3 * UCC (University [of WA] Computer Club) Electronic Accounting System
6 * main.c - Core and Initialisation
8 * This file is licenced under the 3-clause BSD Licence. See the file
9 * COPYING for full details.
14 #include <ctype.h> // isspace
20 #include <unistd.h> // close
21 #include <netdb.h> // gethostbyname
22 #include <pwd.h> // getpwuids
23 #include <sys/socket.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
26 #include <openssl/sha.h> // SHA1
28 #define USE_NCURSES_INTERFACE 0
29 #define DEBUG_TRACE_SERVER 0
30 #define USE_AUTOAUTH 1
32 #define MAX_TXT_ARGS 5 // Maximum number of textual arguments (including command)
33 #define DISPENSE_MULTIPLE_MAX 20 // Maximum argument to -c
37 UI_MODE_BASIC, // Non-NCurses
52 RV_SERVER_ERROR, // Generic for 5xx codes
53 RV_UNKNOWN_ERROR = -1,
55 RV_UNKNOWN_RESPONSE = -3,
59 typedef struct sItem {
62 int Status; // 0: Availiable, 1: Sold out, -1: Error
69 int main(int argc, char *argv[]);
71 int ShowNCursesUI(void);
72 int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted);
73 void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1, const char *Mid, char Pad2, const char *Right, ...);
74 // --- Coke Server Communication ---
75 int OpenConnection(const char *Host, int Port);
76 int Authenticate(int Socket);
77 int GetUserBalance(int Socket);
78 void PopulateItemList(int Socket);
79 int Dispense_ItemInfo(int Socket, const char *Type, int ID);
80 int DispenseItem(int Socket, const char *Type, int ID);
81 int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason);
82 int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason);
83 int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason);
84 int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride);
85 int Dispense_Donate(int Socket, int Ammount, const char *Reason);
86 int Dispense_EnumUsers(int Socket);
87 int Dispense_ShowUser(int Socket, const char *Username);
88 void _PrintUserLine(const char *Line);
89 int Dispense_AddUser(int Socket, const char *Username);
90 int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString);
91 int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName);
93 char *ReadLine(int Socket);
94 int sendf(int Socket, const char *Format, ...);
95 char *trim(char *string);
96 int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage);
97 void CompileRegex(regex_t *regex, const char *pattern, int flags);
100 char *gsDispenseServer = "heathred";
101 int giDispensePort = 11020;
105 regex_t gArrayRegex, gItemRegex, gSaltRegex, gUserInfoRegex, gUserItemIdentRegex;
106 int gbIsAuthenticated = 0;
108 char *gsItemPattern; //!< Item pattern
109 char *gsEffectiveUser; //!< '-u' Dispense as another user
110 int giUIMode = UI_MODE_STANDARD;
111 int gbDryRun = 0; //!< '-n' Read-only
112 int giMinimumBalance = INT_MIN; //!< '-m' Minumum balance for `dispense acct`
113 int giMaximumBalance = INT_MAX; //!< '-M' Maximum balance for `dispense acct`
114 char *gsUserName; //!< User that dispense will happen as
115 char *gsUserFlags; //!< User's flag set
116 int giUserBalance=-1; //!< User balance (set by Authenticate)
117 int giDispenseCount = 1; //!< Number of dispenses to do
118 char *gsTextArgs[MAX_TXT_ARGS];
124 printf( "Usage:\n" );
125 if( giTextArgc == 0 )
129 " Show interactive list\n"
130 " dispense <name>|<index>|<itemid>\n"
131 " Dispense named item (<name> matches if it is a unique prefix)\n"
133 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "give") == 0 )
135 " dispense give <user> <ammount> \"<reason>\"\n"
136 " Give money to another user\n"
139 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "donate") == 0 )
141 " dispense donate <ammount> \"<reason>\"\n"
142 " Donate to the club\n"
144 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "iteminfo") == 0 )
146 " dispense iteminfo <itemid>\n"
147 " Get the name and price for an item\n"
149 if( giTextArgc == 0 )
150 printf(" == Coke members == \n");
151 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "acct") == 0 )
153 " dispense acct [<user>]\n"
154 " Show user balances\n"
155 " dispense acct <user> [+-]<ammount> \"<reason>\"\n"
156 " Alter a account value\n"
157 " dispense acct <user> =<ammount> \"<reason>\"\n"
158 " Set an account balance\n"
160 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "refund") == 0 )
162 " dispense refund <user> <itemid> [<price>]\n"
163 " Refund an item to a user (with optional price override)\n"
165 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "slot") == 0 )
167 " dispense slot <itemid> <price> <name>\n"
168 " Rename/Re-price a slot\n"
170 if( giTextArgc == 0 )
171 printf(" == Dispense administrators ==\n");
172 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "user") == 0 )
174 " dispense user add <user>\n"
175 " Create new account\n"
176 " dispense user type <user> <flags>\n"
177 " Alter a user's flags\n"
178 " <flags> is a comma-separated list of user, coke, admin, internal or disabled\n"
179 " Flags are removed by preceding the name with '-' or '!'\n"
181 if( giTextArgc == 0 )
185 " Dispense multiple times\n"
187 " Set a different user (Coke members only)\n"
191 " Use simple textual interface (instead of ncurses)\n"
193 " Dry run - Do not actually do dispenses\n"
194 " -m <min balance>\n"
195 " -M <max balance>\n"
196 " Set the Maximum/Minimum balances shown in `dispense acct`\n"
199 " Item ID of the form <type>:<num> where <type> is a non-empty string of alpha-numeric characters, and <num> is a non-negative integer\n"
205 int main(int argc, char *argv[])
213 // -- Create regular expressions
214 // > Code Type Count ...
