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md5_sha1_sum: fix mishandling when run as /bin/md5sum (with path)

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chown/chgrp: completely match coreutils 6.8 wrt symlink handling

function                                             old     new   delta
recursive_action                                     411     422     +11
arith                                               2033    2042      +9
collect_blk                                          467     474      +7
dhcprelay_main                                      1122    1125      +3
fsck_main                                           1909    1911      +2
singlemount                                         4555    4547      -8
xmalloc_realpath                                      14       -     -14
get_lcm                                              123     105     -18
ed_main                                             3111    3084     -27
chown_main                                           217     183     -34
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 5/4 up/down: 32/-101)           Total: -69 bytes
   text    data     bss     dec     hex filename
 684132    2744   14000  700876   ab1cc busybox_old
 684060    2744   14000  700804   ab184 busybox_unstripped
This commit is contained in:
Denis Vlasenko 2007-07-05 00:12:55 +00:00
parent 42b3dea9bf
commit d166f83d74
4 changed files with 51 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
coreutils/chown.c
View File

@ -65,6 +65,7 @@ int chown_main(int argc, char **argv);
int chown_main(int argc, char **argv) int chown_main(int argc, char **argv)
{ {
int retval = EXIT_SUCCESS; int retval = EXIT_SUCCESS;
int flags;
chown_fptr chown_func; chown_fptr chown_func;
opt_complementary = "-2"; opt_complementary = "-2";
@ -80,23 +81,21 @@ int chown_main(int argc, char **argv)
chown_func = lchown; chown_func = lchown;
} }
flags = ACTION_DEPTHFIRST; /* match coreutils order */
if (OPT_RECURSE)
flags |= ACTION_RECURSE;
if (OPT_TRAVERSE_TOP)
flags |= ACTION_FOLLOWLINKS_L0; /* -H/-L: follow links on depth 0 */
if (OPT_TRAVERSE)
flags |= ACTION_FOLLOWLINKS; /* follow links if -L */
parse_chown_usergroup_or_die(&ugid, argv[0]); parse_chown_usergroup_or_die(&ugid, argv[0]);
/* Ok, ready to do the deed now */ /* Ok, ready to do the deed now */
argv++; argv++;
do { do {
char *arg = *argv; if (!recursive_action(*argv,
flags, /* flags */
if (OPT_TRAVERSE_TOP) {
/* resolves symlink (even recursive) */
arg = xmalloc_realpath(arg);
if (!arg)
continue;
}
if (!recursive_action(arg,
(OPT_RECURSE ? ACTION_RECURSE : 0) | /* recurse */
(OPT_TRAVERSE ? ACTION_FOLLOWLINKS : 0),/* follow links if -L */
fileAction, /* file action */ fileAction, /* file action */
fileAction, /* dir action */ fileAction, /* dir action */
chown_func, /* user data */ chown_func, /* user data */
@ -104,9 +103,6 @@ int chown_main(int argc, char **argv)
) { ) {
retval = EXIT_FAILURE; retval = EXIT_FAILURE;
} }
if (OPT_TRAVERSE_TOP)
free(arg);
} while (*++argv); } while (*++argv);
return retval; return retval;
@ -137,8 +133,10 @@ create() {
tst() { tst() {
create test1 create test1
create test2 create test2
(cd test1; $t1 $1) echo "[$1]" >>test1.out
(cd test2; $t2 $1) echo "[$1]" >>test2.out
(cd test1; $t1 $1) >>test1.out 2>&1
(cd test2; $t2 $1) >>test2.out 2>&1
(cd test1; ls -lnR) >out1 (cd test1; ls -lnR) >out1
(cd test2; ls -lnR) >out2 (cd test2; ls -lnR) >out2
echo "chown $1" >out.diff echo "chown $1" >out.diff
@ -152,18 +150,22 @@ tst_for_each() {
tst "$1 1:1 linkfile" tst "$1 1:1 linkfile"
} }
echo "If script produced 'out.diff' file, then at least one testcase failed" echo "If script produced 'out.diff' file, then at least one testcase failed"
>test1.out
>test2.out
# These match coreutils 6.8: # These match coreutils 6.8:
tst_for_each "" tst_for_each "-v"
tst_for_each "-R" tst_for_each "-vR"
tst_for_each "-RP" tst_for_each "-vRP"
tst_for_each "-RL" tst_for_each "-vRL"
tst_for_each "-RH" tst_for_each "-vRH"
tst_for_each "-h" tst_for_each "-vh"
tst_for_each "-hR" tst_for_each "-vhR"
tst_for_each "-hRP" tst_for_each "-vhRP"
# Below: with "chown linkdir" coreutils 6.8 will chown linkdir _target_, tst_for_each "-vhRL"
# we lchown _the link_. I believe we are "more correct". tst_for_each "-vhRH"
#tst_for_each "-hRL" # Fix `name' in coreutils output
#tst_for_each "-hRH" sed 's/`/'"'"'/g' -i test2.out
# Compare us with coreutils output
diff -u test1.out test2.out
*/ */

