source: clfs-embedded/patches/busybox-1.13.3-branch_update-1.patch@ b95afd6

Last change on this file since b95afd6 was 118c546, checked in by Jim Gifford <clfs@…>, 16 years ago

Updated Busybox
  • Property mode set to 100644
File size: 15.2 KB
RevLine 
[118c546]1Submitted By: Jim Gifford (jim at cross-lfs dot org)
2Date: 03-28-2009
3Initial Package Version: 1.13.3
4Origin: Upstream
5Upstream Status: Applied
6Description: This is a branch update for busybox-1.13.3, and should be
7 rechecked periodically.
8
9diff -Naur busybox-1.13.3.orig/coreutils/tail.c busybox-1.13.3/coreutils/tail.c
10--- busybox-1.13.3.orig/coreutils/tail.c 2009-02-26 03:47:02.000000000 -0800
11+++ busybox-1.13.3/coreutils/tail.c 2009-03-28 08:25:12.762859338 -0700
12@@ -104,7 +104,7 @@
13 if (argv[1] && (argv[1][0] == '+' || argv[1][0] == '-')
14 && isdigit(argv[1][1])
15 ) {
16- count = eat_num(&argv[1][1]);
17+ count = eat_num(argv[1]);
18 argv++;
19 argc--;
20 }
21diff -Naur busybox-1.13.3.orig/shell/ash.c busybox-1.13.3/shell/ash.c
22--- busybox-1.13.3.orig/shell/ash.c 2009-02-26 03:46:55.000000000 -0800
23+++ busybox-1.13.3/shell/ash.c 2009-03-28 08:25:12.198825534 -0700
24@@ -30,7 +30,7 @@
25 */
26
27 /*
28- * The follow should be set to reflect the type of system you have:
29+ * The following should be set to reflect the type of system you have:
30 * JOBS -> 1 if you have Berkeley job control, 0 otherwise.
31 * define SYSV if you are running under System V.
32 * define DEBUG=1 to compile in debugging ('set -o debug' to turn on)
33@@ -40,6 +40,11 @@
34 * a quit signal will generate a core dump.
35 */
36 #define DEBUG 0
37+/* Tweak debug output verbosity here */
38+#define DEBUG_TIME 0
39+#define DEBUG_PID 1
40+#define DEBUG_SIG 1
41+
42 #define PROFILE 0
43
44 #define IFS_BROKEN
45@@ -47,9 +52,9 @@
46 #define JOBS ENABLE_ASH_JOB_CONTROL
47
48 #if DEBUG
49-#ifndef _GNU_SOURCE
50-#define _GNU_SOURCE
51-#endif
52+# ifndef _GNU_SOURCE
53+# define _GNU_SOURCE
54+# endif
55 #endif
56
57 #include "busybox.h" /* for applet_names */
58@@ -57,15 +62,15 @@
59 #include <setjmp.h>
60 #include <fnmatch.h>
61 #if JOBS || ENABLE_ASH_READ_NCHARS
62-#include <termios.h>
63+# include <termios.h>
64 #endif
65
66 #ifndef PIPE_BUF
67-#define PIPE_BUF 4096 /* amount of buffering in a pipe */
68+# define PIPE_BUF 4096 /* amount of buffering in a pipe */
69 #endif
70
71 #if defined(__uClinux__)
72-#error "Do not even bother, ash will not run on uClinux"
73+# error "Do not even bother, ash will not run on uClinux"
74 #endif
75
76
77@@ -76,14 +81,6 @@
78 #define CMDTABLESIZE 31 /* should be prime */
79
80
81-/* ============ Misc helpers */
82-
83-#define xbarrier() do { __asm__ __volatile__ ("": : :"memory"); } while (0)
84-
85-/* C99 say: "char" declaration may be signed or unsigned default */
86-#define signed_char2int(sc) ((int)((signed char)sc))
87-
88-
89 /* ============ Shell options */
90
91 static const char *const optletters_optnames[] = {
92@@ -245,7 +242,30 @@
93 } while (0)
94
95
96+/* ============ DEBUG */
97+#if DEBUG
98+static void trace_printf(const char *fmt, ...);
99+static void trace_vprintf(const char *fmt, va_list va);
100+# define TRACE(param) trace_printf param
101+# define TRACEV(param) trace_vprintf param
102+# define close(f) do { \
103+ int dfd = (f); \
104+ if (close(dfd) < 0) \
105+ bb_error_msg("bug on %d: closing %d(%x)", \
106+ __LINE__, dfd, dfd); \
107+} while (0)
108+#else
