1    | /***************************************
2    |   $Revision: 1.23 $
3    | 
4    |   Protocol config module (pc).  This is the protocol that the admin uses to
5    |   talk to the server.
6    | 
7    |   Status: NOT REVUED, NOT TESTED
8    | 
9    |   ******************/ /******************
10   |   Filename            : protocol_config.c
11   |   Authors             : ottrey@ripe.net
12   |                         marek@ripe.net
13   |   To Do               : Add a facility to take callbacks instead of
14   |                         hard-coding menu options.
15   |                         Add in all the menu support provided by the GLib
16   |                         libraries.
17   |                         (Remove strtok if multiple threads are to be used.)
18   | 			use gnu readline with expansion and history
19   |   ******************/ /******************
20   |   Copyright (c) 1999                              RIPE NCC
21   |  
22   |   All Rights Reserved
23   |   
24   |   Permission to use, copy, modify, and distribute this software and its
25   |   documentation for any purpose and without fee is hereby granted,
26   |   provided that the above copyright notice appear in all copies and that
27   |   both that copyright notice and this permission notice appear in
28   |   supporting documentation, and that the name of the author not be
29   |   used in advertising or publicity pertaining to distribution of the
30   |   software without specific, written prior permission.
31   |   
32   |   THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
33   |   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS; IN NO EVENT SHALL
34   |   AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
35   |   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
36   |   AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
37   |   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
38   |   ***************************************/
39   | #include <stdio.h>
40   | #include <stdlib.h>
41   | /*** solaris' header file doesn't contain the crypt definition...
42   |      #include <unistd.h> */
43   | 
44   | extern char* crypt(const char *, const char *);   /* crypt stuff */
45   | #include <time.h>       /* Time stuff */
46   | #include <sys/ioctl.h>  /* Terminal control stuff */
47   | #include <termio.h>     /* Terminal control stuff */
48   | 
49   | #include "mysql_driver.h"
50   | #include "constants.h"
51   | #include "properties.h"
52   | #include "thread.h"
53   | #include "protocol_config.h"
54   | #include "access_control.h"
55   | #include "socket.h"
56   | #include "ta.h"
57   | 
58   | /*+ Each command has a +*/
59   | typedef struct _command {
60   |   const char *name;                          /*+ Name to be invoked. +*/
61   |   char *(*function)(char *, sk_conn_st *);   /*+ Function to be invoked. +*/
62   |   const char *help;                                /*+ Command help. +*/
63   | } Command;
64   | 
65   | /*
66   |  * Forward declarations
67   |  */
68   | static char *command_help(char *input, sk_conn_st *condat);
69   | static char *command_quit(char *input, sk_conn_st *condat);
70   | static char *command_show(char *input, sk_conn_st *condat);
71   | static char *command_repeat(char *input, sk_conn_st *condat);
72   | static char *show_const(char *input, sk_conn_st *condat);
73   | static char *show_consts(char *input, sk_conn_st *condat);
74   | static char *show_props(char *input, sk_conn_st *condat);
75   | static char *show_threads(char *input, sk_conn_st *condat);
76   | static char *show_whois(char *input, sk_conn_st *condat);
77   | static char *show_access(char *input, sk_conn_st *condat);