215 CompileRegex(&gArrayRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([0-9]+)", REG_EXTENDED); //
216 // > Code Type Ident Status Price Desc
217 CompileRegex(&gItemRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([A-Za-z]+):([0-9]+)\\s+(avail|sold|error)\\s+([0-9]+)\\s+(.+)$", REG_EXTENDED);
218 // > Code 'SALT' salt
219 CompileRegex(&gSaltRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+(.+)$", REG_EXTENDED);
220 // > Code 'User' Username Balance Flags
221 CompileRegex(&gUserInfoRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([^ ]+)\\s+(-?[0-9]+)\\s+(.+)$", REG_EXTENDED);
223 CompileRegex(&gUserItemIdentRegex, "^([A-Za-z]+):([0-9]+)$", REG_EXTENDED);
226 for( i = 1; i < argc; i ++ )
240 if( i + 1 >= argc ) {
241 fprintf(stderr, "%s: -c takes an argument\n", argv[0]);
245 giDispenseCount = atoi(argv[++i]);
246 if( giDispenseCount < 1 || giDispenseCount > DISPENSE_MULTIPLE_MAX ) {
247 fprintf(stderr, "Sorry, only 1-20 can be passed to -c (safety)\n");
253 case 'm': // Minimum balance
254 if( i + 1 >= argc ) {
255 fprintf(stderr, "%s: -m takes an argument\n", argv[0]);
259 giMinimumBalance = atoi(argv[++i]);
261 case 'M': // Maximum balance
262 if( i + 1 >= argc ) {
263 fprintf(stderr, "%s: -M takes an argument\n", argv[0]);
267 giMaximumBalance = atoi(argv[++i]);
270 case 'u': // Override User
271 if( i + 1 >= argc ) {
272 fprintf(stderr, "%s: -u takes an argument\n", argv[0]);
276 gsEffectiveUser = argv[++i];
279 case 'H': // Override remote host
280 if( i + 1 >= argc ) {
281 fprintf(stderr, "%s: -H takes an argument\n", argv[0]);
285 gsDispenseServer = argv[++i];
287 case 'P': // Override remote port
288 if( i + 1 >= argc ) {
289 fprintf(stderr, "%s: -P takes an argument\n", argv[0]);
293 giDispensePort = atoi(argv[++i]);
296 // Set slot name/price
298 if( giTextArgc != 0 ) {
299 fprintf(stderr, "%s: -s must appear before other arguments\n", argv[0]);
303 gsTextArgs[0] = "slot"; // HACK!!
307 case 'G': // Don't use GUI
308 giUIMode = UI_MODE_BASIC;
310 case 'D': // Drinks only
311 giUIMode = UI_MODE_DRINKSONLY;
313 case 'n': // Dry Run / read-only
317 if( strcmp(argv[i], "--help") == 0 ) {
322 fprintf(stderr, "%s: Unknown switch '%s'\n", argv[0], argv[i]);
328 // The first argument is not allowed to begin with 'i'
329 // (catches most bad flags)
330 if( giTextArgc == 0 ) {
331 fprintf(stderr, "%s: Unknown switch '%s'\n", argv[0], argv[i]);
335 if( giTextArgc + 1 == MAX_TXT_ARGS )
337 fprintf(stderr, "ERROR: Too many arguments\n");
340 gsTextArgs[giTextArgc++] = argv[i];
347 if( giTextArgc + 1 == MAX_TXT_ARGS )
349 fprintf(stderr, "ERROR: Too many arguments\n");
353 gsTextArgs[giTextArgc++] = argv[i];
360 if( strcmp(gsTextArgs[0], "acct") == 0 )
363 sock = OpenConnection(gsDispenseServer, giDispensePort);
364 if( sock < 0 ) return RV_SOCKET_ERROR;
366 if( giTextArgc == 1 ) {
367 ret = Dispense_EnumUsers(sock);
372 // gsTextArgs[1]: Username
375 if( giTextArgc != 2 )
377 if( giTextArgc != 4 ) {
378 fprintf(stderr, "`dispense acct` requires a reason\n");
383 // Authentication required
384 ret = Authenticate(sock);
387 // gsTextArgs[1]: Username
388 // gsTextArgs[2]: Ammount
389 // gsTextArgs[3]: Reason
391 if( gsTextArgs[2][0] == '=' ) {
393 if( gsTextArgs[2][1] != '0' && atoi(gsTextArgs[2]+1) == 0 ) {
394 fprintf(stderr, "Error: Invalid balance to be set\n");
398 ret = Dispense_SetBalance(sock, gsTextArgs[1], atoi(gsTextArgs[2]+1), gsTextArgs[3]);
402 ret = Dispense_AlterBalance(sock, gsTextArgs[1], atoi(gsTextArgs[2]), gsTextArgs[3]);
405 // TODO: Preserve ret if non-zero
407 // Show user information
408 ret = Dispense_ShowUser(sock, gsTextArgs[1]);
415 // - "Here, have some money."