109+# define TRACE(param)
110+# define TRACEV(param)
111+#endif
112+
113+
114 /* ============ Utility functions */
115+#define xbarrier() do { __asm__ __volatile__ ("": : :"memory"); } while (0)
116+
117+/* C99 say: "char" declaration may be signed or unsigned by default */
118+#define signed_char2int(sc) ((int)(signed char)(sc))
119+
120 static int isdigit_str9(const char *str)
121 {
122 int maxlen = 9 + 1; /* max 9 digits: 999999999 */
123@@ -284,6 +304,12 @@
124 exception = e;
125 longjmp(exception_handler->loc, 1);
126 }
127+#if DEBUG
128+#define raise_exception(e) do { \
129+ TRACE(("raising exception %d on line %d\n", (e), __LINE__)); \
130+ raise_exception(e); \
131+} while (0)
132+#endif
133
134 /*
135 * Called from trap.c when a SIGINT is received. (If the user specifies
136@@ -316,6 +342,12 @@
137 raise_exception(i);
138 /* NOTREACHED */
139 }
140+#if DEBUG
141+#define raise_interrupt() do { \
142+ TRACE(("raising interrupt on line %d\n", __LINE__)); \
143+ raise_interrupt(); \
144+} while (0)
145+#endif
146
147 #if ENABLE_ASH_OPTIMIZE_FOR_SIZE
148 static void
149@@ -334,7 +366,9 @@
150 raise_interrupt();
151 }
152 #define FORCE_INT_ON force_int_on()
153-#else
154+
155+#else /* !ASH_OPTIMIZE_FOR_SIZE */
156+
157 #define INT_ON do { \
158 xbarrier(); \
159 if (--suppressint == 0 && intpending) \
160@@ -346,7 +380,7 @@
161 if (intpending) \
162 raise_interrupt(); \
163 } while (0)
164-#endif /* ASH_OPTIMIZE_FOR_SIZE */
165+#endif /* !ASH_OPTIMIZE_FOR_SIZE */
166
167 #define SAVE_INT(v) ((v) = suppressint)
168
169@@ -376,7 +410,6 @@
170 onsig(int signo)
171 {
172 gotsig[signo - 1] = 1;
173- pendingsig = signo;
174
175 if (/* exsig || */ (signo == SIGINT && !trap[SIGINT])) {
176 if (!suppressint) {
177@@ -384,6 +417,8 @@
178 raise_interrupt(); /* does not return */
179 }
180 intpending = 1;
181+ } else {
182+ pendingsig = signo;
183 }
184 }
185
186@@ -684,6 +719,12 @@
187
188 if (debug != 1)
189 return;
190+ if (DEBUG_TIME)
191+ fprintf(tracefile, "%u ", (int) time(NULL));
192+ if (DEBUG_PID)
193+ fprintf(tracefile, "[%u] ", (int) getpid());
194+ if (DEBUG_SIG)
195+ fprintf(tracefile, "pending s:%d i:%d(supp:%d) ", pendingsig, intpending, suppressint);
196 va_start(va, fmt);
197 vfprintf(tracefile, fmt, va);
198 va_end(va);
199@@ -694,6 +735,12 @@
200 {
201 if (debug != 1)
202 return;
203+ if (DEBUG_TIME)
204+ fprintf(tracefile, "%u ", (int) time(NULL));
205+ if (DEBUG_PID)
206+ fprintf(tracefile, "[%u] ", (int) getpid());
207+ if (DEBUG_SIG)
208+ fprintf(tracefile, "pending s:%d i:%d(supp:%d) ", pendingsig, intpending, suppressint);
209 vfprintf(tracefile, fmt, va);
210 }
211
212@@ -998,14 +1045,6 @@
213 shtree(n, 1, NULL, stdout);
214 }
215
216-#define TRACE(param) trace_printf param
217-#define TRACEV(param) trace_vprintf param
218-
219-#else
220-
221-#define TRACE(param)
222-#define TRACEV(param)
223-
224 #endif /* DEBUG */
225
226
227@@ -3779,7 +3818,7 @@
228 * NB: _not_ safe_waitpid, we need to detect EINTR */
229 pid = waitpid(-1, &status,
230 (doing_jobctl ? (wait_flags | WUNTRACED) : wait_flags));
231- TRACE(("wait returns pid=%d, status=0x%x\n", pid, status));
232+ TRACE(("wait returns pid=%d, status=0x%x, errno=%d(%s)\n", pid, status, errno, strerror(errno)));
233
234 if (pid <= 0) {
235 /* If we were doing blocking wait and (probably) got EINTR,
236@@ -5031,7 +5070,9 @@
237 if (newfd < 0) {
238 /* NTOFD/NFROMFD: copy redir->ndup.dupfd to fd */
