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Annotation of coherent/b/conf/convert/lsys/cvlsys.c, revision 1.1

1.1     ! root        1: /* cvlsys.c: convert the information in L.sys and Permissions to
        !             2:  * Taylor uucp sys file format. This will also peek into L-devices
        !             3:  * if we find an ACU entry in our L.sys entry.
        !             4:  */
        !             5: 
        !             6: #include <stdio.h>
        !             7: #include <string.h>
        !             8: #include <ctype.h>
        !             9: 
        !            10: #define PERMISSIONS    "/usr/lib/uucp/Permissions"
        !            11: #define LSYS           "/usr/lib/uucp/L.sys"
        !            12: #define        TSYS            "/usr/lib/uucp/sys"
        !            13: 
        !            14: 
        !            15: #define MAX            175
        !            16: #define BEHEMOTH       1024
        !            17: 
        !            18: /* this is what we need to parse from our L.sys entry */
        !            19: 
        !            20: char system[9];                        /* name of system to call/be called by */
        !            21: char calltime[45];             /* valid time(s) to call */
        !            22: char device[10];               /* device to call on */
        !            23: char speed[7];                 /* baud rate */
        !            24: char telno[51];                        /* phone number */
        !            25: char chat_script[128];         /* chat script to log in with */
        !            26: char acudev[15];               /* store ACU device from L-devices*/
        !            27: char lsys[254];                        /* line read from L.sys */
        !            28: 
        !            29: /* stuff from Permissions file: */
        !            30: 
        !            31: char   request[4];             /* REQUEST files from Permissions */
        !            32: char   transfer[4];            /* SEND files from Permissions */
        !            33: char   readpath[MAX];          /* READ from Permissions */
        !            34: char   no_readpath[MAX];       /* NOREAD from Permissions */
        !            35: char   writepath[MAX];         /* WRITE from Permissions */
        !            36: char   no_writepath[MAX];      /* NOWRITE from Permissions */
        !            37: char   commands[MAX];          /* COMMANDS from Permissions */
        !            38: char   myname[10];             /* MYNAME from Permissions */
        !            39: 
        !            40: char   parseline[BEHEMOTH];    /* this will be our concatenated Permissions */
        !            41: 
        !            42: int getrest();                 /* complete concatenating Permissions string */
        !            43: int parseperm();               /* parse a field out of Permissions string */
        !            44: int cvnowritwe();              /* convert NOREAD and NOWRITE to useable format */
        !            45: int lsysentry();               /* read entry from L.sys file */
        !            46: int permentry();               /* read entry from Permissions */
        !            47: int parselsys();               /* parse L.sys entry */
        !            48: int parseperm();               /* parse Permissions entry */
        !            49: int getACU();                  /* get ACU device from L-devices */
        !            50: int readperm();                /* read Permissions file */
        !            51: int printsys();                        /* write sys file entry */
        !            52: 
        !            53: 
        !            54: main()
        !            55: {
        !            56:        FILE *infp;
        !            57: 
        !            58:        if((infp = fopen(LSYS,"r")) == NULL){
        !            59:                printf("Error opening %s for input.\n",LSYS);
        !            60:                exit(1);
        !            61:        }
        !            62: 
        !            63:        if(getACU()){
        !            64:                printf("failed to find ACU device!\n");
        !            65:                exit(1);
        !            66:        }
        !            67: 
        !            68:        while(lsysentry(infp)){
        !            69:                if(lsys[0] != '#'){     /* we don't want to process a comment */
        !            70:                        readperm(system);       /* get Permissions information */
        !            71:                        printsys();             /* print sys file entry */
        !            72:                        lsys[0] = '\0';         /* the terminator... he's back */
        !            73:                }else{
        !            74:                        printf("Skipping comment line in L.sys\n");
        !            75:                }
        !            76:        }
        !            77: 
        !            78:        fclose(infp);
        !            79: }
        !            80: 
        !            81: 
        !            82: /* lsysentry(): read a line from L.sys and pass it on to be parsed
        !            83:  *     into sys entries for use by Taylor uucp.
