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* archival/bunzip2.c: Include <unistd.h>.

Browse Source 
(bunzip2_main): Read data from standard input if FILE argument is `-' or
  omitted.
* include/usage.h (bunzip2_trivial_usage, bunzip2_full_usage): Rewrite.
* testsuite/bunzip2/bunzip2-reads-from-standard-input: New.
This commit is contained in:
Matt Kraai 2002-03-27 17:31:01 +00:00
parent fa15f702d2
commit 9cdb0601eb
3 changed files with 29 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
archival/bunzip2.c
View File

@ -58,6 +58,7 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <getopt.h> #include <getopt.h>
#include <unistd.h>
#include <busybox.h> #include <busybox.h>
//#define TRUE 1 //#define TRUE 1
@ -2319,45 +2320,49 @@ errhandler_io:
int bunzip2_main(int argc, char **argv) int bunzip2_main(int argc, char **argv)
{ {
const int bunzip_to_stdout = 1; const int bunzip_to_stdout = 1;
const int bunzip_force = 2;
int flags = 0; int flags = 0;
int opt = 0; int opt = 0;
FILE *src_stream; FILE *src_stream;
FILE *dst_stream; FILE *dst_stream;
char *save_name; char *save_name = NULL;
char *save_name_ptr;
/* if called as bzcat */ /* if called as bzcat */
if (strcmp(applet_name, "bzcat") == 0) if (strcmp(applet_name, "bzcat") == 0)
flags |= bunzip_to_stdout; flags |= bunzip_to_stdout;
while ((opt = getopt(argc, argv, "ch")) != -1) { while ((opt = getopt(argc, argv, "cfh")) != -1) {
switch (opt) { switch (opt) {
case 'c': case 'c':
flags |= bunzip_to_stdout; flags |= bunzip_to_stdout;
break; break;
case 'f':
flags |= bunzip_force;
break;
case 'h': case 'h':
default: default:
show_usage(); /* exit's inside usage */ show_usage(); /* exit's inside usage */
} }
} }
save_name = xstrdup(argv[optind]); /* Set input filename and number */
if (argv[optind] == NULL || strcmp(argv[optind], "-") == 0) {
flags |= bunzip_to_stdout;
src_stream = stdin;
} else {
/* Open input file */
src_stream = xfopen(argv[optind], "r");
if (save_name == NULL) { save_name = xstrdup(argv[optind]);
show_usage(); if (strcmp(save_name + strlen(save_name) - 4, ".bz2") != 0)
error_msg_and_die("Invalid extension");
save_name[strlen(save_name) - 4] = '\0';
} }
src_stream = xfopen(argv[optind], "r"); /* Check that the input is sane. */
if (isatty(fileno(src_stream)) && (flags & bunzip_force) == 0)
save_name_ptr = strrchr(save_name, '.'); error_msg_and_die("compressed data not read from terminal. Use -f to force it.");
if (save_name_ptr == NULL) {
return(FALSE);
}
if (strcmp(save_name_ptr, ".bz2") != 0) {
error_msg("Invalid extension, expected .bz2");
}
*save_name_ptr = '\0';
if (flags & bunzip_to_stdout) { if (flags & bunzip_to_stdout) {
dst_stream = stdout; dst_stream = stdout;

9
include/usage.h
View File

@ -52,11 +52,12 @@
"bar" "bar"
#define bunzip2_trivial_usage \ #define bunzip2_trivial_usage \
"[-c] FILE" "[OPTION]... [FILE]"
#define bunzip2_full_usage \ #define bunzip2_full_usage \
"Uncompress FILE to current directory, stripping its .bz2 extension.\n"\ "Uncompress FILE (or standard input if FILE is '-' or omitted).\n\n" \
" -c output to stdout\n"\ "Options:\n" \
" -k is assumed" "\t-c\tWrite output to standard output\n" \
"\t-f\tForce"
#define bzcat_trivial_usage \ #define bzcat_trivial_usage \
"FILE" "FILE"

2
testsuite/bunzip2/bunzip2-reads-from-standard-input Normal file
View File

@ -0,0 +1,2 @@
echo foo | bzip2 -c | busybox bunzip2 -c > output
echo foo | cmp - output