$Header: uuXXcode,v 1.4 1993/05/05 03:47:20 layer Exp $ Submitted by: Mark Horton <cbosgd!mark> Mod.sources: Volume 7, Issue 15 Archive-name: uuencode [ These programs have been part of the Berkeley distributions for quite some time. Although they have always been in the public domain, they have not always been readily available. I wrote the Makefile, and repacked what Mark sent me to include it. --r$ ] #!/bin/sh # This is a shell archive. Remove anything before this line, # then unpack it by saving it in a file and typing "sh file". # Exit status; set to 1 on "wc" errors or if would overwrite. STATUS=0 # Contents: Makefile uuencode.1 uudecode.c uuencode.c echo x - Makefile if test -f Makefile ; then echo Makefile exists, putting output in $$Makefile OUT=$$Makefile STATUS=1 else OUT=Makefile fi sed 's/^XX//' > $OUT <<'@//E*O*F Makefile//' XXCFLAGS = -O XXall: uuencode uudecode XXinstall: all XX cp uuencode uudecode /usr/bin XX strip /usr/bin/uuencode XX strip /usr/bin/uudecode XX cp uuencode.1 /usr/man/man1/uuencode.1 XXuuencode: uuencode.c ; cc -o $@ $(CFLAGS) $? XXuudecode: uudecode.c ; cc -o $@ $(CFLAGS) $? @//E*O*F Makefile// chmod u=rw,g=rw,o=rw $OUT echo x - uuencode.1 if test -f uuencode.1 ; then echo uuencode.1 exists, putting output in $$uuencode.1 OUT=$$uuencode.1 STATUS=1 else OUT=uuencode.1 fi sed 's/^XX//' > $OUT <<'@//E*O*F uuencode.1//' XX.TH UUENCODE 1 "1 June 1980" XX.UC 4 XX.SH NAME XXuuencode,uudecode \- encode/decode a binary file for transmission via mail XX.SH SYNOPSIS XX.B uuencode XX[ source ] remotedest | XX.B mail XXsys1!sys2!..!decode XX.br XX.B uudecode XX[ file ] XX.SH DESCRIPTION XX.I Uuencode XXand XX.I uudecode XXare used to send a binary file via uucp (or other) mail. XXThis combination can be used over indirect mail links XXeven when XX.IR uusend (1C) XXis not available. XX.PP XX.I Uuencode XXtakes the named source file (default standard input) and XXproduces an encoded version on the standard output. XXThe encoding uses only printing ASCII characters, XXand includes the mode of the file and the XX.I remotedest XXfor recreation on the remote system. XX.PP XX.I Uudecode XXreads an encoded file, XXstrips off any leading and trailing lines added by mailers, XXand recreates the original file with the specified mode and name. XX.PP XXThe intent is that all mail to the user ``decode'' should be filtered XXthrough the uudecode program. This way the file is created automatically XXwithout human intervention. XXThis is possible on the uucp network by either using XX.I sendmail XXor by making XX.I rmail XXbe a link to XX.I Mail XXinstead of XX.I mail. XXIn each case, an alias must be created in a master file to get XXthe automatic invocation of uudecode. XX.PP XXIf these facilities are not available, the file can be sent to a XXuser on the remote machine who can uudecode it manually. XX.PP XXThe encode file has an ordinary text form and can be edited XXby any text editor to change the mode or remote name. XX.SH SEE\ ALSO XXuuencode(5), uusend(1C), uucp(1C), uux(1C), mail(1) XX.SH AUTHOR XXMark Horton XX.SH BUGS XXThe file is expanded by 35% (3 bytes become 4 plus