239 if (redir->ndup.dupfd < 0) { /* "fd>&-" */
240- close(fd);
241+ /* Don't want to trigger debugging */
242+ if (fd != -1)
243+ close(fd);
244 } else {
245 copyfd(redir->ndup.dupfd, fd | COPYFD_EXACT);
246 }
247@@ -5084,7 +5125,7 @@
248 /*close(fd);*/
249 copyfd(copy, fd | COPYFD_EXACT);
250 }
251- close(copy);
252+ close(copy & ~COPYFD_RESTORE);
253 }
254 }
255 redirlist = rp->next;
256@@ -7871,20 +7912,30 @@
257 pendingsig = 0;
258 xbarrier();
259
260+ TRACE(("dotrap entered\n"));
261 for (i = 1, q = gotsig; i < NSIG; i++, q++) {
262 if (!*q)
263 continue;
264- *q = '\0';
265
266 p = trap[i];
267+ /* non-trapped SIGINT is handled separately by raise_interrupt,
268+ * don't upset it by resetting gotsig[SIGINT-1] */
269+ if (i == SIGINT && !p)
270+ continue;
271+
272+ TRACE(("sig %d is active, will run handler '%s'\n", i, p));
273+ *q = '\0';
274 if (!p)
275 continue;
276 skip = evalstring(p, SKIPEVAL);
277 exitstatus = savestatus;
278- if (skip)
279+ if (skip) {
280+ TRACE(("dotrap returns %d\n", skip));
281 return skip;
282+ }
283 }
284
285+ TRACE(("dotrap returns 0\n"));
286 return 0;
287 }
288
289@@ -7906,28 +7957,32 @@
290 static void
291 evaltree(union node *n, int flags)
292 {
293-
294 struct jmploc *volatile savehandler = exception_handler;
295 struct jmploc jmploc;
296 int checkexit = 0;
297 void (*evalfn)(union node *, int);
298 int status;
299+ int int_level;
300+
301+ SAVE_INT(int_level);
302
303 if (n == NULL) {
304 TRACE(("evaltree(NULL) called\n"));
305 goto out1;
306 }
307- TRACE(("pid %d, evaltree(%p: %d, %d) called\n",
308- getpid(), n, n->type, flags));
309+ TRACE(("evaltree(%p: %d, %d) called\n", n, n->type, flags));
310
311 exception_handler = &jmploc;
312 {
313 int err = setjmp(jmploc.loc);
314 if (err) {
315 /* if it was a signal, check for trap handlers */
316- if (exception == EXSIG)
317+ if (exception == EXSIG) {
318+ TRACE(("exception %d (EXSIG) in evaltree, err=%d\n", exception, err));
319 goto out;
320+ }
321 /* continue on the way out */
322+ TRACE(("exception %d in evaltree, propagating err=%d\n", exception, err));
323 exception_handler = savehandler;
324 longjmp(exception_handler->loc, err);
325 }
326@@ -8010,7 +8065,8 @@
327 if (exitstatus == 0) {
328 n = n->nif.ifpart;
329 goto evaln;
330- } else if (n->nif.elsepart) {
331+ }
332+ if (n->nif.elsepart) {
333 n = n->nif.elsepart;
334 goto evaln;
335 }
336@@ -8036,6 +8092,9 @@
337 exexit:
338 raise_exception(EXEXIT);
339 }
340+
341+ RESTORE_INT(int_level);
342+ TRACE(("leaving evaltree (no interrupts)\n"));
343 }
344
345 #if !defined(__alpha__) || (defined(__GNUC__) && __GNUC__ >= 3)
346@@ -8281,7 +8340,9 @@
347 if (prevfd >= 0)
348 close(prevfd);
349 prevfd = pip[0];
350- close(pip[1]);
351+ /* Don't want to trigger debugging */
352+ if (pip[1] != -1)
353+ close(pip[1]);
354 }
355 if (n->npipe.pipe_backgnd == 0) {
356 exitstatus = waitforjob(jp);
357@@ -8913,6 +8974,7 @@
358 if (forkshell(jp, cmd, FORK_FG) != 0) {
359 exitstatus = waitforjob(jp);
360 INT_ON;
361+ TRACE(("forked child exited with %d\n", exitstatus));
362 break;
363 }
364 FORCE_INT_ON;
365@@ -13640,7 +13702,7 @@
366 exception_handler = &jmploc;
367 #if DEBUG
368 opentrace();
369- trace_puts("Shell args: ");
370+ TRACE(("Shell args: "));
371 trace_puts_args(argv);
372 #endif
373 rootpid = getpid();
374@@ -13692,8 +13754,14 @@
375 }
376 state3:
377 state = 4;
378- if (minusc)
379+ if (minusc) {
380+ /* evalstring pushes parsefile stack.
