General cleanup of command line parsing to allow "busybox" to work as a prefix.
(I.E. any argv[0] that starts with "busybox" winds up in busybox_main().) Added testing/busybox.tests which tests the following permutations: ./busybox ./busybox-suffix ./busybox cat ./busybox-suffix cat ./busybox --help ./busybox-suffix --help ./busybox --help cat ./busybox-suffix --help cat ./busybox --help unknown ./busybox-suffix --help unknown ./unknown Also repair the test suite so ./runtest calls the ".tests" scripts properly. Note: you can now go "busybox busybox busbox ls -l" and it'll take it. The new code is pretty generic. I can block that if anybody can come up with a good reason to...
This commit is contained in:
Rob Landley
parent
9754b91c16
commit
b766c39456
@ -90,8 +90,7 @@ static int suid_cfg_readable;
|
||||
|
||||
|
||||
|
||||
extern void
|
||||
bb_show_usage (void)
|
||||
extern void bb_show_usage (void)
|
||||
{
|
||||
const char *format_string;
|
||||
const char *usage_string = usage_messages;
|
||||
@ -112,8 +111,7 @@ bb_show_usage (void)
|
||||
exit (EXIT_FAILURE);
|
||||
}
|
||||
|
||||
static int
|
||||
applet_name_compare (const void *x, const void *y)
|
||||
static int applet_name_compare (const void *x, const void *y)
|
||||
{
|
||||
const char *name = x;
|
||||
const struct BB_applet *applet = y;
|
||||
@ -123,47 +121,25 @@ applet_name_compare (const void *x, const void *y)
|
||||
|
||||
extern const size_t NUM_APPLETS;
|
||||
|
||||
struct BB_applet *
|
||||
find_applet_by_name (const char *name)
|
||||
struct BB_applet *find_applet_by_name (const char *name)
|
||||
{
|
||||
return bsearch (name, applets, NUM_APPLETS, sizeof (struct BB_applet),
|
||||
applet_name_compare);
|
||||
}
|
||||
|
||||
void
|
||||
run_applet_by_name (const char *name, int argc, char **argv)
|
||||
void run_applet_by_name (const char *name, int argc, char **argv)
|
||||
{
|
||||
static int recurse_level = 0;
|
||||
extern int been_there_done_that; /* From busybox.c */
|
||||
if(ENABLE_FEATURE_SUID_CONFIG) parse_config_file ();
|
||||
|
||||
#ifdef CONFIG_FEATURE_SUID_CONFIG
|
||||
if (recurse_level == 0)
|
||||
parse_config_file ();
|
||||
#endif
|
||||
|
||||
recurse_level++;
|
||||
/* Do a binary search to find the applet entry given the name. */
|
||||
if ((applet_using = find_applet_by_name (name)) != NULL) {
|
||||
bb_applet_name = applet_using->name;
|
||||
if (argv[1] && strcmp (argv[1], "--help") == 0) {
|
||||
if (strcmp (applet_using->name, "busybox") == 0) {
|
||||
if (argv[2])
|
||||
applet_using = find_applet_by_name (argv[2]);
|
||||
else
|
||||
applet_using = NULL;
|
||||
}
|
||||
if (applet_using)
|
||||
bb_show_usage ();
|
||||
been_there_done_that = 1;
|
||||
busybox_main (0, NULL);
|
||||
if(!strncmp(name, "busybox", 7)) busybox_main(argc, argv);
|
||||
/* Do a binary search to find the applet entry given the name. */
|
||||
applet_using = find_applet_by_name(name);
|
||||
if(applet_using) {
|
||||
bb_applet_name = applet_using->name;
|
||||
if(argc==2 && !strcmp(argv[1], "--help")) bb_show_usage ();
|
||||
if(ENABLE_FEATURE_SUID) check_suid (applet_using);
|
||||
exit ((*(applet_using->main)) (argc, argv));
|
||||
}
|
||||
#ifdef CONFIG_FEATURE_SUID
|
||||
check_suid (applet_using);
|
||||
#endif
|
||||
|
||||
exit ((*(applet_using->main)) (argc, argv));
|
||||
}
|
||||
recurse_level--;
|
||||
}
|
||||
|
||||
|
||||
|
||||
@ -9,7 +9,6 @@
|
||||
#include <locale.h>
|
||||
#endif
|
||||
|
||||
int been_there_done_that = 0; /* Also used in applets.c */
|
||||
const char *bb_applet_name;
|
||||
|
||||
#ifdef CONFIG_FEATURE_INSTALLER
|
||||
@ -32,17 +31,6 @@ static const char* const install_dir[] = {
|
||||
/* abstract link() */
|
||||
typedef int (*__link_f)(const char *, const char *);
|
||||
|
||||
/*
|
||||
* Where in the filesystem is this busybox?