78   | static char *show_acl(char *input, sk_conn_st *condat);
79   | static char *command_set(char *input, sk_conn_st *condat);
80   | static char *set_const(char *input, sk_conn_st *condat);
81   | static char *set_consts(char *input, sk_conn_st *condat);
82   | static char *set_props(char *input, sk_conn_st *condat);
83   | static char *command_sql(char *input, sk_conn_st *condat);
84   | static char *set_acl(char *input, sk_conn_st *condat);
85   | 
86   | /*+
87   |  * Contains the command definitions
88   | +*/
89   | static struct _command command[] = {
90   |   {"help"   , command_help   , HELP_HELP   },
91   |   {"quit"   , command_quit   , HELP_QUIT   },
92   |   {"show"   , command_show   , HELP_SHOW   },
93   |   {"repeat" , command_repeat , HELP_REPEAT },
94   |   {"set"    , command_set    , HELP_SET    },
95   |   {"sql"    , command_sql    , HELP_SQL    },
96   |   {NULL     , NULL           , NULL        }
97   | };
98   | 
99   | /*+
100  |  * Contains the show commands
101  | +*/
102  | static struct _command show[] = {
103  |   {"const"   , show_const   , HELP_SHOW_CONST   },
104  |   {"consts"  , show_consts  , HELP_SHOW_CONSTS  },
105  |   {"props"   , show_props   , HELP_SHOW_PROPS   },
106  |   {"threads"  , show_threads  , HELP_SHOW_THREAD  },
107  |   {"whois"   , show_whois   , HELP_SHOW_WHOIS   },
108  |   {"access"  , show_access  , HELP_SHOW_ACCESS  },
109  |   {"acl"     , show_acl     , HELP_SHOW_ACL     },
110  |   {NULL      , NULL         , NULL              }
111  | };
112  | 
113  | /*+
114  |  * Contains the set commands
115  | +*/
116  | static struct _command set[] = {
117  |   {"const"  , set_const  , HELP_SET_CONST  },
118  |   {"consts" , set_consts , HELP_SET_CONSTS },
119  |   {"props"  , set_props  , HELP_SET_PROPS  },
120  |   {"acl"    , set_acl    , HELP_SET_ACL    },
121  |   {NULL     , NULL       , NULL            }
122  | };
123  | 
124  | static int find_command(char *comm_name, Command *comm) {
125  |   int i, index;
126  |   char comm_buffer[STR_L];
127  | 
128  |   if (comm_name != NULL) {
129  |     strcpy(comm_buffer, comm_name);
130  |     strtok(comm_buffer, " \t");
131  |     for (i=0, index=-1; comm[i].name != NULL; i++) {
132  |       if ( strcmp(comm_buffer, comm[i].name) == 0) {
133  |         index = i;
134  |         break;
135  |       }
136  |     }
137  |   }
138  |   else {
139  |     index = -2;
140  |   }
141  | 
142  |   return index;
143  | } /* find_command() */
144  | 
145  | static char *show_commands(Command *comm) {
146  |   char *str;
147  |   char help_buffer[STR_XL];
148  |   char help_comm[STR_M];
149  |   int i;
150  | 
151  |   sprintf(help_buffer, " commands are:\n\n");
152  |   i = 0;
153  |   while (comm[i].name != NULL) {
154  |     sprintf(help_comm, "%s\t%s\n", comm[i].name, comm[i].help);
155  |     strcat(help_buffer, help_comm);
156  |     i++;
157  |   }
158  | 
159  |   /* str = (char *)calloc(1, strlen(help_buffer)+1); */
160  |   dieif( wr_malloc((void **)&str, strlen(help_buffer)+1) != UT_OK);  
161  |   strcpy(str, help_buffer);
162  | 
163  |   return str;
164  | } /* show_commands() */
165  | 
166  | 
167  | /*
168  |  * Command functions
169  |  */
170  | static char *command_help(char *input, sk_conn_st *condat) {
171  |   char *str;
172  |   char *str1;
173  |   char output_buffer[STR_XXL];
174  |   char *command_name;
175  |   int index;
176  | 
177  |   strcpy(output_buffer, "");
178  | 
179  |   strtok(input, " \t");
180  |   command_name = (char *)strtok(NULL, " \t");
181  | 
182  |   index = find_command(command_name, command);
183  | 
184  |   switch (index) {
185  |     case -2:
