diff options
Diffstat (limited to 'dos2unix.c')
| -rw-r--r-- | dos2unix.c | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/dos2unix.c b/dos2unix.c deleted file mode 100644 index 8b65d05..0000000 --- a/dos2unix.c +++ /dev/null @@ -1,194 +0,0 @@ -/* - * dos2unix for BusyBox - * - * dos2unix '\n' convertor 0.5.0 - * based on Unix2Dos 0.9.0 by Peter Hanecak (made 19.2.1997) - * Copyright 1997,.. by Peter Hanecak <hanecak@megaloman.sk>. - * All rights reserved. - * - * dos2unix filters reading input from stdin and writing output to stdout. - * Without arguments it reverts the format (e.i. if source is in UNIX format, - * output is in DOS format and vice versa). - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * See the COPYING file for license information. - */ - -#include <string.h> -#include <getopt.h> -#include <unistd.h> -#include <stdint.h> -#include <fcntl.h> -#include <sys/time.h> -#include "busybox.h" - -/* We are making a lame pseudo-random string generator here. in - * convert(), each pass through the while loop will add more and more - * stuff into value, which is _supposed_ to wrap. We don't care about - * it being accurate. We care about it being messy, since we then mod - * it by the sizeof(letters) and then use that as an index into letters - * to pick a random letter to add to out temporary file. */ -typedef unsigned long int bb_uint64_t; - -static const char letters[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; - -// if fn is NULL then input is stdin and output is stdout -static int convert(char *fn, int ConvType) -{ - int c, fd; - struct timeval tv; - char tempFn[BUFSIZ]; - static bb_uint64_t value=0; - FILE *in = stdin, *out = stdout; - - if (fn != NULL) { - if ((in = wfopen(fn, "rw")) == NULL) { - return -1; - } - strcpy(tempFn, fn); - c = strlen(tempFn); - tempFn[c] = '.'; - while(1) { - if (c >=BUFSIZ) - error_msg_and_die("unique name not found"); - /* Get some semi random stuff to try and make a - * random filename based (and in the same dir as) - * the input file... */ - gettimeofday (&tv, NULL); - value += ((bb_uint64_t) tv.tv_usec << 16) ^ tv.tv_sec ^ getpid (); - tempFn[++c] = letters[value % 62]; - tempFn[c+1] = '\0'; - value /= 62; - - if ((fd = open(tempFn, O_RDWR | O_CREAT | O_EXCL, 0600)) < 0 ) { - continue; - } - out = fdopen(fd, "w+"); - if (!out) { - close(fd); - remove(tempFn); - continue; - } - break; - } - } - - while ((c = fgetc(in)) != EOF) { - if (c == '\r') { - if ((ConvType == CT_UNIX2DOS) && (fn != NULL)) { - // file is alredy in DOS format so it is not necessery to touch it - remove(tempFn); - if (fclose(in) < 0 || fclose(out) < 0) { - perror_msg(NULL); - return -2; - } - return 0; - } - if (!ConvType) - ConvType = CT_DOS2UNIX; - break; - } - if (c == '\n') { - if ((ConvType == CT_DOS2UNIX) && (fn != NULL)) { - // file is alredy in UNIX format so it is not necessery to touch it - remove(tempFn); - if ((fclose(in) < 0) || (fclose(out) < 0)) { - perror_msg(NULL); - return -2; - } - return 0; - } - if (!ConvType) { - ConvType = CT_UNIX2DOS; - } - if (ConvType == CT_UNIX2DOS) { - fputc('\r', out); - } - fputc('\n', out); - break; - } - fputc(c, out); - } - if (c != EOF) - while ((c = fgetc(in)) != EOF) { - if (c == '\r') - continue; - if (c == '\n') { - if (ConvType == CT_UNIX2DOS) - fputc('\r', out); - fputc('\n', out); - continue; - } - fputc(c, out); - } - - if (fn != NULL) { - if (fclose(in) < 0 || fclose(out) < 0) { - perror_msg(NULL); - remove(tempFn); - return -2; - } - - /* Assume they are both on the same filesystem (which - * should be true since we put them into the same directory - * so we _should_ be ok, but you never know... */ - if (rename(tempFn, fn) < 0) { - perror_msg("unable to rename '%s' as '%s'", tempFn, fn); - return -1; - } - } - - return 0; -} - -int dos2unix_main(int argc, char *argv[]) -{ - int ConvType = CT_AUTO; - int o; - - //See if we are supposed to be doing dos2unix or unix2dos - if (argv[0][0]=='d') { - ConvType = CT_DOS2UNIX; - } - if (argv[0][0]=='u') { - ConvType = CT_UNIX2DOS; - } - - // process parameters - while ((o = getopt(argc, argv, "du")) != EOF) { - switch (o) { - case 'd': - ConvType = CT_UNIX2DOS; - break; - case 'u': - ConvType = CT_DOS2UNIX; - break; - default: - show_usage(); - } - } - - if (optind < argc) { - while(optind < argc) - if ((o = convert(argv[optind++], ConvType)) < 0) - break; - } - else - o = convert(NULL, ConvType); - - return o; -} - |