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1.1 root 1: #ifndef lint
2: static char sccsid[] = "@(#)uusend.c 5.1 (Berkeley) 7/2/83";
3: #endif
4:
5: /*
6: * uusend: primitive operation to allow uucp like copy of binary files
7: * but handle indirection over systems.
8: *
9: * usage: uusend [-r] [-m ooo] localfile sysname1!sysname2!...!destfile
10: * uusend [-r] [-m ooo] - sysname1!sysname2!...!destfile
11: *
12: * Author: Mark Horton, May 1980.
13: *
14: * "-r" switch added. Has same effect as "-r" in uux. 11/82 CCW
15: *
16: * Error recovery (a la uucp) added & ifdefs for ruusend (as in rmail).
17: * Checks for illegal access to /usr/lib/uucp.
18: * February 1983 Christopher Woodbury
19: * Fixed mode set[ug]id loophole. 4/8/83 CCW
20: *
21: * Add '-f' to make uusend syntax more similar to UUCP. "destname"
22: * can now be a directory. June 1983 CCW
23: */
24:
25: #include <stdio.h>
26: #include <pwd.h>
27: #include <sys/types.h>
28: #include <sys/stat.h>
29:
30: #define RECOVER
31:
32: FILE *in, *out;
33: FILE *dout;
34:
35: FILE *popen();
36: char *index(), *strcpy();
37:
38: #ifdef RUUSEND
39: int rsend;
40: #endif
41: int mode = -1; /* mode to chmod new file to */
42: char *nextsys; /* next system in the chain */
43: char dnbuf[200]; /* buffer for result of ~user/file */
44: char cmdbuf[256]; /* buffer to build uux command in */
45: char *rflg = ""; /* default value of rflg ccw -- 1 Nov '82 */
46:
47: struct passwd *user; /* entry in /etc/passwd for ~user */
48: struct passwd *getpwnam();
49: struct stat stbuf;
50:
51: char *excl; /* location of first ! in destname */
52: char *sl; /* location of first / in destname */
53: char *sourcename; /* argv[1] */
54: char *destname; /* argv[2] */
55: char *UULIB = "/usr/lib/uucp"; /* UUCP lib directory */
56:
57: #ifdef RECOVER
58: char *UUPUB = "/usr/spool/uucppublic/"; /* public UUCP directory */
59: char *filename; /* file name from end of destname */
60: char *getfname(); /* routine to get filename from destname */
61: int fflg;
62: char f[100]; /* name of default output file */
63: #else
64: char *f = ""; /* so we waste a little space */
65: #endif
66:
67: main(argc, argv)
68: int argc;
69: char **argv;
70: {
71: register int c;
72: long count = 0;
73:
74: #ifdef DEBUG
75: long t;
76: dout = fopen(DEBUG, "a");
77: if (dout == NULL) {
78: printf("Cannot append to %s\n", DEBUG);
79: exit(1);
80: }
81: freopen(DEBUG, "a", stdout);
82: /*xxx
83: freopen(DEBUG, "a", stderr);
84: xxx*/
85: chmod(DEBUG, 0666);
86: fprintf(dout, "\nuusend run: ");
87: for (c=0; c<argc; c++)
88: fprintf(dout, "%s ", argv[c]);
89: time(&t);
90: fprintf(dout, "%s", ctime(&t));
91: #endif
92:
93: #ifdef RUUSEND
94: if(argv[0][0] == 'r')
95: rsend++;
96: #endif
97: while (argc > 1 && argv[1][0] == '-' && argv[1][1]) {
98: switch(argv[1][1]) {
99: case 'm':
100: sscanf(argv[2], "%o", &mode);
101: mode &= 0777; /* fix set[ug]id loophole */
102: argc--; argv++;
103: break;
104: case 'r': /* -r flag for uux */
105: rflg = "-r ";
106: break;
107: #ifdef RECOVER
108: case 'f':
109: fflg++;
110: strcpy(f, argv[1]);
111: break;
112: #endif
113: default:
114: fprintf(stderr, "Bad flag: %s\n", argv[1]);
115: break;
116: }
117: argc--; argv++;
118: }
119:
120: if (argc != 3) {
121: fprintf(stderr, "Usage: uusend [-m ooo] [-r] -/file sys!sys!..!rfile\n");
122: exit(1);
123: }
124:
125: sourcename = argv[1];
126: destname = argv[2];
127:
128: if (sourcename[0] == '-')
129: in = stdin;
130: else {
131: #ifdef RUUSEND
132: if (rsend) {
133: fprintf(stderr, "illegal input\n");
134: exit(2);
135: }
136: #endif
137: in = fopen(sourcename, "r");
138: if (in == NULL) {
139: perror(argv[1]);
140: exit(2);
141: }
142: if (!fflg || f[2] == '\0') {
143: strcpy(f, "-f");
144: strcat(f, getfname(sourcename));
145: fflg++;
146: }
147: }
148:
149: excl = index(destname, '!');
150: if (excl) {
151: /*
152: * destname is on a remote system.
153: */
154: nextsys = destname;
155: *excl++ = 0;
156: destname = excl;
157: if (mode < 0) {
158: fstat(fileno(in), &stbuf);
159: mode = stbuf.st_mode & 0777;
160: }
161: #ifdef RUUSEND
162: sprintf(cmdbuf,"uux %s- \"%s!ruusend %s -m %o - (%s)\"",
163: #else
164: sprintf(cmdbuf, "uux %s- \"%s!uusend %s -m %o - (%s)\"",
165: #endif
166: rflg, nextsys, f, mode, destname);
167: #ifdef DEBUG
168: fprintf(dout, "remote: nextsys='%s', destname='%s', cmd='%s'\n", nextsys, destname, cmdbuf);
169: #endif
170: out = popen(cmdbuf, "w");
171: } else {
172: /*
173: * destname is local.