186  |       strcat(output_buffer, "Main");
187  |       str1 = show_commands(command);
188  |       strcat(output_buffer, str1);
189  |       wr_free(str1);
190  |       break;
191  | 
192  |     case -1:
193  |       strcat(output_buffer, HELP_ERROR);
194  |       strcat(output_buffer, command_name);
195  |       break;
196  | 
197  |     default: 
198  |       strcat(output_buffer, command[index].help);
199  |   }
200  | 
201  |   /*
202  |   str = (char *)CopyString(output_buffer);
203  |   */
204  |   /*  str = (char *)calloc(1, strlen(output_buffer)+1); */
205  |   dieif( wr_malloc((void **)&str, strlen(output_buffer)+1) != UT_OK);  
206  |   strcpy(str, output_buffer);
207  | 
208  |   return str;
209  | } /* command_help() */
210  | 
211  | static char *command_quit(char *input, sk_conn_st *condat) {
212  |     /* Administrator wishes to quit. */
213  |   return NULL;
214  | } /* command_quit() */
215  | 
216  | static char *show_const(char *input, sk_conn_st *condat) {
217  |   /* Administrator wishes to show constants. */
218  |   char *result;
219  |   char *name;
220  |   char *tmp_input;
221  | 
222  |   /* tmp_input = (char *)calloc(1, strlen(input)+1); */
223  |   dieif( wr_malloc((void **)&tmp_input, strlen(input)+1) != UT_OK);  
224  |   strcpy(tmp_input, input);
225  | 
226  |   /* The name will be the third token in stuff */
227  |   strtok(tmp_input, " ");
228  |   strtok(NULL, " ");
229  |   name = (char *)strtok(NULL, " ");
230  | 
231  |   result = CO_const_to_string(name);
232  | 
233  |   wr_free(tmp_input);
234  |   return result;
235  | 
236  | } /* show_const() */
237  | 
238  | static char *show_consts(char *input, sk_conn_st *condat) {
239  |   /* Administrator wishes to show constants. */
240  |   return CO_to_string();
241  | 
242  | } /* show_consts() */
243  | 
244  | static char *show_props(char *input, sk_conn_st *condat) {
245  |   /* Administrator wishes to show properties. */
246  |   return PR_to_string();
247  | 
248  | } /* show_props() */
249  | 
250  | static char *show_threads(char *input, sk_conn_st *condat) {
251  |   /* Administrator wishes to show thread information. */
252  |   return TA_tostring();
253  | 
254  | } /* show_thread() */
255  | 
256  | static char *show_whois(char *input, sk_conn_st *condat) {
257  |   /* Administrator wishes to show whois query information. */
258  |   return wr_string("WQ_to_string();");
259  | 
260  | } /* show_whois() */
261  | 
262  | static char *show_access(char *input, sk_conn_st *condat) {
263  |   /* Administrator wishes to show whois query information. */
264  |   
265  |   char line[128];
266  |   int cnt;
267  |   er_ret_t err; 
268  | 
269  |   if( act_runtime->top_ptr != NULL ) {
270  |     char *header = AC_to_string_header();
271  |     
272  |     /* print header */
273  |     SK_cd_puts(condat,header);
274  |     wr_free(header);
275  | 
276  |     cnt = rx_walk_tree(act_runtime->top_ptr, AC_rxwalkhook_print, 
277  | 		       RX_WALK_SKPGLU,  /* print no glue nodes */
278  | 		       255, 0, 0, condat, &err);
279  |     sprintf(line,"Found %d nodes\n", cnt);
280  |     SK_cd_puts(condat,line);
281  |   }
282  |   
283  |   return wr_string("");
284  | 
285  | } /* show_access() */
286  | 
287  | static char *show_acl(char *input, sk_conn_st *condat) {
288  |   /* Administrator wishes to show access control list. */
289  |   
290  |   char line[128];
291  |   int cnt;
292  |   er_ret_t err; 
293  | 
294  |   if( act_acl->top_ptr != NULL ) {
295  |     char *header = AC_acl_to_string_header();
296  |     
297  |     /* print header */
298  |     SK_cd_puts(condat,header);
299  |     wr_free(header);
300  | 
