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Annotation of 41BSD/cmd/berknet/header.c, revision 1.1.1.1

1.1       root        1: /*
                      2:        header.c
                      3: 
                      4:        these routines provide a way of transferring the information
                      5:        in the "header" structure between machines.
                      6:        Programs calling these routines either read or write
                      7:        their information into the header structure.
                      8:        These procedures format the info in a way that is acceptable.
                      9:        Called by net.c, netdaemon.c, and netq.c.
                     10: */
                     11: /*
                     12:        protocol that is sent (in ASCII):
                     13:        code, remote mach, local mach, version stamp (2), remote login name,
                     14:        password, -i, -o, -r files,
                     15:        local login name, terminal, flag, utmp tty login time,
                     16:        cc jobno(variable parameter list), current time,
                     17:        command '\n' real command '\n'
                     18:        any data
                     19:        
                     20:        changes:
                     21:        1) remove header
                     22:        3) use ascii length instead of 4 bytes
                     23:        4) encrypt the login name, command, and part of data as well
                     24: */
                     25: # include "defs.h"
                     26: 
                     27: writehdfd(phd,fd)
                     28: register struct header *phd;
                     29: FILE *fd;
                     30: {
                     31:        char *genparmlist();
                     32:        char cflag = 'a';
                     33: 
                     34:        /* cflag is initially 'a'. Add the flags as needed. */
                     35:        if(phd->hd_fnonotify)cflag += F_NONOTIFY;
                     36:        if(phd->hd_fquiet)cflag += F_QUIET;
                     37: 
                     38:        fprintf(fd,
                     39:        "%c :%c :%c :%c :%c :%s :%s :%s :%s :%s :%s :%s :%c :%lo :%d%s :%ld :",
                     40:                phd->hd_code,phd->hd_mchto,phd->hd_mchfrom,
                     41:                phd->hd_vmajor+'a',phd->hd_vminor+'a',phd->hd_snto,
                     42:                phd->hd_spasswd,phd->hd_sinfile,phd->hd_soutfile,
                     43:                phd->hd_srespfile,
                     44:                phd->hd_snfrom,phd->hd_sttyname,cflag,phd->hd_lttytime,
                     45:                phd->hd_ijobno,genparmlist(phd),phd->hd_ltimesent-TIMEBASE);
                     46:        fputs(phd->hd_scmdact,fd);
                     47:        putc('\n',fd);
                     48:        fputs(phd->hd_scmdvirt,fd);
                     49:        putc('\n',fd);
                     50:        /* not used, but a good idea */
                     51:        sprintf(phd->hd_addrfrom,"%c:%s",phd->hd_mchfrom,phd->hd_snfrom);
                     52:        sprintf(phd->hd_addrto,  "%c:%s",phd->hd_mchto,  phd->hd_snto);
                     53: }
                     54: /*
                     55:        print out debugging values of a header structure
                     56: */
                     57: printhd(phd)
                     58: register struct header *phd;
                     59: {
                     60:        if(debugflg){
                     61:                printf("To %s From %s quiet=%c nonotify=%c\n",
                     62:                        phd->hd_addrto, phd->hd_addrfrom, 
                     63:                        chfromf(phd->hd_fquiet), chfromf(phd->hd_fnonotify));
                     64:                /* don't print out for security reasons
                     65:                printf("Password %s\n",phd->hd_spasswd);
                     66:                */
                     67:                printf("Code '%c' Version (%d,%d) Infile '%s'\n",
                     68:                        phd->hd_code, phd->hd_vmajor,phd->hd_vminor,
                     69:                        phd->hd_sinfile);
                     70:                printf("Outfile '%s' Respfile '%s' TTYName '%s'\n",
                     71:                        phd->hd_soutfile,phd->hd_srespfile, phd->hd_sttyname);
                     72:                printf("Jobno %d TimeSent %s", phd->hd_ijobno,
                     73:                        ctime(&phd->hd_ltimesent));
                     74:                if(phd->hd_lttytime != 0)
                     75:                        printf("TTYTime %s", ctime(&phd->hd_lttytime));
                     76:                printf("Virtual Command \"%s\"\n", phd->hd_scmdvirt);
                     77:                printf("Actual Command \"%s\"\n", phd->hd_scmdact);
                     78:        }
                     79: }
                     80: /*
                     81:        generate a variable parameter list
                     82:        the format is:
                     83:                (name value, name value, ..., name value)
                     84:        where names are unquoted single words and values
                     85:        are unquoted if a single alphanumeric word, and are
                     86:        surrounded by {} otherwise. \ quotes { and }.
                     87:        the values are escape-processed, e.g. \n becomes 012.
                     88:        this function returns such a list.
                     89:        Returns the null parm list if nothing to give, i.e. "()" 
                     90: 
                     91:        Should also default so single keywords can have on/off
                     92:        states, and so do not require a value.
                     93: 
                     94:        Things this variable protocol should specify:
                     95:                EPASSWD         encrypted passwd
                     96:                FILEMODE        file mode
                     97:                FROMUID         from users' uid
                     98:                FROMGID         from users' gid
                     99:                COMPRESS        use colin's compression
                    100:                ACCTPAIR        handle acct pairs
                    101:                MESSAGEID       unique number identifying this request.
                    102:                FILENAME        when omitted by netcp, will use FILENAME ext.
                    103:                REPLYTO         the person the response should be sent to
                    104: 
                    105:                 --- possibly ---
                    106:                MACHINE2        a second machine (e.g. 3way netcp)
                    107:                LOGIN2          a second login name
                    108:                PASSWD2         a second passwd
                    109: 
                    110: */
                    111: static char *genparmlist(phd)
                    112: register struct header *phd;
                    113: {
                    114:        static char returnstr[PARMLIST];
                    115:        strcpy(returnstr,"()");
                    116:        return(returnstr);
                    117: }

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