416 else if( strcmp(gsTextArgs[0], "give") == 0 )
418 if( giTextArgc != 4 ) {
419 fprintf(stderr, "`dispense give` takes three arguments\n");
424 // gsTextArgs[1]: Destination
425 // gsTextArgs[2]: Ammount
426 // gsTextArgs[3]: Reason
429 sock = OpenConnection(gsDispenseServer, giDispensePort);
430 if( sock < 0 ) return RV_SOCKET_ERROR;
433 ret = Authenticate(sock);
436 ret = Dispense_Give(sock, gsTextArgs[1], atoi(gsTextArgs[2]), gsTextArgs[3]);
444 // - User administration (Admin Only)
445 if( strcmp(gsTextArgs[0], "user") == 0 )
447 // Check argument count
448 if( giTextArgc == 1 ) {
449 fprintf(stderr, "Error: `dispense user` requires arguments\n");
455 sock = OpenConnection(gsDispenseServer, giDispensePort);
456 if( sock < 0 ) return RV_SOCKET_ERROR;
458 // Attempt authentication
459 ret = Authenticate(sock);
463 if( strcmp(gsTextArgs[1], "add") == 0 )
465 if( giTextArgc != 3 ) {
466 fprintf(stderr, "Error: `dispense user add` requires an argument\n");
471 ret = Dispense_AddUser(sock, gsTextArgs[2]);
474 else if( strcmp(gsTextArgs[1], "type") == 0 || strcmp(gsTextArgs[1], "flags") == 0 )
476 if( giTextArgc != 4 ) {
477 fprintf(stderr, "Error: `dispense user type` requires two arguments\n");
482 ret = Dispense_SetUserType(sock, gsTextArgs[2], gsTextArgs[3]);
486 fprintf(stderr, "Error: Unknown sub-command for `dispense user`\n");
494 else if( strcmp(gsTextArgs[0], "donate") == 0 )
496 // Check argument count
497 if( giTextArgc != 3 ) {
498 fprintf(stderr, "Error: `dispense donate` requires two arguments\n");
504 sock = OpenConnection(gsDispenseServer, giDispensePort);
505 if( sock < 0 ) return RV_SOCKET_ERROR;
507 // Attempt authentication
508 ret = Authenticate(sock);
512 ret = Dispense_Donate(sock, atoi(gsTextArgs[1]), gsTextArgs[2]);
519 else if( strcmp(gsTextArgs[0], "refund") == 0 )
522 // Check argument count
523 if( giTextArgc != 3 && giTextArgc != 4 ) {
524 fprintf(stderr, "Error: `dispense refund` takes 2 or 3 arguments\n");
530 sock = OpenConnection(gsDispenseServer, giDispensePort);
531 if(sock < 0) return RV_SOCKET_ERROR;
533 // Attempt authentication
534 ret = Authenticate(sock);
537 if( giTextArgc == 4 ) {
538 price = atoi(gsTextArgs[3]);
540 fprintf(stderr, "Error: Override price is invalid (should be > 0)\n");
545 // Username, Item, cost
546 ret = Dispense_Refund(sock, gsTextArgs[1], gsTextArgs[2], price);
550 return RV_UNKNOWN_ERROR;
552 // Query an item price
553 else if( strcmp(gsTextArgs[0], "iteminfo") == 0 )
555 regmatch_t matches[3];
558 // Check argument count
559 if( giTextArgc != 2 ) {
560 fprintf(stderr, "Error: `dispense iteminfo` requires an argument\n");
565 if( RunRegex(&gUserItemIdentRegex, gsTextArgs[1], 3, matches, NULL) != 0 ) {
566 fprintf(stderr, "Error: Invalid item ID passed (<type>:<id> expected)\n");
569 type = gsTextArgs[1] + matches[1].rm_so;
570 gsTextArgs[1][ matches[1].rm_eo ] = '\0';
571 id = atoi( gsTextArgs[1] + matches[2].rm_so );
573 sock = OpenConnection(gsDispenseServer, giDispensePort);
574 if( sock < 0 ) return RV_SOCKET_ERROR;
576 ret = Dispense_ItemInfo(sock, type, id);
581 else if( strcmp(gsTextArgs[0], "slot") == 0 )
583 regmatch_t matches[3];
584 char *item_type, *newname;
588 if( giTextArgc != 4 ) {
589 fprintf(stderr, "Error: `dispense slot` takes three arguments\n");
595 if( RunRegex(&gUserItemIdentRegex, gsTextArgs[1], 3, matches, NULL) != 0 ) {
596 fprintf(stderr, "Error: Invalid item ID passed (<type>:<id> expected)\n");
599 item_type = gsTextArgs[1] + matches[1].rm_so;
600 gsTextArgs[1][ matches[1].rm_eo ] = '\0';
601 item_id = atoi( gsTextArgs[1] + matches[2].rm_so );
604 price = atoi( gsTextArgs[2] );
605 if( price <= 0 && gsTextArgs[2][0] != '0' ) {
606 fprintf(stderr, "Error: Invalid price passed (must be >= 0)\n");
611 newname = gsTextArgs[3];
615 for( pos = newname; *pos; pos ++ )
617 if( !isalnum(*pos) && *pos != ' ' ) {
618 fprintf(stderr, "Error: You should only have letters, numbers and spaces in an item name\n");
624 // Connect & Authenticate
625 sock = OpenConnection(gsDispenseServer, giDispensePort);
626 if( sock < 0 ) return RV_SOCKET_ERROR;
627 ret = Authenticate(sock);
630 ret = Dispense_SetItem(sock, item_type, item_id, price, newname);
635 // Item name / pattern
638 gsItemPattern = gsTextArgs[0];
642 sock = OpenConnection(gsDispenseServer, giDispensePort);
643 if( sock < 0 ) return RV_SOCKET_ERROR;
645 // Get the user's balance
646 ret = GetUserBalance(sock);
650 PopulateItemList(sock);
652 // Disconnect from server
655 if( gsItemPattern && gsItemPattern[0] )
657 regmatch_t matches[3];
659 if( strcmp(gsItemPattern, "door") == 0 )
661 // Connect, Authenticate, dispense and close
662 sock = OpenConnection(gsDispenseServer, giDispensePort);
663 if( sock < 0 ) return RV_SOCKET_ERROR;
664 ret = Authenticate(sock);
666 ret = DispenseItem(sock, "door", 0);
670 // Item id (<type>:<num>)
671 else if( RunRegex(&gUserItemIdentRegex, gsItemPattern, 3, matches, NULL) == 0 )
676 // Get and finish ident
677 ident = gsItemPattern + matches[1].rm_so;
678 gsItemPattern[matches[1].rm_eo] = '\0';
680 id = atoi( gsItemPattern + matches[2].rm_so );
682 // Connect, Authenticate, dispense and close
683 sock = OpenConnection(gsDispenseServer, giDispensePort);
684 if( sock < 0 ) return RV_SOCKET_ERROR;
686 Dispense_ItemInfo(sock, ident, id);
688 ret = Authenticate(sock);
690 ret = DispenseItem(sock, ident, id);
694 // Item number (6 = coke)
695 else if( strcmp(gsItemPattern, "0") == 0 || atoi(gsItemPattern) > 0 )
697 i = atoi(gsItemPattern);
704 for( i = 0; i < giNumItems; i ++ )
706 // Prefix match (with case-insensitive match)
707 for( j = 0; gsItemPattern[j]; j ++ )
709 if( gaItems[i].Desc[j] == gsItemPattern[j] )
711 if( tolower(gaItems[i].Desc[j]) == tolower(gsItemPattern[j]) )
715 // Check if the prefix matched
716 if( gsItemPattern[j] != '\0' )
720 if( gaItems[i].Desc[j] == '\0' ) {
725 // Only one match allowed
730 // TODO: Allow ambiguous matches?