301  |     cnt = rx_walk_tree(act_acl->top_ptr, AC_rxwalkhook_print_acl, 
302  | 		       RX_WALK_SKPGLU,  /* print no glue nodes */
303  | 		       255, 0, 0, condat, &err);
304  |     sprintf(line,"Found %d nodes\n", cnt);
305  |     SK_cd_puts(condat,line);
306  |   }
307  |   
308  |   return wr_string("");
309  | 
310  | } /* show_acl() */
311  | 
312  | static char *command_execute(char *input, char *comm_name, 
313  | 			     Command *comm, sk_conn_st *condat) {
314  |   char *str;
315  |   char *str1;
316  |   char output_buffer[STR_XXL];
317  |   char *name;
318  |   int index;
319  |   char *tmp_input;
320  | 
321  |   /* Make a copy of the input */
322  |   /* tmp_input = (char *)calloc(1, strlen(input)+1); */
323  |   dieif( wr_malloc((void **)&tmp_input, strlen(input)+1) != UT_OK);  
324  |   strcpy(tmp_input, input);
325  | 
326  |   strtok(tmp_input, " \t");
327  |   name = (char *)strtok(NULL, " \t");
328  | 
329  |   index = find_command(name, comm);
330  | 
331  |   switch (index) {
332  |     case -2:
333  |       str1 = show_commands(comm);
334  |       sprintf(output_buffer, "%s%s", comm_name, str1);
335  |       wr_free(str1);
336  |       break;
337  | 
338  |     case -1:
339  |       sprintf(output_buffer, "%s invalid command: %s", comm_name, name);
340  |       break;
341  | 
342  |     default: 
343  |       sprintf(output_buffer, "%s", comm[index].function(input, condat));
344  |   }
345  | 
346  |   /*
347  |   str = (char *)CopyString(output_buffer);
348  |   */
349  |   /* str = (char *)calloc(1, strlen(output_buffer)+1); */
350  |   dieif( wr_malloc((void **)&str, strlen(output_buffer)+1) != UT_OK);  
351  |   strcpy(str, output_buffer);
352  | 
353  |   wr_free(tmp_input);
354  | 
355  |   return str;
356  | } /* command_execute() */
357  | 
358  | static char *command_show(char *input, sk_conn_st *condat) {
359  |   return command_execute(input, "Show", show, condat);
360  | } /* command_show() */
361  | 
362  | static char *command_repeat(char *input, sk_conn_st *condat) {
363  |   char *command_ptr;
364  | 
365  |   /* Goto the bit after "repeat n " */
366  |   for (command_ptr=input+7; command_ptr[0] != ' ' || (command_ptr[0] >= '0' && command_ptr[0] <= '9'); command_ptr++);
367  | 
368  |   return command_ptr+1;
369  | 
370  | } /* command_show() */
371  | 
372  | static char *set_const(char *input, sk_conn_st *condat) {
373  |   /* Administrator wishes to set a constant. */
374  |   char *result;
375  |   char result_buf[STR_M];
376  |   char *tmp_input;
377  |   char *name;
378  |   char *value;
379  |   int value_len;
380  |   char *stuff;
381  |   char *str;
382  | 
383  |   /* tmp_input = (char *)calloc(1, strlen(input)+1); */
384  |   dieif( wr_malloc((void **)&tmp_input, strlen(input)+1) != UT_OK);  
385  |   strcpy(tmp_input, input);
386  | 
387  |   stuff = (char *)strtok(tmp_input, "=");
388  | 
389  |   /* The value will be after the '=' */
390  |   value = (char *)strtok(NULL, "=");
391  | 
392  |   /* The name will be the third token in stuff */
393  |   strtok(stuff, " ");
394  |   strtok(NULL, " ");
395  |   name = (char *)strtok(NULL, " ");
396  | 
397  |   /* Remove any quotes */
398  |   if (value[0] == '"') {
399  |     value++;
400  |   }
401  |   value_len=strlen(value);
402  |   if (value[value_len-1] == '"') {
403  |     value[value_len-1]='\0';
404  |   }
405  | 
406  |   printf("set_const name=(%s), value=(%s)\n", name, value);
407  |   if (CO_set_const(name, value) == 0) {
408  |     strcpy(result_buf, "Constant successfully set\n");
409  |   }
410  |   else {
411  |     str = CO_const_to_string(name);
412  |     sprintf(result_buf, "Constant not successfully set\nReverting to:   %s=%s\n", name, str);