|
||||
* [return]
|
||||
* malloc'd string w/ full pathname of busybox's location
|
||||
* NULL on failure
|
||||
*/
|
||||
static inline char *busybox_fullpath(void)
|
||||
{
|
||||
return xreadlink("/proc/self/exe");
|
||||
}
|
||||
|
||||
/* create (sym)links for each applet */
|
||||
static void install_links(const char *busybox, int use_symbolic_links)
|
||||
{
|
||||
@ -72,41 +60,27 @@ int main(int argc, char **argv)
|
||||
{
|
||||
const char *s;
|
||||
|
||||
bb_applet_name = argv[0];
|
||||
bb_applet_name=argv[0];
|
||||
if (*bb_applet_name == '-') bb_applet_name++;
|
||||
for (s = bb_applet_name; *s ;)
|
||||
if (*(s++) == '/') bb_applet_name = s;
|
||||
|
||||
if (bb_applet_name[0] == '-')
|
||||
bb_applet_name++;
|
||||
|
||||
for (s = bb_applet_name; *s != '\0';) {
|
||||
if (*s++ == '/')
|
||||
bb_applet_name = s;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_LOCALE_SUPPORT
|
||||
#ifdef CONFIG_INIT
|
||||
if(getpid()!=1) /* Do not set locale for `init' */
|
||||
#endif
|
||||
{
|
||||
/* Set locale for everybody except `init' */
|
||||
if(ENABLE_LOCALE_SUPPORT && (!ENABLE_INIT || getpid()==1))
|
||||
setlocale(LC_ALL, "");
|
||||
}
|
||||
#endif
|
||||
|
||||
run_applet_by_name(bb_applet_name, argc, argv);
|
||||
bb_error_msg_and_die("applet not found");
|
||||
}
|
||||
|
||||
|
||||
int busybox_main(int argc, char **argv)
|
||||
{
|
||||
int col = 0, len, i;
|
||||
|
||||
#ifdef CONFIG_FEATURE_INSTALLER
|
||||
/*
|
||||
* This style of argument parsing doesn't scale well
|
||||
* in the event that busybox starts wanting more --options.
|
||||
* If someone has a cleaner approach, by all means implement it.
|
||||
*/
|
||||
if (argc > 1 && (strcmp(argv[1], "--install") == 0)) {
|
||||
if (ENABLE_FEATURE_INSTALLER && argc > 1 && !strcmp(argv[1], "--install")) {
|
||||
int use_symbolic_links = 0;
|
||||
int rc = 0;
|
||||
char *busybox;
|
||||
@ -119,7 +93,7 @@ int busybox_main(int argc, char **argv)
|
||||
}
|
||||
|
||||
/* link */
|
||||
busybox = busybox_fullpath();
|
||||
busybox = xreadlink("/proc/self/exe");
|
||||
if (busybox) {
|
||||
install_links(busybox, use_symbolic_links);
|
||||
free(busybox);
|
||||
@ -128,60 +102,45 @@ int busybox_main(int argc, char **argv)
|
||||
}
|
||||
return rc;
|
||||
}
|
||||
#endif /* CONFIG_FEATURE_INSTALLER */
|
||||
|
||||
argc--;
|
||||
/* Deal with --help. (Also print help when called with no arguments) */
|
||||
|
||||
if (argc==1 || !strcmp(argv[1],"--help") ) {
|
||||
if (argc>2) run_applet_by_name(bb_applet_name=argv[2], argc, argv);
|
||||
else {
|
||||
const struct BB_applet *a;
|
||||
int col, output_width;
|
||||
|
||||
/* If we've already been here once, exit now */
|
||||
if (been_there_done_that == 1 || argc < 1) {