174: */
175: if (destname[0] == '~') {
176: #ifdef DEBUG
177: fprintf(dout, "before ~: '%s'\n", destname);
178: fflush(dout);
179: #endif
180: sl = index(destname, '/');
181: #ifdef RECOVER
182: if (sl == NULL && !fflg) {
183: fprintf(stderr, "Illegal ~user\n");
184: exit(3);
185: }
186: for (sl = destname; *sl != '\0'; sl++)
187: ; /* boy, is this a hack! */
188: #else
189: if (sl == NULL) {
190: fprintf(stderr, "Illegal ~user\n");
191: exit(3);
192: }
193: *sl++ = 0;
194: #endif
195: user = getpwnam(destname+1);
196: if (user == NULL) {
197: fprintf(stderr, "No such user as %s\n",
198: destname);
199: #ifdef RECOVER
200: if ((filename =getfname(sl)) == NULL &&
201: !fflg)
202: exit(4);
203: strcpy(dnbuf, UUPUB);
204: if (fflg)
205: strcat(dnbuf, &f[2]);
206: else
207: strcat(dnbuf, filename);
208: }
209: else {
210: strcpy(dnbuf, user->pw_dir);
211: strcat(dnbuf, "/");
212: strcat(dnbuf, sl);
213: }
214: #else
215: exit(4);
216: }
217: strcpy(dnbuf, user->pw_dir);
218: strcat(dnbuf, "/");
219: strcat(dnbuf, sl);
220: #endif
221: destname = dnbuf;
222: }
223: #ifdef RECOVER
224: else
225: destname = strcpy(dnbuf, destname);
226: #endif
227: if(strncmp(UULIB, destname, strlen(UULIB)) == 0) {
228: fprintf(stderr, "illegal file: %s", destname);
229: exit(4);
230: }
231: #ifdef RECOVER
232: if (stat(destname, &stbuf) == 0 &&
233: (stbuf.st_mode & S_IFMT) == S_IFDIR &&
234: fflg) {
235: strcat(dnbuf, "/");
236: strcat(dnbuf, &f[2]);
237: }
238: #endif
239: out = fopen(destname, "w");
240: #ifdef DEBUG
241: fprintf(dout, "local, file='%s'\n", destname);
242: #endif
243: if (out == NULL) {
244: perror(destname);
245: #ifdef RECOVER
246: if (strncmp(destname,UUPUB,strlen(UUPUB)) == 0)
247: exit(5); /* forget it! */
248: filename = getfname(destname);
249: if (destname == dnbuf) /* cmdbuf is scratch */
250: filename = strcpy(cmdbuf, filename);
251: destname = strcpy(dnbuf, UUPUB);
252: if (user != NULL) {
253: strcat(destname, user->pw_name);
254: if (stat(destname, &stbuf) == -1) {
255: mkdir(destname);
256: chmod(destname, 0777);
257: }
258: strcat(destname, "/");
259: }
260: #ifdef RECOVER
261: if (fflg)
262: strcat(destname, &f[2]);
263: else
264: strcat(destname, filename);
265: #endif
266: if ((out = fopen(destname, "w")) == NULL)
267: exit(5); /* all for naught! */
268: #else
269: exit(5);
270: #endif
271: }
272: if (mode > 0)
273: chmod(destname, mode); /* don't bother to check it */
274: }
275:
276: /*
277: * Now, in any case, copy from in to out.
278: */
279:
280: while ((c=getc(in)) != EOF) {
281: putc(c, out);
282: count++;
283: }
284: #ifdef DEBUG
285: fprintf(dout, "count %ld bytes\n", count);
286: fclose(dout);
287: #endif
288:
289: fclose(in);
290: fclose(out); /* really should pclose in that case */
291: exit(0);
292: }
293:
294: /*
295: * Return the ptr in sp at which the character c appears;
296: * NULL if not found. Included so I don't have to fight the
297: * index/strchr battle.
298: */
299:
300: #define NULL 0
301:
302: char *
303: index(sp, c)
304: register char *sp, c;
305: {
306: do {
307: if (*sp == c)
308: return(sp);
309: } while (*sp++);
310: return(NULL);
311: }
312:
313: #ifdef RECOVER
314: char *
315: getfname(p)
316: register char *p;
317: {
318: register char *s;
319: s = p;
320: while (*p != '\0')
321: p++;
322: if (p == s)
323: return (NULL);
324: for (;p != s; p--)
325: if (*p == '/') {
326: p++;
327: break;
328: }
329: return (p);
330: }
331:
332: mkdir(dirname)
333: char *dirname;
334: {
335: register int pid;
336: int retcode, status;
337: switch ((pid = fork())) {
338: case -1: /* error */
339: return (-1);
340: break;
341: case 0: /* child */
342: umask(0);
343: execl("/bin/mkdir", "mkdir", dirname, 0);
344: exit(1);
345: break;
346: default: /* parent */
347: while ((retcode=wait(&status)) != pid && retcode != -1)
348: ;
349: if (retcode == -1)
350: return (-1);
351: else
352: return (status);
353: break;
354: }
355: }
356: #endif
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