2
coreutils/md5_sha1_sum.c
View File

@ -84,7 +84,7 @@ int md5_sha1_sum_main(int argc, char **argv)
uint8_t *hash_value; uint8_t *hash_value;
unsigned flags; unsigned flags;
hash_algo_t hash_algo = ENABLE_MD5SUM hash_algo_t hash_algo = ENABLE_MD5SUM
? (ENABLE_SHA1SUM ? (**argv=='m' ? HASH_MD5 : HASH_SHA1) : HASH_MD5) ? (ENABLE_SHA1SUM ? (applet_name[0] == 'm' ? HASH_MD5 : HASH_SHA1) : HASH_MD5)
: HASH_SHA1; : HASH_SHA1;
if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK) if (ENABLE_FEATURE_MD5_SHA1_SUM_CHECK)

11
include/libbb.h
View File

@ -214,15 +214,16 @@ extern int is_directory(const char *name, int followLinks, struct stat *statBuf)
extern int remove_file(const char *path, int flags); extern int remove_file(const char *path, int flags);
extern int copy_file(const char *source, const char *dest, int flags); extern int copy_file(const char *source, const char *dest, int flags);
enum { enum {
ACTION_RECURSE = (1 << 0), ACTION_RECURSE = (1 << 0),
ACTION_FOLLOWLINKS = (1 << 1), ACTION_FOLLOWLINKS = (1 << 1),
ACTION_DEPTHFIRST = (1 << 2), ACTION_FOLLOWLINKS_L0 = (1 << 2),
/*ACTION_REVERSE = (1 << 3), - unused */ ACTION_DEPTHFIRST = (1 << 3),
/*ACTION_REVERSE = (1 << 4), - unused */
}; };
extern int recursive_action(const char *fileName, unsigned flags, extern int recursive_action(const char *fileName, unsigned flags,
int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth), int (*fileAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth), int (*dirAction) (const char *fileName, struct stat* statbuf, void* userData, int depth),
void* userData, const unsigned depth); void* userData, unsigned depth);
extern int device_open(const char *device, int mode); extern int device_open(const char *device, int mode);
extern int get_console_fd(void); extern int get_console_fd(void);
extern char *find_block_device(const char *path); extern char *find_block_device(const char *path);

26
libbb/recursive_action.c
View File

@ -46,7 +46,7 @@ int recursive_action(const char *fileName,
int (*fileAction)(const char *fileName, struct stat *statbuf, void* userData, int depth), int (*fileAction)(const char *fileName, struct stat *statbuf, void* userData, int depth),
int (*dirAction)(const char *fileName, struct stat *statbuf, void* userData, int depth), int (*dirAction)(const char *fileName, struct stat *statbuf, void* userData, int depth),
void* userData, void* userData,
const unsigned depth) unsigned depth)
{ {
struct stat statbuf; struct stat statbuf;
int status; int status;
@ -55,12 +55,13 @@ int recursive_action(const char *fileName,
if (!fileAction) fileAction = true_action; if (!fileAction) fileAction = true_action;
if (!dirAction) dirAction = true_action; if (!dirAction) dirAction = true_action;
status = (flags & ACTION_FOLLOWLINKS ? stat : lstat)(fileName, &statbuf);
status = ACTION_FOLLOWLINKS; /* hijack a variable for bitmask... */
if (!depth) status = ACTION_FOLLOWLINKS | ACTION_FOLLOWLINKS_L0;
status = ((flags & status) ? stat : lstat)(fileName, &statbuf);
if (status < 0) { if (status < 0) {
#ifdef DEBUG_RECURS_ACTION #ifdef DEBUG_RECURS_ACTION
bb_error_msg("status=%d followLinks=%d TRUE=%d", bb_error_msg("status=%d flags=%x", status, flags);
status, flags & ACTION_FOLLOWLINKS, TRUE);
#endif #endif
goto done_nak_warn; goto done_nak_warn;
} }
@ -82,9 +83,8 @@ int recursive_action(const char *fileName,
if (!(flags & ACTION_DEPTHFIRST)) { if (!(flags & ACTION_DEPTHFIRST)) {
status = dirAction(fileName, &statbuf, userData, depth); status = dirAction(fileName, &statbuf, userData, depth);
if (!status) { if (!status)
goto done_nak_warn; goto done_nak_warn;
}
if (status == SKIP) if (status == SKIP)
return TRUE; return TRUE;
} }
@ -103,23 +103,23 @@ int recursive_action(const char *fileName,
nextFile = concat_subpath_file(fileName, next->d_name); nextFile = concat_subpath_file(fileName, next->d_name);
if (nextFile == NULL) if (nextFile == NULL)
continue; continue;
/* now descend into it, forcing recursion. */ /* now descend into it (NB: ACTION_RECURSE is set in flags) */
if (!recursive_action(nextFile, flags | ACTION_RECURSE, if (!recursive_action(nextFile, flags, fileAction, dirAction, userData, depth+1))
fileAction, dirAction, userData, depth+1)) {
status = FALSE; status = FALSE;
}
free(nextFile); free(nextFile);
} }
closedir(dir); closedir(dir);
if ((flags & ACTION_DEPTHFIRST) &&
!dirAction(fileName, &statbuf, userData, depth)) { if (flags & ACTION_DEPTHFIRST) {
if (!dirAction(fileName, &statbuf, userData, depth))
goto done_nak_warn; goto done_nak_warn;
} }
if (!status) if (!status)
return FALSE; return FALSE;
return TRUE; return TRUE;
done_nak_warn:
done_nak_warn:
bb_perror_msg("%s", fileName); bb_perror_msg("%s", fileName);
return FALSE; return FALSE;
} }