731 // or just print a wanrning
732 printf("Warning - Ambiguous pattern, stopping\n");
737 // Was a match found?
740 fprintf(stderr, "No item matches the passed string\n");
747 else if( giUIMode != UI_MODE_BASIC )
753 // Very basic dispense interface
754 for( i = 0; i < giNumItems; i ++ ) {
756 if( i && strcmp(gaItems[i].Type, gaItems[i-1].Type) != 0 )
759 printf("%2i %s:%i\t%3i %s\n", i, gaItems[i].Type, gaItems[i].ID,
760 gaItems[i].Price, gaItems[i].Desc);
769 fgets(buffer, BUFSIZ, stdin);
773 if( buf[0] == 'q' ) break;
777 if( i != 0 || buf[0] == '0' )
779 if( i < 0 || i >= giNumItems ) {
780 printf("Bad item %i (should be between 0 and %i)\n", i, giNumItems);
789 // Check for a valid item ID
793 // Connect, Authenticate, dispense and close
794 sock = OpenConnection(gsDispenseServer, giDispensePort);
795 if( sock < 0 ) return RV_SOCKET_ERROR;
797 ret = Dispense_ItemInfo(sock, gaItems[i].Type, gaItems[i].ID);
800 ret = Authenticate(sock);
803 for( j = 0; j < giDispenseCount; j ++ ) {
804 ret = DispenseItem(sock, gaItems[i].Type, gaItems[i].ID);
808 printf("%i items dispensed\n", j);
813 Dispense_ShowUser(sock, gsUserName);
818 // -------------------
819 // --- NCurses GUI ---
820 // -------------------
822 * \brief Render the NCurses UI
824 int ShowNCursesUI(void)
829 const int displayMinWidth = 40;
830 char *titleString = "Dispense";
835 int ret = -2; // -2: Used for marking "no return yet"
837 char balance_str[5+1+2+1]; // If $9999.99 is too little, something's wrong
844 if( gsEffectiveUser )
845 username = gsEffectiveUser;
847 pwd = getpwuid( getuid() );
848 username = pwd->pw_name;
851 snprintf(balance_str, sizeof balance_str, "$%i.%02i", giUserBalance/100, abs(giUserBalance)%100);
858 maxItemIndex = ShowItemAt(0, 0, 0, -1, 0);
859 // Get item count per screen
860 // - 6: randomly chosen (Need at least 3)
861 itemCount = LINES - 6;
862 if( itemCount > maxItemIndex )
863 itemCount = maxItemIndex;
866 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
871 height = itemCount + 3;
872 width = displayMinWidth;
875 xBase = COLS/2 - width/2;
876 yBase = LINES/2 - height/2;
881 PrintAlign(yBase, xBase, width, "/", '-', titleString, '-', "\\");
884 for( i = 0; i < itemCount; i ++ )
888 move( yBase + 1 + i, xBase );
893 // Check for the '...' row
894 // - Oh god, magic numbers!
895 if( (i == 0 && itemBase > 0)
896 || (i == itemCount - 1 && itemBase < maxItemIndex - itemCount) )
898 printw(" ..."); pos += 8;
899 times = (width - pos) - 1;
900 while(times--) addch(' ');
905 yBase + 1 + i, xBase + pos, // Position
906 (width - pos) - 3, // Width
907 itemBase + i, // Index
908 !!(currentItem == itemBase + i) // Hilighted
913 // Scrollbar (if needed)
914 if( maxItemIndex > itemCount ) {
918 else if( i == itemCount - 1 ) {
922 int percentage = itemBase * 100 / (maxItemIndex-itemCount);
923 if( i-1 == percentage*(itemCount-3)/100 ) {
937 PrintAlign(yBase+height-2, xBase, width, "\\", '-', "", '-', "/");
940 // - Username, balance, flags
941 PrintAlign(yBase+height-1, xBase+1, width-2,
942 username, ' ', balance_str, ' ', gsUserFlags);
958 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
961 if( currentItem >= maxItemIndex ) {
964 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
971 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
974 if( currentItem < 0 ) {
975 currentItem = maxItemIndex - 1;
977 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
987 if( itemCount > maxItemIndex && currentItem < itemBase + 2 && itemBase > 0 )
988 itemBase = currentItem - 2;
989 if( itemCount > maxItemIndex && currentItem > itemBase + itemCount - 2 && itemBase < maxItemIndex-1 )
990 itemBase = currentItem - itemCount + 2;
996 ret = ShowItemAt(0, 0, 0, currentItem, 0);
1000 ret = -1; // -1: Return with no dispense
1004 // Check if the return value was changed
1005 if( ret != -2 ) break;
1017 * \brief Show item \a Index at (\a Col, \a Row)
1018 * \return Dispense index of item
1019 * \note Part of the NCurses UI
1021 int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted)
1031 // - This assumes that
1032 case UI_MODE_STANDARD:
1034 // Index = -1, request limit
1035 if( Index < 0 || Index >= giNumItems+2 )
1036 return giNumItems+2;
1041 name = "Coke Machine";
1042 Index = -1; // -1 indicates a label
1049 name = gaItems[Index].Desc;
1050 price = gaItems[Index].Price;
1051 status = gaItems[Index].Status;
1059 name = "Electronic Payment System";
1060 Index = -1; // -1 indicates a label
1065 name = gaItems[Index].Desc;
1066 price = gaItems[Index].Price;
1067 status = gaItems[Index].Status;
1073 // Width = 0, don't print
1076 // 4 preceding, 5 price
1077 int nameWidth = Width - 4 - 5;
1082 // Show hilight and status
1101 printw("%-*.*s", nameWidth, nameWidth, name);
1103 // getyx(stdscr, _y, _x);
1104 // Assumes max 4 digit prices
1105 // times = Width - 5 - (_x - Col); // TODO: Better handling for large prices
1106 // while(times--) addch(' ');
1108 printw(" %4i", price);
1112 printw("-- %s", name);
1113 getyx(stdscr, _y, _x);
1114 times = Width - 4 - (_x - Col);
1115 while(times--) addch(' ');
1120 // If the item isn't availiable for sale, return -1 (so it's skipped)
1121 if( status || price >= giUserBalance )
1128 * \brief Print a three-part string at the specified position (formatted)
1129 * \note NCurses UI Helper
1131 * Prints \a Left on the left of the area, \a Right on the righthand side
1132 * and \a Mid in the middle of the area. These are padded with \a Pad1
1133 * between \a Left and \a Mid, and \a Pad2 between \a Mid and \a Right.
