv[0]; else whoami++; /* parse our command line options */ while (++arg - argv < argc) { if (**arg == '-') { if (argis("db", "database")) { if (arg - argv < argc - 1) { ++arg; server = *arg; } else usage(); } } else if (username == NULL) username = *arg; else usage(); } if (!username) { username = mrcl_krb_user(); if (!username) exit(1); } if (mrcl_connect(server, "chsh", 2, 1) != MRCL_SUCCESS) exit(1); /* First, do an access check. */ q_argv[F_NAME] = username; for (i = F_NAME + 1; i < F_MODTIME; i++) q_argv[i] = "junk"; q_argc = F_MODTIME; /* one more than the last updatable field */ if ((status = mr_access("update_finger_by_login", q_argc, q_argv))) { com_err(whoami, status, "; finger\ninformation not changed."); exit(2); } printf("Changing finger information for %s.\n", username); /* Get information */ q_argv[NAME] = username; q_argc = NAME + 1; if ((status = mr_query("get_finger_by_login", q_argc, q_argv, get_user_info, &old_info))) { com_err(whoami, status, "while getting user information."); exit(2); } /* Get the new information from the user */ get_new_info(&old_info, &new_info); /* Do the update */ printf("Changing finger information...\n"); q_argv[F_NAME] = username; q_argv[F_FULLNAME] = new_info.fullname; q_argv[F_NICKNAME] = new_info.nickname; q_argv[F_HOME_ADDR] = new_info.home_address; q_argv[F_HOME_PHONE] = new_info.home_phone; q_argv[F_OFFICE_ADDR] = new_info.office_address; q_argv[F_OFFICE_PHONE] = new_info.office_phone; q_argv[F_MIT_DEPT] = new_info.mit_department; q_argv[F_MIT_AFFIL] = new_info.mit_year; q_argc = F_MODTIME; /* First non-update query argument */ if ((status = mr_query("update_finger_by_login", q_argc, q_argv, NULL, NULL))) { com_err(whoami, status, "while updating finger information."); exit(1); } printf("Finger information updated succesfully.\n"); mr_disconnect(); return 0; } int get_user_info(int argc, char *argv[], void *message) { struct finger_info *old_info = message; if (argc != F_END) { fprintf(stderr, "Some internal error occurred; try again.\n"); exit(3); } printf("Info last changed on %s by user %s with %s.\n", argv[F_MODTIME], argv[F_MODBY], argv[F_MODWITH]); old_info->fullname = strdup(argv[F_FULLNAME]); old_info->nickname = strdup(argv[F_NICKNAME]); old_info->home_address = strdup(argv[F_HOME_ADDR]); old_info->home_phone = strdup(argv[F_HOME_PHONE]); old_info->office_address = strdup(argv[F_OFFICE_ADDR]); old_info->office_phone = strdup(argv[F_OFFICE_PHONE]); old_info->mit_department = strdup(argv[F_MIT_DEPT]); old_info->mit_year = strdup(argv[F_MIT_AFFIL]); /* Only pay attention to the first match since login names are unique in the database. */ return MR_ABORT; } char *ask(char *question, char *def_val, int phone_num) { static char buf[BUFSIZ]; int ok = FALSE; char *result; int i; int dashes = FALSE; int len; #define BLANK "none" while (!ok) { ok = TRUE; printf("%s [%s]: ", question, def_val); if (!fgets(buf, sizeof(buf), stdin)) exit(0); buf[strlen(buf) - 1] = '\0'; if (strlen(buf) == 0) result = def_val; else if (!strcasecmp(buf, BLANK)) result = ""; else result = buf; len = strlen(buf); for (i = 0; i < len; i++) { switch (buf[i]) { case '"': printf("'\"' is not allowed.\n"); ok = FALSE; break; case ',': printf("',' is not allowed.\n"); ok = FALSE; break; case ':': printf("':' is not allowed.\n"); ok = FALSE; break; default: if (iscntrl(buf[i])) { printf("Control characters are not allowed.\n"); ok = FALSE; break; } } if (!ok) break; } } return result; } void get_new_info(struct finger_info *old_info, struct finger_info *new_info) { printf("Default values are printed inside of '[]'.\n"); printf("To accept the default, type .\n"); printf("To have a blank entry, type the word '%s'.\n\n", BLANK); #define GETINFO(m, v, n) new_info->v = strdup(ask(m, old_info->v, n)) GETINFO("Full name", fullname, FALSE); GETINFO("Nickname", nickname, FALSE); GETINFO("Home address (Ex: EC Bemis 514)", home_address, FALSE); GETINFO("Home phone number (Ex: 3141592)", home_phone, TRUE); GETINFO("Office address (Exs: E40-342 or 2-108)", office_address, FALSE); GETINFO("Office phone (Ex: 3-7619)", office_phone, TRUE); GETINFO("MIT department (Exs: 9, Biology, Information Services)", mit_department, FALSE); GETINFO("MIT year (Exs: 1989, '91, Faculty, Grad)", mit_year, FALSE); } void usage(void) { fprintf(stderr, "Usage: %s [user]\n", whoami); exit(1); }