413  |     wr_free(str);
414  |   }
415  | 
416  |   /* result = (char *)calloc(1, strlen(result_buf)+1); */
417  |   dieif( wr_malloc((void **)&result, strlen(result_buf)+1) != UT_OK);  
418  |   strcpy(result, result_buf);
419  | 
420  |   wr_free(tmp_input);
421  |   return result;
422  | } /* set_const() */
423  | 
424  | static char *set_consts(char *input, sk_conn_st *condat) {
425  |   /* Administrator wishes to set constants. */
426  |   return CO_set();
427  | } /* set_consts() */
428  | 
429  | static char *set_props(char *input, sk_conn_st *condat) {
430  |   /* Administrator wishes to set properties. */
431  |   return PR_set();
432  | } /* set_props() */
433  | 
434  | static char *set_acl(char *input, sk_conn_st *condat) {
435  | 
436  |   /* first 8 characters are "set acl " so skip them */
437  | 
438  |   if( ! NOERR( AC_asc_acl_command_set( input+8, "Manual"))) {
439  |     return wr_string("Error\n");
440  |   }
441  |   else {
442  |     return wr_string("OK");
443  |   }
444  | }
445  | 
446  | static char *command_set(char *input, sk_conn_st *condat) {
447  |   return command_execute(input, "Set", set, condat);
448  | } /* command_set() */
449  | 
450  | static char *command_sql(char *input, sk_conn_st *condat) {
451  |   char *str;
452  |   char output_buffer[STR_XXL];
453  |   char *sql_str;
454  | 
455  |   char *res=NULL;
456  | 
457  |   SQ_result_set_t *sql_result=NULL;
458  |   SQ_connection_t *sql_connection;
459  | 
460  |   sql_connection = SQ_get_connection("",0,"","","");
461  | 
462  |   if (sql_connection == NULL) {
463  |     printf("/* Check for errors */\n");
464  |   }
465  | 
466  |   /* skip over the "sql" */
467  |   sql_str = input+3;
468  |   /* skip over white space */
469  |   while (sql_str[0] == ' ') {
470  |     sql_str++;
471  |   }
472  | 
473  |   strcpy(output_buffer, "");
474  | 
475  |   if (sql_connection != NULL) {
476  |     if (strcmp(sql_str, "status") == 0) {
477  |       /* Get the status of the database */
478  |       res = SQ_info_to_string(sql_connection);
479  |     }
480  |     else {
481  |       if (strcmp(sql_str, "") == 0) {
482  |         /* Execute the default query (from the properties file) */
483  | 	  SQ_execute_query(sql_connection, "", &sql_result);
484  |       }
485  |       else {
486  |         /* Execute an sql query */
487  | 	  SQ_execute_query(sql_connection, sql_str, &sql_result);
488  |       }
489  |       if (sql_result != NULL) {
490  |         res = SQ_result_to_string(sql_result);
491  |       }
492  |       else {
493  |         printf("no results\n");
494  |       }
495  |     }
496  |     if (res != NULL) {
497  |       sprintf(output_buffer, "%s", res);
498  |     }
499  |     else {
500  |       printf("empty results\n");
501  |     }
502  |   }
503  |   else {
504  |     printf("Failed to make connection\n");
505  |   }
506  | 
507  |   /*
508  |   strcat(output_buffer, mysql_info(sql_connection));
509  |   */
510  | 
511  |   strcat(output_buffer, "XXX Results from mysql_info(sql_connection) is meant to go here.  But it's not working!");
512  | 
513  |   /*
514  |   str = (char *)CopyString(output_buffer);
515  |   */
516  |   /* str = (char *)calloc(1, strlen(output_buffer)+1); */
517  |   dieif( wr_malloc((void **)&str, strlen(output_buffer)+1) != UT_OK);  
518  |   strcpy(str, output_buffer);
519  | 
520  |   wr_free(res);
521  |   SQ_free_result(sql_result);
522  | 
523  |   SQ_close_connection(sql_connection);
524  | 
525  |   return str;
526  | 
527  | } /* command_sql() */
528  | 
529  | 
530  | /* process_input() */
531  | /*++++++++++++++++++++++++++++++++++++++
532  | 
533  |   Process the input.