1135 * ::printf style format codes are allowed in \a Left, \a Mid and \a Right,
1136 * and the arguments to these are read in that order.
1138 void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1,
1139 const char *Mid, char Pad2, const char *Right, ...)
1141 int lLen, mLen, rLen;
1146 // Get the length of the strings
1147 va_start(args, Right);
1148 lLen = vsnprintf(NULL, 0, Left, args);
1149 mLen = vsnprintf(NULL, 0, Mid, args);
1150 rLen = vsnprintf(NULL, 0, Right, args);
1154 if( lLen + mLen/2 > Width/2 || mLen/2 + rLen > Width/2 ) {
1155 return ; // TODO: What to do?
1161 va_start(args, Right);
1165 vsnprintf(tmp, lLen+1, Left, args);
1169 times = (Width - mLen)/2 - lLen;
1170 while(times--) addch(Pad1);
1174 vsnprintf(tmp, mLen+1, Mid, args);
1178 times = (Width - mLen)/2 - rLen;
1179 if( (Width - mLen) % 2 ) times ++;
1180 while(times--) addch(Pad2);
1184 vsnprintf(tmp, rLen+1, Right, args);
1189 // ---------------------
1190 // --- Coke Protocol ---
1191 // ---------------------
1192 int OpenConnection(const char *Host, int Port)
1194 struct hostent *host;
1195 struct sockaddr_in serverAddr;
1198 host = gethostbyname(Host);
1200 fprintf(stderr, "Unable to look up '%s'\n", Host);
1204 memset(&serverAddr, 0, sizeof(serverAddr));
1206 serverAddr.sin_family = AF_INET; // IPv4
1207 // NOTE: I have a suspicion that IPv6 will play sillybuggers with this :)
1208 serverAddr.sin_addr.s_addr = *((unsigned long *) host->h_addr_list[0]);
1209 serverAddr.sin_port = htons(Port);
1211 sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
1213 fprintf(stderr, "Failed to create socket\n");
1217 // printf("geteuid() = %i, getuid() = %i\n", geteuid(), getuid());
1219 if( geteuid() == 0 || getuid() == 0 )
1222 struct sockaddr_in localAddr;
1223 memset(&localAddr, 0, sizeof(localAddr));
1224 localAddr.sin_family = AF_INET; // IPv4
1226 // Loop through all the top ports until one is avaliable
1227 for( i = 512; i < 1024; i ++)
1229 localAddr.sin_port = htons(i); // IPv4
1230 // Attempt to bind to low port for autoauth
1231 if( bind(sock, (struct sockaddr*)&localAddr, sizeof(localAddr)) == 0 )
1235 printf("Warning: AUTOAUTH unavaliable\n");
1237 // printf("Bound to 0.0.0.0:%i\n", i);
1240 if( connect(sock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0 ) {
1241 fprintf(stderr, "Failed to connect to server\n");
1245 // We're not authenticated if the connection has just opened
1246 gbIsAuthenticated = 0;
1252 * \brief Authenticate with the server
1253 * \return Boolean Failure
1255 int Authenticate(int Socket)
1260 #if ATTEMPT_PASSWORD_AUTH
1263 regmatch_t matches[4];
1266 if( gbIsAuthenticated ) return 0;
1269 pwd = getpwuid( getuid() );
1271 // Attempt automatic authentication
1272 sendf(Socket, "AUTOAUTH %s\n", pwd->pw_name);
1274 // Check if it worked
1275 buf = ReadLine(Socket);
1277 responseCode = atoi(buf);
1278 switch( responseCode )
1280 case 200: // Autoauth succeeded, return
1284 case 401: // Untrusted, attempt password authentication
1287 #if ATTEMPT_PASSWORD_AUTH
1288 sendf(Socket, "USER %s\n", pwd->pw_name);
1289 printf("Using username %s\n", pwd->pw_name);
1291 buf = ReadLine(Socket);
1294 // Expected format: 100 SALT <something> ...
