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Annotation of coherent/e/bin/uuinstall/port.c, revision 1.1

1.1     ! root        1: /* config.c:   this is the code for opening the config files;
        !             2:  *             printing a screen of existing ports, systems or
        !             3:  *             dialers; viewing or deleting an existing entry.
        !             4:  */
        !             5: 
        !             6: #include <stdio.h>
        !             7: #include <curses.h>
        !             8: #include <fcntl.h>
        !             9: #include "uuinstall.h"
        !            10: 
        !            11: char names[MAXENTRIES][15];    /* array of port names read */
        !            12: 
        !            13: /* open_config_file(): does just that, opens a configuration file */
        !            14: 
        !            15: open_config_file()
        !            16: {
        !            17: 
        !            18:        FILE * configfile;
        !            19: 
        !            20:        if(portflag){
        !            21:                if ( (configfile = fopen(PORTFILE,"r")) == NULL){
        !            22:                        printf("Error opening %s.\n",PORTFILE);
        !            23:                        exit_program(-1);
        !            24:                }
        !            25:        }
        !            26: 
        !            27:        if(sysflag){
        !            28:                if ( (configfile = fopen(SYSFILE,"r")) == NULL){
        !            29:                        printf("Error opening %s.\n",SYSFILE);
        !            30:                        exit_program(-1);
        !            31:                }
        !            32:        }
        !            33: 
        !            34:        if(dialflag){
        !            35:                if ( (configfile = fopen(DIALFILE,"r")) == NULL){
        !            36:                        printf("Error opening %s.\n",DIALFILE);
        !            37:                        exit_program(-1);
        !            38:                }
        !            39:        }
        !            40: 
        !            41:        /* file exists, but is empty */
        !            42:        if( -1 == read_entries(configfile)){
        !            43:                fclose(configfile);
        !            44:                return;
        !            45:        }
        !            46: 
        !            47:        fclose(configfile);
        !            48:        print_selections();
        !            49: 
        !            50:        lite(selwin,0,1,1);     /* highlight our first record */
        !            51:        prompt();
        !            52:        wrefresh(selwin);
        !            53: 
        !            54: }
        !            55: 
        !            56: 
        !            57: /* read the information from the specified file. We want to keep track of the
        !            58:  * port, system or dialer name we have read, the line we began reading it 
        !            59:  * on and the total number of entries read;
        !            60:  */
        !            61: 
        !            62: 
        !            63: read_entries(configfile)
        !            64: FILE * configfile;             /* pointer to our configuration file */
        !            65: {
        !            66: 
        !            67:        int x = 0;                      /* counter of lines read */
        !            68:        int size = 0;                   /* offset where we will find the
        !            69:                                         * port name, system name or dialer
        !            70:                                         * name on the first line of a port,
        !            71:                                         * dial or sys entry in a config file.
        !            72:                                         */
        !            73:        char buffer[256];
        !            74:        char lookfor[8];
        !            75: 
        !            76:        if(dialflag){
        !            77:                strcpy(lookfor,"dialer");
        !            78:                size = 7;
        !            79:        }
        !            80:        if(sysflag){
        !            81:                strcpy(lookfor,"system");
        !            82:                size = 7;
        !            83:        }
        !            84:        if(portflag){
        !            85:                strcpy(lookfor,"port");
        !            86:                size = 5;
        !            87:        }
        !            88: 
        !            89:        total_entries_found = 0;                /* total number of port entries found */
        !            90: 
        !            91:        while(fgets(buffer,sizeof(buffer) -1, configfile) != NULL){
        !            92:                x++;
        !            93: 
        !            94:                /* found first line of a configuration entry, copy name and
        !            95:                 * the line number we found it on.
        !            96:                 */
        !            97: 
        !            98:                if(strstr(buffer,lookfor)){
        !            99:                        /* there's a newline here, get rid of it */
        !           100:                        buffer[strlen(buffer) -1] = '\0';
        !           101:        /* if someone has editted the file to comment out an entry, we still
        !           102:         * want to display it, but must accomodate the new offset within the
        !           103:         * string of the actual name we want caused by the addition of a
        !           104:         * '#' character.
        !           105:         */
        !           106:                        while(isspace( *(buffer + size) ) ){
        !           107:                                size++;
        !           108:                        }
        !           109: 
        !           110:                        strcpy(names[total_entries_found],buffer + size);
        !           111:                        startpos[total_entries_found] = x;
        !           112:                        total_entries_found++;
        !           113: 
        !           114:                        if (total_entries_found == MAXENTRIES){
        !           115:                                return;
        !           116:                        }
        !           117: /*     printf("Found port %s on line %d\n",names[total_entries_found -1],x); */
        !           118:                }
        !           119:        }
        !           120: 
        !           121:        /* if the file exists but is empty, return -1 to the calling process */
        !           122:        if(x == 0){
        !           123:                return(-1);
        !           124:        }               
        !           125: }
        !           126: 
        !           127: 
        !           128: /* print the entries we found to the selection window */
        !           129: 
        !           130: print_selections()
        !           131: {
        !           132:        int r,c,z;                      /* counters */
        !           133: 
        !           134:        z = 0;
        !           135: 
        !           136:        for(r = 0; r < 20 ; r++){       /* 20 is the max # lines we have */
        !           137:                if (z == total_entries_found)   /* if we have no more ports, then abort */
        !           138:                        break;
        !           139: 
        !           140:        /* increment our column by 15 positions. This will cause
        !           141:         * the port names to be printed to line up properly.
        !           142:         */
        !           143: 
        !           144:                for(c = 1; c < 75 ; c+=15){
        !           145:                        mvwaddstr(selwin,r,c, names[z]);
        !           146:                        z++;
        !           147:                        if (z == total_entries_found)   /* break if out of ports */
        !           148:                                break;
        !           149:                }
        !           150:        }
        !           151:        wmove(selwin, 0,1);  /* put our cursor at the first entry on the win */
        !           152: 
        !           153:        return;
        !           154: 
        !           155: }
        !           156: 
        !           157: 
        !           158: /* prompt(): print a message telling the  user what to do */
        !           159: 
        !           160: prompt()
        !           161: {
        !           162:        wclear(promptwin);
        !           163:        wmove(promptwin,0,0);
        !           164:        wprintw(promptwin,"Highlite  the entry  you wish  to work");
        !           165:        wmove(promptwin,1,0);
        !           166:        wprintw(promptwin,"with by  using arrow  keys or  the  vi");
        !           167:        wmove(promptwin,2,0);
        !           168:        wprintw(promptwin,"keys h,j,k &l. <RETURN> selects entry.");
        !           169:        wmove(promptwin,3,0);
        !           170:        wprintw(promptwin,"To exit, press 'q'.");       
        !           171:        wrefresh(promptwin);
        !           172: }

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