|
||||
const struct BB_applet *a = applets;
|
||||
int output_width = 60;
|
||||
if (ENABLE_FEATURE_AUTOWIDTH) {
|
||||
/* Obtain the terminal width. */
|
||||
get_terminal_width_height(0, &output_width, NULL);
|
||||
/* leading tab and room to wrap */
|
||||
output_width -= 20;
|
||||
} else output_width = 60;
|
||||
|
||||
#ifdef CONFIG_FEATURE_AUTOWIDTH
|
||||
/* Obtain the terminal width. */
|
||||
get_terminal_width_height(0, &output_width, NULL);
|
||||
/* leading tab and room to wrap */
|
||||
output_width -= 20;
|
||||
#endif
|
||||
printf("%s\n\n"
|
||||
"Usage: busybox [function] [arguments]...\n"
|
||||
" or: [function] [arguments]...\n\n"
|
||||
"\tBusyBox is a multi-call binary that combines many common Unix\n"
|
||||
"\tutilities into a single executable. Most people will create a\n"
|
||||
"\tlink to busybox for each function they wish to use and BusyBox\n"
|
||||
"\twill act like whatever it was invoked as!\n"
|
||||
"\nCurrently defined functions:\n", bb_msg_full_version);
|
||||
|
||||
printf("%s\n\n"
|
||||
"Usage: busybox [function] [arguments]...\n"
|
||||
" or: [function] [arguments]...\n\n"
|
||||
"\tBusyBox is a multi-call binary that combines many common Unix\n"
|
||||
"\tutilities into a single executable. Most people will create a\n"
|
||||
"\tlink to busybox for each function they wish to use and BusyBox\n"
|
||||
"\twill act like whatever it was invoked as!\n"
|
||||
"\nCurrently defined functions:\n", bb_msg_full_version);
|
||||
|
||||
while (a->name != 0) {
|
||||
col +=
|
||||
printf("%s%s", ((col == 0) ? "\t" : ", "),
|
||||
(a++)->name);
|
||||
if (col > output_width && a->name != 0) {
|
||||
printf(",\n");
|
||||
col = 0;
|
||||
col=0;
|
||||
for(a = applets; a->name;) {
|
||||
col += printf("%s%s", (col ? ", " : "\t"), (a++)->name);
|
||||
if (col > output_width && a->name) {
|
||||
printf(",\n");
|
||||
col = 0;
|
||||
}
|
||||
}
|
||||
printf("\n\n");
|
||||
exit(0);
|
||||
}
|
||||
printf("\n\n");
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/* Flag that we've been here already */
|
||||
been_there_done_that = 1;
|
||||
|
||||
/* Move the command line down a notch */
|
||||
/* Preserve pointers so setproctitle() works consistently */
|
||||
len = argv[argc] + strlen(argv[argc]) - argv[1];
|
||||
memmove(argv[0], argv[1], len);
|
||||
memset(argv[0] + len, 0, argv[1] - argv[0]);
|
||||
|
||||
/* Fix up the argv pointers */
|
||||
len = argv[1] - argv[0];
|
||||
memmove(argv, argv + 1, sizeof(char *) * (argc + 1));
|
||||
for (i = 0; i < argc; i++)
|
||||
argv[i] -= len;
|
||||
|
||||
return (main(argc, argv));
|
||||
} else run_applet_by_name(bb_applet_name=argv[1], argc-1, argv+1);
|
||||
|
||||
bb_error_msg_and_die("applet not found");