        !            84:  */
        !            85: 
        !            86: lsysentry(infp)
        !            87: FILE *infp;
        !            88: {
        !            89: 
        !            90:        char next_line[80];     /* dummy for possible line continuation */
        !            91: 
        !            92:        if(fgets(lsys,sizeof(lsys),infp) == NULL){
        !            93:                return(0); /* probably hit EOF */
        !            94:        }
        !            95: #ifdef DEBUG
        !            96:        printf("got %s",lsys);
        !            97: #endif
        !            98:        if(lsys[0] == '#'){     /* skip comments */
        !            99:                return(1);
        !           100:        }
        !           101: 
        !           102: 
        !           103:        /* check for line continuation. we will read the next line and
        !           104:         * concatenate it to the just read lsys line.
        !           105:         */
        !           106: 
        !           107:        if(lsys[strlen(lsys) -2] == 92){        /* 92 = \ */
        !           108:                if(fgets(next_line, sizeof(next_line),infp) == NULL){
        !           109:                        printf("Error reading continued line in %s.\n",LSYS);
        !           110:                        exit(1);
        !           111:                }else{
        !           112:        /* the next to last character should be the line continuation
        !           113:         * character followed by a newline. We'll just terminate our
        !           114:         * our string where we expect the continuation to be.
        !           115:         */
        !           116:                        lsys[strlen(lsys) -2] = '\0';
        !           117:                        strcat(lsys,next_line);
        !           118:                }
        !           119: #ifdef DEBUG
        !           120:                printf("Line continuation detected. Just added:\n");
        !           121:                printf("%s",next_line);
        !           122:                printf("%s",lsys);
        !           123: #endif
        !           124:        }
        !           125: 
        !           126:        return(parselsys(lsys));
        !           127: }
        !           128: 
        !           129: 
        !           130: /* parselsys(): parses the lsys line just read into the fields needed
        !           131:  *     to build a Taylor sys entry.
        !           132:  */
        !           133: 
        !           134: parselsys(lsys)
        !           135: char *lsys;
        !           136: {
        !           137:        char *ptrlsys;
        !           138:        char *ptrlentry;
        !           139: 
        !           140:        strcpy(system,"");
        !           141:        strcpy(calltime,"");
        !           142:        strcpy(device,"");
        !           143:        strcpy(speed,"");
        !           144:        strcpy(telno,"");
        !           145:        strcpy(chat_script,"");
        !           146: 
        !           147:        ptrlsys = lsys;
        !           148: 
        !           149:        /* parse out system name */
        !           150:        ptrlentry = system;
        !           151:        *ptrlentry = '\0';
        !           152:        while(!isspace(*ptrlsys))
        !           153:                *ptrlentry++ = *ptrlsys++;
        !           154:        *ptrlentry = '\0';
        !           155: 
        !           156:        printf("Converting L.sys and Permissions entries for system %s.\n",
        !           157:                system);
        !           158: 
        !           159:        while(isspace(*ptrlsys++))      /* skip whitespace */
        !           160:                ;
        !           161:        
        !           162:        /* get calltime */
        !           163:        ptrlentry = calltime;
        !           164:        *ptrlentry = '\0';
        !           165: 
        !           166:        ptrlsys--;
        !           167: 
        !           168:        while(!isspace(*ptrlsys)){
        !           169:                *ptrlentry++ = *ptrlsys++;
        !           170:        }
        !           171:        *ptrlentry = '\0';
        !           172: 
        !           173:        while(isspace(*ptrlsys++))      /* skip whitespace */
        !           174:                ;
        !           175: 
        !           176:        ptrlsys--;
        !           177: 
        !           178:        /* get our device */
        !           179:        ptrlentry = device;
        !           180:        *ptrlentry = '\0';
        !           181:        while(!isspace(*ptrlsys))
        !           182:                *ptrlentry++ = *ptrlsys++;
        !           183:        *ptrlentry = '\0';
        !           184: 
        !           185:        /* if this is a modem, which would be indicated by ACU in this field,
        !           186:         * then copy the name of the ACU device previously fetched into device
        !           187:         */
        !           188: 
        !           189:        if(device[0] == 'A'){
        !           190:                if(0 == strcmp(acudev,NULL)){
        !           191:                        printf("FATAL Configuration error. No ACU device was.\n");