control information) XXcausing it to take longer to transmit. XX.PP XXThe user on the remote system who is invoking XX.I uudecode XX(often XX.I uucp) XXmust have write permission on the specified file. @//E*O*F uuencode.1// chmod u=rw,g=r,o=r $OUT echo x - uudecode.c if test -f uudecode.c ; then echo uudecode.c exists, putting output in $$uudecode.c OUT=$$uudecode.c STATUS=1 else OUT=uudecode.c fi sed 's/^XX//' > $OUT <<'@//E*O*F uudecode.c//' XX/* XX * uudecode [input] XX * XX * create the specified file, decoding as you go. XX * used with uuencode. XX */ XX#include <stdio.h> XX#include <pwd.h> XX#include <sys/types.h> XX#include <sys/stat.h> XX/* single character decode */ XX#define DEC(c) (((c) - ' ') & 077) XXmain(argc, argv) XXchar **argv; XX{ XX FILE *in, *out; XX struct stat sbuf; XX int mode; XX char dest[128]; XX char buf[80]; XX /* optional input arg */ XX if (argc > 1) { XX if ((in = fopen(argv[1], "r")) == NULL) { XX perror(argv[1]); XX exit(1); XX } XX argv++; argc--; XX } else XX in = stdin; XX if (argc != 1) { XX printf("Usage: uudecode [infile]\n"); XX exit(2); XX } XX /* search for header line */ XX for (;;) { XX if (fgets(buf, sizeof buf, in) == NULL) { XX fprintf(stderr, "No begin line\n"); XX exit(3); XX } XX if (strncmp(buf, "begin ", 6) == 0) XX break; XX } XX sscanf(buf, "begin %o %s", &mode, dest); XX /* handle ~user/file format */ XX if (dest[0] == '~') { XX char *sl; XX struct passwd *getpwnam(); XX char *index(); XX struct passwd *user; XX char dnbuf[100]; XX sl = index(dest, '/'); XX if (sl == NULL) { XX fprintf(stderr, "Illegal ~user\n"); XX exit(3); XX } XX *sl++ = 0; XX user = getpwnam(dest+1); XX if (user == NULL) { XX fprintf(stderr, "No such user as %s\n", dest); XX exit(4); XX } XX strcpy(dnbuf, user->pw_dir); XX strcat(dnbuf, "/"); XX strcat(dnbuf, sl); XX strcpy(dest, dnbuf); XX } XX /* create output file */ XX out = fopen(dest, "w"); XX if (out == NULL) { XX perror(dest); XX exit(4); XX } XX chmod(dest, mode); XX decode(in, out); XX if (fgets(buf, sizeof buf, in) == NULL || strcmp(buf, "end\n")) { XX fprintf(stderr, "No end line\n"); XX exit(5); XX } XX exit(0); XX} XX/* XX * copy from in to out, decoding as you go along. XX */ XXdecode(in, out) XXFILE *in; XXFILE *out; XX{ XX char buf[80]; XX char *bp; XX int n; XX for (;;) { XX /* for each input line */ XX if (fgets(buf, sizeof buf, in) == NULL) { XX printf("Short file\n"); XX exit(10); XX } XX n = DEC(buf[0]); XX if (n <= 0) XX break; XX bp = &buf[1]; XX while (n > 0) { XX outdec(bp, out, n); XX bp += 4; XX n -= 3; XX } XX } XX} XX/* XX * output a group of 3 bytes (4 input characters). XX * the input chars are pointed to by p, they are to XX * be output to file f. n is used to tell us not to XX * output all of them at the end of the file. XX */ XXoutdec(p, f, n) XXchar *p; XXFILE *f; XX{ XX int c1, c2, c3; XX c1 = DEC(*p) << 2 | DEC(p[1]) >> 4; XX c2 = DEC(p[1]) << 4 | DEC(p[2]) >> 2; XX c3 = DEC(p[2]) << 6 | DEC(p[3]); XX if (n >= 1) XX putc(c1, f); XX if (n >= 2) XX putc(c2, f); XX if (n >= 3) XX putc(c3, f); XX} XX/* fr: like read but stdio */ XXint XXfr(fd, buf, cnt) XXFILE *fd; XXchar *buf; XXint