BSD 3 development

[unix-history] / usr / src / cmd / uucp / uucp.c

       /*  uucp 2.7  5/24/79  19:40:13  */
#include "uucp.h"
#include "uucpdefs.h"
#include <sys/types.h>
#include <sys/stat.h>

static char SiD[] = "@(#)uucp   2.7";

/*
*      uucp
*/

int Uid;
char *Ropt = " ";
char Path[100], Optns[10], Ename[8];
char Grade = 'n';
int Copy = 1;

#define MAXCOUNT 20     /* maximun number of commands per C. file */

main(argc, argv)
char *argv[];
{
       int ret;
       char *sysfile1, *sysfile2, *cp;
       char file1[MAXFULLNAME], file2[MAXFULLNAME];
       extern char *index();

       uucpname(Myname);
       Optns[0] = '-';
       Ename[0] = Optns[1] = '\0';
       while(argc>1 && argv[1][0] == '-'){
               switch(argv[1][1]){
               case 'c':
                       Copy = 0;
                       strcat(Optns, "c");
                       break;
               case 'd':
                       strcat(Optns, "d");
                       break;
               case 'e':
                       sprintf(Ename, "%.7s", &argv[1][2]);
                       break;
               case 'g':
                       Grade = argv[1][2]; break;
               case 'm':
                       strcat(Optns, "m");
                       break;
               case 'r':
                       Ropt = argv[1];
                       break;
               case 's':
                       Spool = &argv[1][2]; break;
               case 'x':
                       Debug = atoi(&argv[1][2]);
                       if (Debug <= 0)
                               Debug = 1;
                       break;
               default:
                       printf("unknown flag %s\n", argv[1]); break;
               }
               --argc;  argv++;
       }
       DEBUG(4, "\n\n** %s **\n", "START");
       ret = gwd(Wrkdir);
       if (ret != 0) {
               fprintf(stderr, "can't get working directory; will try to continue\n");
               strcpy(Wrkdir, "/UNKNOWN");
       }
       chdir(Spool);

       Uid = getuid();
       ret = guinfo(Uid, User, Path);
       ASSERT(ret == 0, "CAN NOT FIND UID %d\n", Uid);
       DEBUG(4, "UID %d, ", Uid);
       DEBUG(4, "User %s,", User);
       DEBUG(4, "Ename (%s) ", Ename);
       DEBUG(4, "PATH %s\n", Path);
       if (argc < 3) {
               fprintf(stderr, "usage uucp from ... to\n");
               cleanup(0);
       }


       /*  set up "to" system and file names  */
       if ((cp = index(argv[argc - 1], '!')) != NULL) {
               sysfile2 = argv[argc - 1];
               *cp = '\0';
               if (*sysfile2 == '\0')
                       sysfile2 = Myname;
               else
                       sprintf(Rmtname, "%.7s", sysfile2);
               if (versys(sysfile2) != 0) {
                       fprintf(stderr, "bad system name: %s\n", sysfile2);
                       cleanup(0);
               }
               strcpy(file2, cp + 1);
       }
       else {
               sysfile2 = Myname;
               strcpy(file2, argv[argc - 1]);
       }
       if (strlen(sysfile2) > 7)
               *(sysfile2 + 7) = '\0';


       /*  do each from argument  */
       while (argc > 2) {
               if ((cp = index(argv[1], '!')) != NULL) {
                       sysfile1 = argv[1];
                       *cp = '\0';
                       if (strlen(sysfile1) > 7)
                               *(sysfile1 + 7) = '\0';
                       if (*sysfile1 == '\0')
                               sysfile1 = Myname;
                       else
                               sprintf(Rmtname, "%.7s", sysfile1);
                       if (versys(sysfile1) != 0) {
                               fprintf(stderr, "bad system name: %s\n", sysfile1);
                               cleanup(0);
                       }
                       strcpy(file1, cp + 1);
               }
               else {
                       sysfile1 = Myname;
                       strcpy(file1, argv[1]);
               }
               DEBUG(4, "file1 - %s\n", file1);
               copy(sysfile1, file1, sysfile2, file2);
               --argc;
               argv++;
       }

       clscfile();
       if (*Ropt != '-')
               xuucico("");
       cleanup(0);
}

cleanup(code)
int code;
{
       logcls();
       rmlock(NULL);
       exit(code);
}


/***
*      copy(s1, f1, s2, f2)    generate copy files
*      char *s1, *f1, *s2, *f2;
*
*      return codes 0  |  FAIL
*/

copy(s1, f1, s2, f2)
char *s1, *f1, *s2, *f2;
{
       int ret, type, statret;
       struct stat stbuf, stbuf1;
       char dfile[NAMESIZE];
       char file1[MAXFULLNAME], file2[MAXFULLNAME];
       FILE *cfp;
       extern char *index();
       extern FILE *gtcfile();

       type = 0;
       strcpy(file1, f1);
       strcpy(file2, f2);
       if (strcmp(s1, Myname) != SAME)
               type = 1;
       if (strcmp(s2, Myname) != SAME)
               type += 2;
       if (type & 01)
               if ((index(file1, '*') != NULL
                 || index(file1, '?') != NULL
                 || index(file1, '[') != NULL))
                       type = 4;