1295 // OR : 100 User Set
1296 RunRegex(&gSaltRegex, buf, 4, matches, "Malformed server response");
1297 responseCode = atoi(buf);
1298 if( responseCode != 100 ) {
1299 fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
1301 return RV_UNKNOWN_ERROR; // ERROR
1305 if( memcmp( buf+matches[2].rm_so, "SALT", matches[2].rm_eo - matches[2].rm_so) == 0) {
1306 // Store it for later
1307 memcpy( salt, buf + matches[3].rm_so, matches[3].rm_eo - matches[3].rm_so );
1308 salt[ matches[3].rm_eo - matches[3].rm_so ] = 0;
1312 // Give three attempts
1313 for( i = 0; i < 3; i ++ )
1315 int ofs = strlen(pwd->pw_name)+strlen(salt);
1318 char *pass = getpass("Password: ");
1321 // Create hash string
1322 // <username><salt><hash>
1323 strcpy(tmp, pwd->pw_name);
1325 SHA1( (unsigned char*)pass, strlen(pass), h );
1326 memcpy(tmp+ofs, h, 20);
1329 SHA1( (unsigned char*)tmp, ofs+20, h );
1330 sprintf(tmpBuf, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
1331 h[ 0], h[ 1], h[ 2], h[ 3], h[ 4], h[ 5], h[ 6], h[ 7], h[ 8], h[ 9],
1332 h[10], h[11], h[12], h[13], h[14], h[15], h[16], h[17], h[18], h[19]
1336 sendf(Socket, "PASS %s\n", tmpBuf);
1337 buf = ReadLine(Socket);
1339 responseCode = atoi(buf);
1341 if( responseCode == 200 ) break;
1342 // Bad username/password
1343 if( responseCode == 401 ) continue;
1345 fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
1347 return RV_UNKNOWN_ERROR;
1351 return RV_INVALID_USER; // 2 = Bad Password
1354 fprintf(stderr, "Untrusted host, AUTOAUTH unavaliable\n");
1355 return RV_INVALID_USER;
1359 case 404: // Bad Username
1360 fprintf(stderr, "Bad Username '%s'\n", pwd->pw_name);
1362 return RV_INVALID_USER;
1365 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1366 printf("%s\n", buf);
1368 return RV_UNKNOWN_ERROR;
1371 // Set effective user
1372 if( gsEffectiveUser ) {
1373 sendf(Socket, "SETEUSER %s\n", gsEffectiveUser);
1375 buf = ReadLine(Socket);
1376 responseCode = atoi(buf);
1378 switch(responseCode)
1381 printf("Running as '%s' by '%s'\n", gsEffectiveUser, pwd->pw_name);
1385 printf("Only coke members can use `dispense -u`\n");
1387 return RV_PERMISSIONS;
1390 printf("Invalid user selected\n");
1392 return RV_INVALID_USER;
1395 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1396 printf("%s\n", buf);
1398 return RV_UNKNOWN_ERROR;
1404 gbIsAuthenticated = 1;
1409 int GetUserBalance(int Socket)
1411 regmatch_t matches[6];
1418 if( gsEffectiveUser ) {
1419 gsUserName = gsEffectiveUser;
1422 pwd = getpwuid( getuid() );
1423 gsUserName = strdup(pwd->pw_name);
1427 sendf(Socket, "USER_INFO %s\n", gsUserName);
1428 buf = ReadLine(Socket);
1429 responseCode = atoi(buf);
1430 switch(responseCode)
1432 case 202: break; // Ok
1435 printf("Invalid user? (USER_INFO failed)\n");
1437 return RV_INVALID_USER;
1440 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1441 printf("%s\n", buf);
1443 return RV_UNKNOWN_ERROR;
1446 RunRegex(&gUserInfoRegex, buf, 6, matches, "Malformed server response");
1448 giUserBalance = atoi( buf + matches[4].rm_so );
1449 gsUserFlags = strdup( buf + matches[5].rm_so );
1457 * \brief Read an item info response from the server
1458 * \param Dest Destination for the read item (strings will be on the heap)
1460 int ReadItemInfo(int Socket, tItem *Dest)
1465 regmatch_t matches[8];
1469 buf = ReadLine(Socket);
1470 responseCode = atoi(buf);
1472 switch(responseCode)
1477 printf("Bad item name\n");
1482 fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n%s", responseCode, buf);
1484 return RV_UNKNOWN_ERROR;
1487 RunRegex(&gItemRegex, buf, 8, matches, "Malformed server response");
1489 buf[ matches[3].rm_eo ] = '\0';
1490 buf[ matches[5].rm_eo ] = '\0';
1491 buf[ matches[7].rm_eo ] = '\0';
1493 statusStr = &buf[ matches[5].rm_so ];
1495 Dest->ID = atoi( buf + matches[4].rm_so );
1497 if( strcmp(statusStr, "avail") == 0 )
1499 else if( strcmp(statusStr, "sold") == 0 )
1501 else if( strcmp(statusStr, "error") == 0 )
1504 fprintf(stderr, "Unknown response from dispense server (status '%s')\n",
1506 return RV_UNKNOWN_ERROR;
1508 Dest->Price = atoi( buf + matches[6].rm_so );
1510 // Hack a little to reduce heap fragmentation
1512 char tmpType[strlen(buf + matches[3].rm_so) + 1];
1513 char tmpDesc[strlen(buf + matches[7].rm_so) + 1];
1514 strcpy(tmpType, buf + matches[3].rm_so);
1515 strcpy(tmpDesc, buf + matches[7].rm_so);
1517 Dest->Type = strdup( tmpType );
1518 Dest->Desc = strdup( tmpDesc );
1525 * \brief Fill the item information structure
1526 * \return Boolean Failure
1528 void PopulateItemList(int Socket)
1533 char *itemType, *itemStart;
1535 regmatch_t matches[4];
1537 // Ask server for stock list
1538 send(Socket, "ENUM_ITEMS\n", 11, 0);
1539 buf = ReadLine(Socket);
1541 //printf("Output: %s\n", buf);
1543 responseCode = atoi(buf);
1544 if( responseCode != 201 ) {
1545 fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n", responseCode);
1546 exit(RV_UNKNOWN_ERROR);
1549 // - Get item list -
1552 // 201 Items <count>
1554 RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
1556 itemType = &buf[ matches[2].rm_so ]; buf[ matches[2].rm_eo ] = '\0';
1557 count = atoi( &buf[ matches[3].rm_so ] );
1560 if( strcmp(itemType, "Items") != 0 ) {
1562 fprintf(stderr, "Unexpected array type, expected 'Items', got '%s'\n",
1564 exit(RV_UNKNOWN_ERROR);
1567 itemStart = &buf[ matches[3].rm_eo ];
1572 gaItems = malloc( giNumItems * sizeof(tItem) );
1574 // Fetch item information
1575 for( i = 0; i < giNumItems; i ++ )
1577 ReadItemInfo( Socket, &gaItems[i] );