381+ * Ensure we don't falsely claim that 0 (stdin)
382+ * is one of stacked source fds */
383+ if (!sflag)
384+ g_parsefile->fd = -1;
385 evalstring(minusc, 0);
386+ }
387
388 if (sflag || minusc == NULL) {
389 #if ENABLE_FEATURE_EDITING_SAVEHISTORY
390@@ -13720,14 +13788,6 @@
391 /* NOTREACHED */
392 }
393
394-#if DEBUG
395-const char *applet_name = "debug stuff usage";
396-int main(int argc, char **argv)
397-{
398- return ash_main(argc, argv);
399-}
400-#endif
401-
402
403 /*-
404 * Copyright (c) 1989, 1991, 1993, 1994
405diff -Naur busybox-1.13.3.orig/shell/hush.c busybox-1.13.3/shell/hush.c
406--- busybox-1.13.3.orig/shell/hush.c 2009-02-26 03:46:55.000000000 -0800
407+++ busybox-1.13.3/shell/hush.c 2009-03-28 08:25:12.522843973 -0700
408@@ -458,8 +458,11 @@
409 smallint fake_mode;
410 /* these three support $?, $#, and $1 */
411 smalluint last_return_code;
412- char **global_argv;
413+ /* is global_argv and global_argv[1..n] malloced? (note: not [0]) */
414+ smalluint global_args_malloced;
415+ /* how many non-NULL argv's we have. NB: $# + 1 */
416 int global_argc;
417+ char **global_argv;
418 #if ENABLE_HUSH_LOOPS
419 unsigned depth_break_continue;
420 unsigned depth_of_loop;
421@@ -633,7 +636,7 @@
422 return dst;
423 }
424
425-static char **add_strings_to_strings(char **strings, char **add)
426+static char **add_strings_to_strings(char **strings, char **add, int need_to_dup)
427 {
428 int i;
429 unsigned count1;
430@@ -658,7 +661,7 @@
431 v[count1 + count2] = NULL;
432 i = count2;
433 while (--i >= 0)
434- v[count1 + i] = add[i];
435+ v[count1 + i] = (need_to_dup ? xstrdup(add[i]) : add[i]);
436 return v;
437 }
438
439@@ -667,7 +670,7 @@
440 char *v[2];
441 v[0] = add;
442 v[1] = NULL;
443- return add_strings_to_strings(strings, v);
444+ return add_strings_to_strings(strings, v, /*dup:*/ 0);
445 }
446
447 static void putenv_all(char **strings)
448@@ -1213,8 +1216,13 @@
449 * Otherwise, just finish current list[] and start new */
450 static int o_save_ptr(o_string *o, int n)
451 {
452- if (o->o_glob)
453- return o_glob(o, n); /* o_save_ptr_helper is inside */
454+ if (o->o_glob) { /* if globbing is requested */
455+ /* If o->has_empty_slot, list[n] was already globbed
456+ * (if it was requested back then when it was filled)
457+ * so don't do that again! */
458+ if (!o->has_empty_slot)
459+ return o_glob(o, n); /* o_save_ptr_helper is inside */
460+ }
461 return o_save_ptr_helper(o, n);
462 }
463
464@@ -4279,6 +4287,11 @@
465 switch (opt) {
466 case 'c':
467 G.global_argv = argv + optind;
468+ if (!argv[optind]) {
469+ /* -c 'script' (no params): prevent empty $0 */
470+ *--G.global_argv = argv[0];
471+ optind--;
472+ } /* else -c 'script' PAR0 PAR1: $0 is PAR0 */
473 G.global_argc = argc - optind;
474 opt = parse_and_run_string(optarg, 0 /* parse_flag */);
475 goto final_return;
476@@ -4639,17 +4652,68 @@
477 return set_local_var(string, 0);
478 }
479
480-/* built-in 'set [VAR=value]' handler */
481+/* built-in 'set' handler
482+ * SUSv3 says:
483+ * set [-abCefmnuvx] [-h] [-o option] [argument...]
484+ * set [+abCefmnuvx] [+h] [+o option] [argument...]