       switch (type) {
       case 0:
               /* all work here */
               DEBUG(4, "all work here %d\n", type);
               expfile(file1);
               expfile(file2);
               if (stat(file1, &stbuf) != 0) {
                       fprintf(stderr, "can't get file status %s \n copy failed\n",
                         file1);
                       return(0);
               }
               statret = stat(file2, &stbuf1);
               if (statret == 0
                 && stbuf.st_ino == stbuf1.st_ino
                 && stbuf.st_dev == stbuf1.st_dev) {
                       fprintf(stderr, "%s %s - same file; can't copy\n", file1, file2);
                       return(0);
               }
               if (chkpth(User, "", file1) != 0
                 || chkpth(User, "", file2) != 0) {
                       fprintf(stderr, "permission denied\n");
                       cleanup(1);
               }
               if ((stbuf.st_mode & ANYREAD) == 0) {
                       fprintf(stderr, "can't read file (%s) mode (%o)\n",
                         file1, stbuf.st_mode);
                       return(FAIL);
               }
               if (statret == 0 && (stbuf1.st_mode & ANYWRITE) == 0) {
                       fprintf(stderr, "can't write file (%s) mode (%o)\n",
                         file2, stbuf.st_mode);
                       return(FAIL);
               }
               xcp(file1, file2);
               logent("WORK HERE", "DONE");
               return(0);
       case 1:
               /* receive file */
               DEBUG(4, "receive file - %d\n", type);
               if (file1[0] != '~')
                       expfile(file1);
               expfile(file2);
               if (chkpth(User, "", file2) != 0) {
                       fprintf(stderr, "permission denied\n");
                       return(FAIL);
               }
               if (Ename[0] != '\0') {
                       /* execute uux - remote uucp */
                       xuux(Ename, s1, file1, s2, file2);
                       return(0);
               }

               cfp = gtcfile(s1);
               fprintf(cfp, "R %s %s %s %s\n", file1, file2, User, Optns);
               break;
       case 2:
               /* send file */
               expfile(file1);
               if (file2[0] != '~')
                       expfile(file2);
               DEBUG(4, "send file - %d\n", type);

               if (chkpth(User, "", file1) != 0) {
                       fprintf(stderr, "permission denied %s\n", file1);
                       return(FAIL);
               }
               if (stat(file1, &stbuf) != 0) {
                       fprintf(stderr, "can't get status for file %s\n", file1);
                       return(FAIL);
               }
               if ((stbuf.st_mode & S_IFMT) == S_IFDIR) {
                       fprintf(stderr, "directory name illegal - %s\n",
                         file1);
                       return(FAIL);
               }
               if ((stbuf.st_mode & ANYREAD) == 0) {
                       fprintf(stderr, "can't read file (%s) mode (%o)\n",
                         file1, stbuf.st_mode);
                       return(FAIL);
               }
               if (Ename[0] != '\0') {
                       /* execute uux - remote uucp */
                       xuux(Ename, s1, file1, s2, file2);
                       return(0);
               }
               if (Copy) {
                       gename(DATAPRE, s2, Grade, dfile);
                       if (xcp(file1, dfile) != 0) {
                               fprintf(stderr, "can't copy %s\n", file1);
                               return(FAIL);
                       }
                       chmod(dfile, 0666);
               }
               else {
                       /* make a dummy D. name */
                       /* cntrl.c knows names < 6 chars are dummy D. files */
                       strcpy(dfile, "D.0");
               }
               cfp = gtcfile(s2);
               fprintf(cfp, "S %s %s %s %s %s %o\n", file1, file2,
                       User, Optns, dfile, stbuf.st_mode & 0777);
               break;
       case 3:
       case 4:
               /*  send uucp command for execution on s1  */
               DEBUG(4, "send uucp command - %d\n", type);
               if (strcmp(s2,  Myname) == SAME) {
                       expfile(file2);
                       if (chkpth(User, "", file2) != 0) {
                               fprintf(stderr, "permission denied\n");
                               return(FAIL);
                       }
               }
               if (Ename[0] != '\0') {
                       /* execute uux - remote uucp */
                       xuux(Ename, s1, file1, s2, file2);
                       return(0);
               }
               cfp = gtcfile(s1);
               fprintf(cfp, "X %s %s!%s\n", file1, s2, file2);
               break;
       }
       return(0);
}

/***
*      xuux(ename, s1, s2, f1, f2)     execute uux for remote uucp
*
*      return code - none
*/

xuux(ename, s1, f1, s2, f2)
char *ename, *s1, *s2, *f1, *f2;
{
       char cmd[200];

       DEBUG(4, "Ropt(%s) ", Ropt);
       DEBUG(4, "ename(%s) ", ename);
       DEBUG(4, "s1(%s) ", s1);
       DEBUG(4, "f1(%s) ", f1);
       DEBUG(4, "s2(%s) ", s2);
       DEBUG(4, "f2(%s)\n", f2);
       sprintf(cmd, "uux %s  %s!uucp %s!%s \\(%s!%s\\)",
         Ropt, ename, s1, f1, s2, f2);
       DEBUG(4, "cmd (%s)\n", cmd);
       system(cmd);
       return;
}

FILE *Cfp = NULL;
char Cfile[NAMESIZE];

/***
*      gtcfile(sys)    - get a Cfile descriptor
*
*      return an open file descriptor
*/

FILE *
gtcfile(sys)
char *sys;
{
       static char presys[8] = "";
       static int cmdcount = 0;

       if (strcmp(presys, sys) != SAME  /* this is !SAME on first call */
         || ++cmdcount > MAXCOUNT) {

               cmdcount = 1;
               if (presys[0] != '\0') {
                       clscfile();
               }
               gename(CMDPRE, sys, Grade, Cfile);
               Cfp = fopen(Cfile, "w");
               ASSERT(Cfp != NULL, "CAN'T OPEN %s", Cfile);
               chmod(0200, Cfile);
               strcpy(presys, sys);
       }
       return(Cfp);
}

/***
*      clscfile()      - close cfile
*
*      return code - none
*/

clscfile()
{
       if (Cfp == NULL)
               return;
       fclose(Cfp);
       chmod(0666, Cfile);
       logent(Cfile, "QUE'D");
       Cfp = NULL;
       return;
}