1581 buf = ReadLine(Socket);
1582 responseCode = atoi(buf);
1584 if( responseCode != 200 ) {
1585 fprintf(stderr, "Unknown response from dispense server %i\n'%s'",
1596 * \brief Get information on an item
1597 * \return Boolean Failure
1599 int Dispense_ItemInfo(int Socket, const char *Type, int ID)
1605 sendf(Socket, "ITEM_INFO %s:%i\n", Type, ID);
1607 ret = ReadItemInfo(Socket, &item);
1610 printf("%8s:%-2i %2i.%02i %s\n",
1612 item.Price/100, item.Price%100,
1622 * \brief Dispense an item
1623 * \return Boolean Failure
1625 int DispenseItem(int Socket, const char *Type, int ID)
1627 int ret, responseCode;
1630 // Check for a dry run
1632 printf("Dry Run - No action\n");
1637 sendf(Socket, "DISPENSE %s:%i\n", Type, ID);
1638 buf = ReadLine(Socket);
1640 responseCode = atoi(buf);
1641 switch( responseCode )
1644 printf("Dispense OK\n");
1648 printf("Not authenticated\n");
1649 ret = RV_PERMISSIONS;
1652 printf("Insufficient balance\n");
1656 printf("Bad item name\n");
1660 printf("Item failed to dispense, is the slot empty?\n");
1661 ret = RV_SERVER_ERROR;
1664 printf("Dispense not possible (slot empty/permissions)\n");
1665 ret = RV_SERVER_ERROR;
1668 printf("Unknown response code %i ('%s')\n", responseCode, buf);
1669 ret = RV_UNKNOWN_ERROR;
1678 * \brief Alter a user's balance
1680 int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason)
1685 // Check for a dry run
1687 printf("Dry Run - No action\n");
1692 if( Ammount == 0 ) {
1693 printf("An ammount would be nice\n");
1694 return RV_ARGUMENTS;
1697 sendf(Socket, "ADD %s %i %s\n", Username, Ammount, Reason);
1698 buf = ReadLine(Socket);
1700 responseCode = atoi(buf);
1703 switch(responseCode)
1705 case 200: return 0; // OK
1707 fprintf(stderr, "Insufficient balance\n");
1709 case 403: // Not in coke
1710 fprintf(stderr, "You are not in coke (sucker)\n");
1711 return RV_PERMISSIONS;
1712 case 404: // Unknown user
1713 fprintf(stderr, "Unknown user '%s'\n", Username);
1714 return RV_INVALID_USER;
1716 fprintf(stderr, "Unknown response code %i\n", responseCode);
1717 return RV_UNKNOWN_RESPONSE;
1724 * \brief Set a user's balance
1725 * \note Only avaliable to dispense admins
1727 int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason)
1732 // Check for a dry run
1734 printf("Dry Run - No action\n");
1738 sendf(Socket, "SET %s %i %s\n", Username, Balance, Reason);
1739 buf = ReadLine(Socket);
1741 responseCode = atoi(buf);
1744 switch(responseCode)
1746 case 200: return 0; // OK
1747 case 403: // Not in coke
1748 fprintf(stderr, "You are not an admin\n");
1749 return RV_PERMISSIONS;
1750 case 404: // Unknown user
1751 fprintf(stderr, "Unknown user '%s'\n", Username);
1752 return RV_INVALID_USER;
1754 fprintf(stderr, "Unknown response code %i\n", responseCode);
1755 return RV_UNKNOWN_RESPONSE;
1762 * \brief Give money to another user
1764 int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason)
1770 printf("Sorry, you can only give, you can't take.\n");
1771 return RV_ARGUMENTS;
1774 // Fast return on zero
1775 if( Ammount == 0 ) {
1776 printf("Are you actually going to give any?\n");
1777 return RV_ARGUMENTS;
1780 // Check for a dry run
1782 printf("Dry Run - No action\n");
1786 sendf(Socket, "GIVE %s %i %s\n", Username, Ammount, Reason);
1788 buf = ReadLine(Socket);
1789 responseCode = atoi(buf);
1791 switch(responseCode)
1794 printf("Give succeeded\n");
1795 return RV_SUCCESS; // OK
1798 fprintf(stderr, "Insufficient balance\n");
1801 case 404: // Unknown user
1802 fprintf(stderr, "Unknown user '%s'\n", Username);
1803 return RV_INVALID_USER;
1806 fprintf(stderr, "Unknown response code %i\n", responseCode);
1807 return RV_UNKNOWN_RESPONSE;
1813 int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride)
1816 int responseCode, ret = -1;
1819 if( RunRegex(&gUserItemIdentRegex, Item, 0, NULL, NULL) != 0 )
1821 fprintf(stderr, "Error: Invalid item ID passed (should be <type>:<num>)\n");
1822 return RV_ARGUMENTS;
1825 // Check username (quick)
1826 if( strchr(Username, ' ') || strchr(Username, '\n') )
1828 fprintf(stderr, "Error: Username is invalid (no spaces or newlines please)\n");
1829 return RV_ARGUMENTS;
1833 sendf(Socket, "REFUND %s %s %i\n", Username, Item, PriceOverride);
1835 buf = ReadLine(Socket);
1836 responseCode = atoi(buf);
1837 switch(responseCode)
1840 Dispense_ShowUser(Socket, Username); // Show destination account
1844 fprintf(stderr, "Refund access is only avaliable to coke members\n");
1845 ret = RV_PERMISSIONS;
1848 fprintf(stderr, "Unknown user '%s' passed\n", Username);
1849 ret = RV_INVALID_USER;
1852 fprintf(stderr, "Invalid item '%s' passed\n", Item);
1856 fprintf(stderr, "Unknown response from server %i\n%s\n", responseCode, buf);
1865 * \brief Donate money to the club
1867 int Dispense_Donate(int Socket, int Ammount, const char *Reason)
1873 printf("Sorry, you can only give, you can't take.\n");
1877 // Fast return on zero
1878 if( Ammount == 0 ) {
1879 printf("Are you actually going to give any?\n");
1883 // Check for a dry run
1885 printf("Dry Run - No action\n");
1889 sendf(Socket, "DONATE %i %s\n", Ammount, Reason);
1890 buf = ReadLine(Socket);
1892 responseCode = atoi(buf);
1895 switch(responseCode)
1897 case 200: return 0; // OK
1900 fprintf(stderr, "Insufficient balance\n");
1904 fprintf(stderr, "Unknown response code %i\n", responseCode);
1912 * \brief Enumerate users
1914 int Dispense_EnumUsers(int Socket)
1919 regmatch_t matches[4];
1921 if( giMinimumBalance != INT_MIN ) {