        !           192:                        printf("found in L-devices, yet you have defined an\n");
        !           193:                        printf("L.sys entry with an ACU device. Aborting...\n");
        !           194:                        exit(1);
        !           195:                }
        !           196:                strcpy(device, acudev);
        !           197:        }
        !           198: 
        !           199:                        
        !           200:        while(isspace(*ptrlsys++))      /* skip whitespace */
        !           201:                ;
        !           202: 
        !           203: 
        !           204:        ptrlsys--;
        !           205: 
        !           206:        /* get the speed (baud rate) */
        !           207:        ptrlentry = speed;
        !           208:        *ptrlentry = '\0';
        !           209:        while(!isspace(*ptrlsys))
        !           210:                *ptrlentry++ = *ptrlsys++;
        !           211:        *ptrlentry = '\0';
        !           212: 
        !           213:        while(isspace(*ptrlsys++))      /* skip whitespace */
        !           214:                ;
        !           215: 
        !           216: 
        !           217:        ptrlsys--;
        !           218: 
        !           219:        /* get telephone number */
        !           220:        ptrlentry = telno;
        !           221:        while(!isspace(*ptrlsys))
        !           222:                *ptrlentry++ = *ptrlsys++;
        !           223:        *ptrlentry = '\0';
        !           224: 
        !           225:        /* if no telephone number is found, then make sure the string is NULL */
        !           226:        if(strcmp(telno,"\"\"") == 0)
        !           227:                strcpy(telno,"");
        !           228: 
        !           229:        while(isspace(*ptrlsys++))      /* skip whitespace */
        !           230:                ;
        !           231: 
        !           232:        /* the rest is our chat script. We copy up to the newline. */
        !           233:        ptrlentry = chat_script;
        !           234:        *ptrlentry = '\0';
        !           235:        ptrlsys--;
        !           236:        while(*ptrlsys != '\n'){
        !           237:                *ptrlentry++ = *ptrlsys++;
        !           238:        }
        !           239:        *ptrlentry = '\0';
        !           240: 
        !           241: #ifdef DEBUG
        !           242:        printf("system %s\n",system);
        !           243:        printf("time %s\n",calltime);
        !           244:        printf("port %s\n",device);
        !           245:        printf("baud %s\n",speed);
        !           246:        printf("phone %s\n",telno);
        !           247:        printf("chat {%s}\n", chat_script);
        !           248: #endif
        !           249: 
        !           250:        return(1);
        !           251: }
        !           252: 
        !           253: 
        !           254: 
        !           255: /* printsys(): print out system information to Taylor sys file */
        !           256: 
        !           257: printsys()
        !           258: {
        !           259: 
        !           260:        FILE *outfp;
        !           261: 
        !           262:        if((outfp = fopen(TSYS,"a")) == NULL){
        !           263:                printf("Could not open %s for writing!\n",TSYS);
        !           264:                exit(1);
        !           265:        }
        !           266: 
        !           267:        fprintf(outfp,"system %s\n",system);
        !           268:        fprintf(outfp,"time %s\n",calltime);
        !           269:        fprintf(outfp,"baud %s\n",speed);
        !           270:        fprintf(outfp,"port %s\n",device);
        !           271:        
        !           272:        if(telno[0] != '\0')
        !           273:                fprintf(outfp,"phone %s\n",telno);
        !           274: 
        !           275:        fprintf(outfp,"chat %s\n",chat_script);
        !           276:        fprintf(outfp,"protocol g\nprotocol-parameter g window 3\n");
        !           277:        fprintf(outfp,"protocol-parameter g packet-size 64\n");
        !           278: 
        !           279:        if(myname[0] != '\0')
        !           280:                fprintf(outfp,"myname %s\n", myname);
        !           281: 
        !           282:        if(request[0] != '\0')
        !           283:                fprintf(outfp,"request %s\n",request);
        !           284: 
        !           285:        if(transfer[0] != '\0')
        !           286:                fprintf(outfp,"transfer %s\n",transfer);
        !           287: 
        !           288:        if(readpath[0] != '\0')
        !           289:                fprintf(outfp,"remote-send %s %s\n",readpath, no_readpath);
        !           290: 
        !           291:        if(writepath[0] != '\0')
        !           292:                fprintf(outfp,"remote-receive %s %s\n",writepath, no_writepath);
        !           293: 
        !           294:        if(commands[0] != '\0')
        !           295:                fprintf(outfp,"commands %s\n",commands);
        !           296: 
        !           297:        fprintf(outfp,"\n");
        !           298:        fclose(outfp);
        !           299: }

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