cnt; XX{ XX int c, i; XX for (i=0; i<cnt; i++) { XX c = getc(fd); XX if (c == EOF) XX return(i); XX buf[i] = c; XX } XX return (cnt); XX} XX/* XX * Return the ptr in sp at which the character c appears; XX * NULL if not found XX */ XX#define NULL 0 XXchar * XXindex(sp, c) XXregister char *sp, c; XX{ XX do { XX if (*sp == c) XX return(sp); XX } while (*sp++); XX return(NULL); XX} @//E*O*F uudecode.c// chmod u=rw,g=r,o=r $OUT echo x - uuencode.c if test -f uuencode.c ; then echo uuencode.c exists, putting output in $$uuencode.c OUT=$$uuencode.c STATUS=1 else OUT=uuencode.c fi sed 's/^XX//' > $OUT <<'@//E*O*F uuencode.c//' XX/* XX * uuencode [input] output XX * XX * Encode a file so it can be mailed to a remote system. XX */ XX#include <stdio.h> XX#include <sys/types.h> XX#include <sys/stat.h> XX/* ENC is the basic 1 character encoding function to make a char printing */ XX#define ENC(c) (((c) & 077) + ' ') XXmain(argc, argv) XXchar **argv; XX{ XX FILE *in; XX struct stat sbuf; XX int mode; XX /* optional 1st argument */ XX if (argc > 2) { XX if ((in = fopen(argv[1], "r")) == NULL) { XX perror(argv[1]); XX exit(1); XX } XX argv++; argc--; XX } else XX in = stdin; XX if (argc != 2) { XX printf("Usage: uuencode [infile] remotefile\n"); XX exit(2); XX } XX /* figure out the input file mode */ XX fstat(fileno(in), &sbuf); XX mode = sbuf.st_mode & 0777; XX printf("begin %o %s\n", mode, argv[1]); XX encode(in, stdout); XX printf("end\n"); XX exit(0); XX} XX/* XX * copy from in to out, encoding as you go along. XX */ XXencode(in, out) XXFILE *in; XXFILE *out; XX{ XX char buf[80]; XX int i, n; XX for (;;) { XX /* 1 (up to) 45 character line */ XX n = fr(in, buf, 45); XX putc(ENC(n), out); XX for (i=0; i<n; i += 3) XX outdec(&buf[i], out); XX putc('\n', out); XX if (n <= 0) XX break; XX } XX} XX/* XX * output one group of 3 bytes, pointed at by p, on file f. XX */ XXoutdec(p, f) XXchar *p; XXFILE *f; XX{ XX int c1, c2, c3, c4; XX c1 = *p >> 2; XX c2 = (*p << 4) & 060 | (p[1] >> 4) & 017; XX c3 = (p[1] << 2) & 074 | (p[2] >> 6) & 03; XX c4 = p[2] & 077; XX putc(ENC(c1), f); XX putc(ENC(c2), f); XX putc(ENC(c3), f); XX putc(ENC(c4), f); XX} XX/* fr: like read but stdio */ XXint XXfr(fd, buf, cnt) XXFILE *fd; XXchar *buf; XXint cnt; XX{ XX int c, i; XX for (i=0; i<cnt; i++) { XX c = getc(fd); XX if (c == EOF) XX return(i); XX buf[i] = c; XX } XX return (cnt); XX} @//E*O*F uuencode.c// chmod u=rw,g=r,o=r $OUT echo Inspecting for damage in transit... temp=/tmp/sharin$$; dtemp=/tmp/sharout$$ trap "rm -f $temp $dtemp; exit" 0 1 2 3 15 cat > $temp <<\!!! 11 35 261 Makefile 67 325 1839 uuencode.1 180 502 2865 uudecode.c 105 299 1623 uuencode.c 363 1161 6588 total !!! wc Makefile uuencode.1 uudecode.c uuencode.c | sed 's=[^ ]*/==' | diff -b $temp - >$dtemp if test -s $dtemp ; then echo "Ouch [diff of wc output]:" cat $dtemp STATUS=1 elif test $STATUS = 0 ; then echo "No problems found." else echo "WARNING -- PROBLEMS WERE FOUND..." fi exit $STATUS
file: /Techref/method/codec/uuxxcode.txt, 9KB, , updated: 1999/12/15 18:27, local time: 2024/10/14 11:14,
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