/*
* dos2unix for BusyBox
*
- * dos2unix '\n' convertor 0.5.0
+ * dos2unix '\n' converter 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.
*
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
-*/
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+//config:config DOS2UNIX
+//config: bool "dos2unix (5.1 kb)"
+//config: default y
+//config: help
+//config: dos2unix is used to convert a text file from DOS format to
+//config: UNIX format, and vice versa.
+//config:
+//config:config UNIX2DOS
+//config: bool "unix2dos (5.1 kb)"
+//config: default y
+//config: help
+//config: unix2dos is used to convert a text file from UNIX format to
+//config: DOS format, and vice versa.
+
+//applet:IF_DOS2UNIX(APPLET_NOEXEC(dos2unix, dos2unix, BB_DIR_USR_BIN, BB_SUID_DROP, dos2unix))
+//applet:IF_UNIX2DOS(APPLET_NOEXEC(unix2dos, dos2unix, BB_DIR_USR_BIN, BB_SUID_DROP, unix2dos))
+
+//kbuild:lib-$(CONFIG_DOS2UNIX) += dos2unix.o
+//kbuild:lib-$(CONFIG_UNIX2DOS) += dos2unix.o
+
+//usage:#define dos2unix_trivial_usage
+//usage: "[-ud] [FILE]"
+//usage:#define dos2unix_full_usage "\n\n"
+//usage: "Convert FILE in-place from DOS to Unix format.\n"
+//usage: "When no file is given, use stdin/stdout.\n"
+//usage: "\n -u dos2unix"
+//usage: "\n -d unix2dos"
+//usage:
+//usage:#define unix2dos_trivial_usage
+//usage: "[-ud] [FILE]"
+//usage:#define unix2dos_full_usage "\n\n"
+//usage: "Convert FILE in-place from Unix to DOS format.\n"
+//usage: "When no file is given, use stdin/stdout.\n"
+//usage: "\n -u dos2unix"
+//usage: "\n -d unix2dos"
#include "libbb.h"
+/* This is a NOEXEC applet. Be very careful! */
+
enum {
CT_UNIX2DOS = 1,
CT_DOS2UNIX
static void convert(char *fn, int conv_type)
{
FILE *in, *out;
- int i;
+ int ch;
char *temp_fn = temp_fn; /* for compiler */
char *resolved_fn = resolved_fn;
out = stdout;
if (fn != NULL) {
struct stat st;
+ int fd;
resolved_fn = xmalloc_follow_symlinks(fn);
if (resolved_fn == NULL)
bb_simple_perror_msg_and_die(fn);
in = xfopen_for_read(resolved_fn);
- fstat(fileno(in), &st);
+ xfstat(fileno(in), &st, resolved_fn);
temp_fn = xasprintf("%sXXXXXX", resolved_fn);
- i = mkstemp(temp_fn);
- if (i == -1
- || fchmod(i, st.st_mode) == -1
- ) {
+ fd = xmkstemp(temp_fn);
+ if (fchmod(fd, st.st_mode) == -1)
bb_simple_perror_msg_and_die(temp_fn);
- }
- out = xfdopen_for_write(i);
+ fchown(fd, st.st_uid, st.st_gid);
+
+ out = xfdopen_for_write(fd);
}
- while ((i = fgetc(in)) != EOF) {
- if (i == '\r')
+ while ((ch = fgetc(in)) != EOF) {
+ if (ch == '\r')
continue;
- if (i == '\n')
+ if (ch == '\n')
if (conv_type == CT_UNIX2DOS)
fputc('\r', out);
- fputc(i, out);
+ fputc(ch, out);
}
if (fn != NULL) {
int o, conv_type;
/* See if we are supposed to be doing dos2unix or unix2dos */
- conv_type = CT_UNIX2DOS;
- if (applet_name[0] == 'd') {
+ if (ENABLE_DOS2UNIX
+ && (!ENABLE_UNIX2DOS || applet_name[0] == 'd')
+ ) {
conv_type = CT_DOS2UNIX;
+ } else {
+ conv_type = CT_UNIX2DOS;
}
/* -u convert to unix, -d convert to dos */
- opt_complementary = "u--d:d--u"; /* mutually exclusive */
- o = getopt32(argv, "du");
+ o = getopt32(argv, "^" "du" "\0" "u--d:d--u"); /* mutually exclusive */
/* Do the conversion requested by an argument else do the default
* conversion depending on our name. */
do {
/* might be convert(NULL) if there is no filename given */
convert(*argv, conv_type);
- } while (*++argv);
+ } while (*argv && *++argv);
return 0;
}