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
123
testsuite/busybox.tests
Executable file
123
testsuite/busybox.tests
Executable file
@ -0,0 +1,123 @@
|
||||
#!/bin/sh
|
||||
|
||||
# Tests for busybox applet itself.
|
||||
# Copyright 2005 by Rob Landley <rob@landley.net>
|
||||
# Licensed under GPL v2, see file LICENSE for details.
|
||||
|
||||
if [ ${#COMMAND} -eq 0 ]; then COMMAND=busybox; fi
|
||||
. testing.sh
|
||||
|
||||
# We'll assume "cat" is built in, because we need some other command to test.
|
||||
|
||||
HELPDUMP=`$COMMAND`
|
||||
|
||||
# The gratuitous "\n"s are due to a shell idiosyncrasy: environment variables
|
||||
# seem to strip trailing whitespace, which makes cmp and diff unhappy.
|
||||
|
||||
ln -s `which "$COMMAND"` busybox-suffix
|
||||
ln -s `which "$COMMAND"` unknown
|
||||
|
||||
for i in busybox busybox-suffix
|
||||
do
|
||||
# The gratuitous "\n"s are due to a shell idiosyncrasy:
|
||||
# environment variables seem to strip trailing whitespace.
|
||||
|
||||
testing "$i" "" "$HELPDUMP\n\n" "" ""
|
||||
|
||||
testing "$i cat" "cat" "moo" "" "moo"
|
||||
|
||||
testing "$i unknown" "unknown 2>&1" \
|
||||
"unknown: applet not found\n" "" ""
|
||||
|
||||
testing "$i --help" "--help 2>&1" "$HELPDUMP\n\n" "" ""
|
||||
|
||||
testing "$i --help cat" "--help cat 2>&1 | grep prints" \
|
||||
"Concatenates FILE(s) and prints them to stdout.\n" "" ""
|
||||
|
||||
testing "$i --help unknown" "--help unknown 2>&1" \
|
||||
"unknown: applet not found\n" "" ""
|
||||
|
||||
COMMAND=./busybox-suffix
|
||||
done
|
||||
|
||||
COMMAND="./unknown"
|
||||
testing "busybox as unknown name" "2>&1" "unknown: applet not found\n" "" ""
|
||||
|
||||
rm -f busybox-suffix unknown
|
||||
|
||||
exit
|
||||
|
||||
General cleanup of command line parsing to allow "busybox" to work as a prefix.
|
||||
(I.E. any argv[0] that starts with "busybox" winds up in busybox_main().)
|
||||
|
||||
Tests:
|
||||
./busybox
|
||||
./busybox-walrus
|
||||
./busybox ls
|
||||
./busybox-walrus ls
|
||||
./busybox --help
|
||||
./busybox-walrus --help
|
||||
./busybox --help ls
|
||||
./busybox-walrus --help ls
|
||||
./busybox --help walrus
|
||||
./busybox-walrus --help walrus
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
# These tests require the full option set.
|
||||
|
||||
# Longish chunk of data re-used by the next few tests
|
||||
|
||||
data="42 1 3 woot
|
||||
42 1 010 zoology
|
||||
egg 1 2 papyrus
|
||||
7 3 42 soup
|
||||
999 3 0 algebra
|
||||
"
|
||||
|
||||
# Sorting with keys
|
||||
|
||||
testing "sort one key" "-k4,4 input" \
|
||||
"999 3 0 algebra
|
||||
egg 1 2 papyrus
|
||||
7 3 42 soup
|
||||
42 1 3 woot
|
||||
42 1 010 zoology
|
||||
" "$data" ""
|
||||
|
||||
testing "sort key range with numeric option" "-k2,3n input" \
|
||||
"42 1 010 zoology
|
||||
42 1 3 woot
|
||||
egg 1 2 papyrus
|
||||
7 3 42 soup
|
||||
999 3 0 algebra
|
||||
" "$data" ""
|
||||
|
||||
# Busybox is definitely doing this one wrong just now...
|
||||
|
||||
testing "sort key range with numeric option and global reverse" \
|
||||
"-k2,3n -r input" \
|
||||
"egg 1 2 papyrus
|
||||
42 1 3 woot
|
||||
42 1 010 zoology
|
||||
999 3 0 algebra
|
||||
7 3 42 soup
|
||||
" "$data" ""
|
||||
|
||||
#
|
||||
|
||||
testing "sort key range with multiple options" "-k2,3rn input" \
|
||||
"7 3 42 soup
|
||||
999 3 0 algebra
|
||||
42 1 010 zoology
|
||||
42 1 3 woot
|
||||
egg 1 2 papyrus
|
||||
" "$data" ""
|
||||
|
||||
exit $FAILCOUNT
|
||||
@ -97,8 +97,8 @@ for applet in $applets; do
|
||||
status=1
|
||||
fi
|
||||
fi
|
||||
|
||||
if [ -f "$applet".tests ]
|
||||
applet=`echo "$applet" | sed -n 's/\.tests$//p'`
|
||||
if [ ${#applet} != 0 ]
|
||||
then
|
||||
rm -f links/"$applet"
|
||||
ln -s ../../busybox links/"$applet"
|
||||
|
||||
@ -48,13 +48,13 @@ function testing()
|
||||
if [ $? -ne 0 ]
|
||||
then
|
||||
FAILCOUNT=$[$FAILCOUNT+1]
|
||||
echo FAIL:"$1"
|
||||
echo "FAIL: $1"
|
||||
if [ $verbose ]
|
||||
then
|
||||
diff -u expected actual
|
||||
fi
|
||||
else
|
||||
echo PASS:"$1"
|
||||
echo "PASS: $1"
|
||||
fi
|
||||
rm -f input expected actual
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user