534  | 
535  |   sk_conn_st *condat         connection data    
536  | 
537  |   More:
538  |   +html+ <PRE>
539  |   Author:
540  |         ottrey
541  |   +html+ </PRE>
542  |   ++++++++++++++++++++++++++++++++++++++*/
543  | static int process_input(char *input, sk_conn_st *condat) {
544  |   int connected = 1;
545  |   char *input_ptr;
546  |   char *output;
547  |   int  index;
548  |   int repeat=0;
549  | 
550  |   input_ptr = input;
551  | 
552  |   if (strncmp(input, "repeat", 6) == 0) {
553  |     /* XXX This is a really dodgy call, that hopefully converts
554  |     the string to the value of the first found integer. */
555  |     repeat = atoi(input+7);
556  |     input_ptr= command_repeat(input, condat);
557  |   }
558  | 
559  |   index = find_command(input_ptr, command);
560  | 
561  |   do {
562  |     switch (index) {
563  |       case -1:
564  |         /* Command not found */
565  |         output = command_help(NULL, condat);
566  |         break;
567  | 
568  |       default: 
569  |         output = command[index].function(input_ptr, condat);
570  |     }
571  | 
572  |     if(output == NULL) {
573  |       connected = 0;
574  |     } else {
575  |       /*
576  |       printf("thread output=\n%s\n", output);
577  |       */
578  |       if ( CO_get_clear_screen() == 1 ) {
579  |         SK_cd_puts(condat, CLEAR_SCREEN);
580  |       }
581  |       SK_cd_puts(condat,  output);
582  |       SK_cd_puts(condat, "\n");
583  |       SK_cd_puts(condat, CO_get_prompt());
584  |       
585  |       wr_free(output);
586  |     }
587  | 
588  |     if (repeat > 0) {
589  |       repeat--;
590  |     }
591  | 
592  |   } while (repeat > 0);
593  | 
594  |   return connected;
595  | 
596  | } /* process_input() */
597  | 
598  | static void log_config(const char *user, const char *status) {
599  |   FILE *logf;
600  |   time_t now;
601  |   char timebuf[26];
602  | 
603  |   time(&now);
604  | 
605  |   printf(LOG_CONFIG, TH_get_id(), user, status, ctime_r(&now, timebuf));
606  | 
607  | } /* log_config() */
608  |  
609  | /* XXX Doh! These only change the server's terminal.  We need some
610  |    tricky escape sequence to send over the socket.
611  | static void echo_off(int sock) {
612  |   struct termio state;
613  | 
614  |   ioctl(0, TIOCGETP, &state);
615  |   state.c_lflag &= ~ECHO;
616  |   ioctl(0, TIOCSETP, &state);
617  | } echo_off() */
618  | 
619  | /* XXX Doh! These only change the server's terminal.  We need some
620  |    tricky escape sequence to send over the socket.
621  | static void echo_on(int sock) {
622  |   struct termio state;
623  | 
624  |   ioctl(0, TIOCGETP, &state);
625  |   state.c_lflag |= ECHO;
626  |   ioctl(0, TIOCSETP, &state);
627  | } echo_on() */
628  | 
629  | static char *authenticate_user(sk_conn_st *condat) {
630  |   char *user = NULL;
631  |   const char Salt[2] = "DB";
632  |   char input[MAX_INPUT_SIZE];
633  |   int read_result;
634  |   char *password=NULL;
635  |   char *user_password=NULL;
636  |   char user_buf[10];
637  | 
638  |   SK_cd_puts(condat, LOGIN_PROMPT);
639  |   read_result = SK_cd_gets(condat, input, MAX_INPUT_SIZE);
640  | 
641  |   strncpy(user_buf, input, 10);
642  | 
643  |   SK_cd_puts(condat, PASSWD_PROMPT);
644  |   /* XXX These aren't working.