485+ * set -- [argument...]
486+ * set -o
487+ * set +o
488+ * Implementations shall support the options in both their hyphen and
489+ * plus-sign forms. These options can also be specified as options to sh.
490+ * Examples:
491+ * Write out all variables and their values: set
492+ * Set $1, $2, and $3 and set "$#" to 3: set c a b
493+ * Turn on the -x and -v options: set -xv
494+ * Unset all positional parameters: set --
495+ * Set $1 to the value of x, even if it begins with '-' or '+': set -- "$x"
496+ * Set the positional parameters to the expansion of x, even if x expands
497+ * with a leading '-' or '+': set -- $x
498+ *
499+ * So far, we only support "set -- [argument...]" by ignoring all options
500+ * (also, "-o option" will be mishandled by taking "option" as parameter #1).
501+ */
502 static int builtin_set(char **argv)
503 {
504- char *temp = argv[1];
505 struct variable *e;
506+ char **pp;
507+ char *arg = *++argv;
508
509- if (temp == NULL)
510+ if (arg == NULL) {
511 for (e = G.top_var; e; e = e->next)
512 puts(e->varstr);
513- else
514- set_local_var(xstrdup(temp), 0);
515+ } else {
516+ /* NB: G.global_argv[0] ($0) is never freed/changed */
517+
518+ if (G.global_args_malloced) {
519+ pp = G.global_argv;
520+ while (*++pp)
521+ free(*pp);
522+ G.global_argv[1] = NULL;
523+ } else {
524+ G.global_args_malloced = 1;
525+ pp = xzalloc(sizeof(pp[0]) * 2);
526+ pp[0] = G.global_argv[0]; /* retain $0 */
527+ G.global_argv = pp;
528+ }
529+ do {
530+ if (arg[0] == '+')
531+ continue;
532+ if (arg[0] != '-')
533+ break;
534+ if (arg[1] == '-' && arg[2] == '\0') {
535+ argv++;
536+ break;
537+ }
538+ } while ((arg = *++argv) != NULL);
539+ /* Now argv[0] is 1st argument */
540+
541+ /* This realloc's G.global_argv */
542+ G.global_argv = pp = add_strings_to_strings(G.global_argv, argv, /*dup:*/ 1);
543+ G.global_argc = 1;
544+ while (*++pp)
545+ G.global_argc++;
546+ }
547
548 return EXIT_SUCCESS;
549 }
550@@ -4661,9 +4725,14 @@
551 n = atoi(argv[1]);
552 }
553 if (n >= 0 && n < G.global_argc) {
554- G.global_argv[n] = G.global_argv[0];
555+ if (G.global_args_malloced) {
556+ int m = 1;
557+ while (m <= n)
558+ free(G.global_argv[m++]);
559+ }
560 G.global_argc -= n;
561- G.global_argv += n;
562+ memmove(&G.global_argv[1], &G.global_argv[n+1],
563+ G.global_argc * sizeof(G.global_argv[0]));
564 return EXIT_SUCCESS;
565 }
566 return EXIT_FAILURE;
567diff -Naur busybox-1.13.3.orig/shell/hush_test/hush-parsing/starquoted2.right busybox-1.13.3/shell/hush_test/hush-parsing/starquoted2.right
568--- busybox-1.13.3.orig/shell/hush_test/hush-parsing/starquoted2.right 2009-02-26 03:46:52.000000000 -0800
569+++ busybox-1.13.3/shell/hush_test/hush-parsing/starquoted2.right 2009-03-28 08:25:12.526845928 -0700
570@@ -1,2 +1,3 @@
571 Should be printed
572 Should be printed
573+Empty:
574diff -Naur busybox-1.13.3.orig/shell/hush_test/hush-parsing/starquoted2.tests busybox-1.13.3/shell/hush_test/hush-parsing/starquoted2.tests
575--- busybox-1.13.3.orig/shell/hush_test/hush-parsing/starquoted2.tests 2009-02-26 03:46:52.000000000 -0800
576+++ busybox-1.13.3/shell/hush_test/hush-parsing/starquoted2.tests 2009-03-28 08:25:12.526845928 -0700
577@@ -12,3 +12,6 @@
578 for a in """$@"; do echo Should not be printed; done
579 for a in """$@"''"$@"''; do echo Should not be printed; done
580 for a in ""; do echo Should be printed; done
581+
582+# Bug 207: "$@" expands to nothing, and we erroneously glob "%s\\n" twice:
583+printf "Empty:%s\\n" "$@"
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