1922 if( giMaximumBalance != INT_MAX ) {
1923 sendf(Socket, "ENUM_USERS min_balance:%i max_balance:%i\n", giMinimumBalance, giMaximumBalance);
1926 sendf(Socket, "ENUM_USERS min_balance:%i\n", giMinimumBalance);
1930 if( giMaximumBalance != INT_MAX ) {
1931 sendf(Socket, "ENUM_USERS max_balance:%i\n", giMaximumBalance);
1934 sendf(Socket, "ENUM_USERS\n");
1937 buf = ReadLine(Socket);
1938 responseCode = atoi(buf);
1940 switch(responseCode)
1942 case 201: break; // Ok, length follows
1945 fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
1950 // Get count (not actually used)
1951 RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
1952 nUsers = atoi( buf + matches[3].rm_so );
1953 printf("%i users returned\n", nUsers);
1958 // Read returned users
1960 buf = ReadLine(Socket);
1961 responseCode = atoi(buf);
1963 if( responseCode != 202 ) break;
1965 _PrintUserLine(buf);
1967 } while(responseCode == 202);
1969 // Check final response
1970 if( responseCode != 200 ) {
1971 fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
1981 int Dispense_ShowUser(int Socket, const char *Username)
1984 int responseCode, ret;
1986 sendf(Socket, "USER_INFO %s\n", Username);
1987 buf = ReadLine(Socket);
1989 responseCode = atoi(buf);
1991 switch(responseCode)
1994 _PrintUserLine(buf);
1999 printf("Unknown user '%s'\n", Username);
2004 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2014 void _PrintUserLine(const char *Line)
2016 regmatch_t matches[6];
2019 RunRegex(&gUserInfoRegex, Line, 6, matches, "Malformed server response");
2024 int usernameLen = matches[3].rm_eo - matches[3].rm_so;
2025 char username[usernameLen + 1];
2026 int flagsLen = matches[5].rm_eo - matches[5].rm_so;
2027 char flags[flagsLen + 1];
2029 memcpy(username, Line + matches[3].rm_so, usernameLen);
2030 username[usernameLen] = '\0';
2031 memcpy(flags, Line + matches[5].rm_so, flagsLen);
2032 flags[flagsLen] = '\0';
2034 bal = atoi(Line + matches[4].rm_so);
2035 printf("%-15s: $%8.02f (%s)\n", username, ((float)bal)/100, flags);
2039 int Dispense_AddUser(int Socket, const char *Username)
2042 int responseCode, ret;
2044 // Check for a dry run
2046 printf("Dry Run - No action\n");
2050 sendf(Socket, "USER_ADD %s\n", Username);
2052 buf = ReadLine(Socket);
2053 responseCode = atoi(buf);
2055 switch(responseCode)
2058 printf("User '%s' added\n", Username);
2063 printf("Only wheel can add users\n");
2068 printf("User '%s' already exists\n", Username);
2073 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2083 int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString)
2086 int responseCode, ret;
2088 // Check for a dry run
2090 printf("Dry Run - No action\n");
2094 // TODO: Pre-validate the string
2096 sendf(Socket, "USER_FLAGS %s %s\n", Username, TypeString);
2098 buf = ReadLine(Socket);
2099 responseCode = atoi(buf);
2101 switch(responseCode)
2104 printf("User '%s' updated\n", Username);
2109 printf("Only wheel can modify users\n");
2110 ret = RV_PERMISSIONS;
2114 printf("User '%s' does not exist\n", Username);
2115 ret = RV_INVALID_USER;
2119 printf("Flag string is invalid\n");
2124 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2125 ret = RV_UNKNOWN_RESPONSE;
2134 int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName)
2137 int responseCode, ret;
2139 // Check for a dry run
2141 printf("Dry Run - No action\n");
2145 sendf(Socket, "UPDATE_ITEM %s:%i %i %s\n", Type, ID, NewPrice, NewName);
2147 buf = ReadLine(Socket);
2148 responseCode = atoi(buf);
2150 switch(responseCode)
2153 printf("Item %s:%i updated\n", Type, ID);
2158 printf("Only coke members can modify the slots\n");
2159 ret = RV_PERMISSIONS;
2163 printf("Invalid item passed\n");
2168 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2181 char *ReadLine(int Socket)
2183 static char buf[BUFSIZ];
2184 static int bufPos = 0;
2185 static int bufValid = 0;
2187 char *newline = NULL;
2189 char *ret = malloc(10);
2191 #if DEBUG_TRACE_SERVER
2192 printf("ReadLine: ");
2204 len = recv(Socket, buf+bufPos, BUFSIZ-1-bufPos, 0);
2207 return strdup("499 Client Connection Error\n");
2209 buf[bufPos+len] = '\0';
2212 newline = strchr( buf+bufPos, '\n' );
2217 retLen += strlen(buf+bufPos);
2218 ret = realloc(ret, retLen + 1);
2219 strcat( ret, buf+bufPos );
2222 int newLen = newline - (buf+bufPos) + 1;
2223 bufValid = len - newLen;
2226 if( len + bufPos == BUFSIZ - 1 ) bufPos = 0;
2229 #if DEBUG_TRACE_SERVER
2230 printf("%i '%s'\n", retLen, ret);
2236 int sendf(int Socket, const char *Format, ...)
2241 va_start(args, Format);
2242 len = vsnprintf(NULL, 0, Format, args);
2247 va_start(args, Format);
2248 vsnprintf(buf, len+1, Format, args);
2251 #if DEBUG_TRACE_SERVER
2252 printf("sendf: %s", buf);
2255 return send(Socket, buf, len, 0);
2259 char *trim(char *string)
2263 while( isspace(*string) )
2266 for( i = strlen(string); i--; )
2268 if( isspace(string[i]) )
2277 int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage)
2281 ret = regexec(regex, string, nMatches, matches, 0);
2282 if( ret && errorMessage ) {
2283 size_t len = regerror(ret, regex, NULL, 0);
2285 regerror(ret, regex, errorStr, len);
2286 printf("string = '%s'\n", string);
2287 fprintf(stderr, "%s\n%s", errorMessage, errorStr);
2294 void CompileRegex(regex_t *regex, const char *pattern, int flags)
2296 int ret = regcomp(regex, pattern, flags);
2298 size_t len = regerror(ret, regex, NULL, 0);
2300 regerror(ret, regex, errorStr, len);
2301 fprintf(stderr, "Regex compilation failed - %s\n", errorStr);