645  |   SK_puts(sock, ECHO_ON);
646  |   echo_off(sock);
647  |   */
648  |   read_result = SK_cd_gets(condat, input, MAX_INPUT_SIZE);
649  |   /* XXX These aren't working.
650  |   echo_on(sock);
651  |   SK_puts(sock, ECHO_OFF);
652  |   */
653  | 
654  |   password = crypt(input, Salt);
655  | 
656  |   user_password = PR_get_property(user_buf, DEFAULT_USER_NAME);
657  | 
658  |   if (user_password != NULL) {
659  |     if (strcmp(password, user_password) == 0) {
660  |       /*user = (char *)calloc(1, strlen(user_buf)+1);*/
661  |       dieif( wr_malloc((void **)&user, strlen(user_buf)+1) != UT_OK);  
662  |       strcpy(user, user_buf);
663  |     }
664  |   }
665  | 
666  |   if (user == NULL) {
667  |     log_config(user_buf, "unsuccesful login attempt");
668  |   }
669  | 
670  |   return user;
671  | 
672  | } /* authenticate_user() */
673  | 
674  | void PC_interact(int sock) {
675  |   char input[MAX_INPUT_SIZE];
676  |   int connected = 1;
677  |   char *user=NULL;
678  |   sk_conn_st condat;
679  | 
680  |   memset( &condat, 0, sizeof(condat));
681  |   condat.sock = sock;
682  |   SK_getpeerip(sock, &(condat.rIP));
683  |   condat.ip = SK_getpeername(sock); /* XXX *alloc involved */
684  |   
685  |   /* Welcome the client */
686  |   SK_cd_puts(&condat, CO_get_welcome());
687  | 
688  |   /* Authenticate the user */
689  |   if (CO_get_authenticate() == 1) {
690  |     user = authenticate_user(&condat);
691  |   }
692  |   else {
693  |     user="nobody";
694  |   }
695  | 
696  |   if (user != NULL) {
697  |     
698  | 
699  |     /* Log admin logging on */
700  |     log_config(user, "logged on");
701  | 
702  |     
703  |     {
704  |       char timestring[26];
705  |       extern time_t SV_starttime;
706  |       
707  |       ctime_r(&SV_starttime, timestring); 
708  |       SK_cd_printf(&condat, 
709  | 		   "System running since %sUptime in seconds: %ld \n\n",
710  | 		   timestring,		  
711  | 		   time(NULL) - SV_starttime);
712  |     }
713  |     
714  |     SK_cd_puts(&condat, CO_get_prompt());
715  | 
716  |     while (condat.rtc==0 && connected) {
717  |       char *ichr;
718  |       char *icopy;
719  |       char *chr;
720  |       /* Read input */
721  |       SK_cd_gets(&condat, input, MAX_INPUT_SIZE);
722  | 
723  |       /* filter junk out: leading/trailing whitespaces */
724  |       
725  |       /* 1. advance to non-whitespace */
726  |       for(ichr=input; *ichr != 0 && isspace(*ichr); ichr++) {
727  | 	/* EMPTY */
728  |       }
729  |       /* 2. copy the rest (even if empty) */
730  |       dieif( (icopy = strdup(ichr)) == NULL);
731  |       
732  |       /* 3. chop trailing spaces */
733  |       for( chr = icopy + strlen(icopy)-1 ; 
734  | 	   chr != icopy && isspace(*chr);
735  | 	   chr--) {
736  | 	*chr = 0;
737  |       }
738  |       
739  |       /* set thread accounting */
740  |       TA_setactivity(icopy);
741  |       TA_increment();
742  |       
743  |       connected = process_input(icopy, &condat);
744  |       
745  |       TA_setactivity("");
746  |       
747  |       free(icopy);
748  |     }
749  |     
750  |     /* Log admin logging off */
751  |     log_config(user, "logged off");
752  |   }
753  |   
754  |   /* Close the socket */
755  |   SK_close(sock);
756  | 
757  |   wr_free(condat.ip);
758  | } /* PC_interact() */
759  |