summaryrefslogtreecommitdiff
path: root/debian/patches/bash32-014.dpatch
blob: 2abc259b9e089e3229a0dfb2e09bcc18523c3b09 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
#! /bin/sh -e

if [ $# -eq 3 -a "$2" = '-d' ]; then
    pdir="-d $3"
elif [ $# -ne 1 ]; then
    echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
    exit 1
fi
case "$1" in
    -patch) patch $pdir -f --no-backup-if-mismatch -p0 < $0;;
    -unpatch) patch $pdir -f --no-backup-if-mismatch -R -p0 < $0;;
    *)
	echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
	exit 1
esac
exit 0

# DP: bash-3.2 upstream patch bash32-014

			     BASH PATCH REPORT
			     =================

Bash-Release: 3.2
Patch-ID: bash32-014

Bug-Reported-by: Brett Stahlman <brettstahlman@comcast.net>
Bug-Reference-ID: <000701c72d29$a227e0e0$5ec7cf47@computerroom>
Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2006-12/msg00065.html

Bug-Description:

Bash mishandles word splitting under certain circumstances when IFS is
null (IFS=).  Constructs affected include ${param/pat/sub} and others
when expanding arrays (array[@]).

Patch:

*** ../bash-3.2-patched/array.c	Wed Jun  1 16:39:22 2005
--- array.c	Mon Jan 15 22:58:00 2007
***************
*** 121,125 ****
  }
  
- #ifdef INCLUDE_UNUSED
  /*
   * Make and return a new array composed of the elements in array A from
--- 121,124 ----
***************
*** 142,146 ****
  		n = array_create_element (element_index(p), element_value(p));
  		ADD_BEFORE(a->head, n);
! 		mi = element_index(ae);
  	}
  	a->num_elements = i;
--- 141,145 ----
  		n = array_create_element (element_index(p), element_value(p));
  		ADD_BEFORE(a->head, n);
! 		mi = element_index(n);
  	}
  	a->num_elements = i;
***************
*** 148,152 ****
  	return a;
  }
- #endif
  
  /*
--- 147,150 ----
***************
*** 301,304 ****
--- 299,319 ----
  }
  
+ ARRAY	*
+ array_quote_escapes(array)
+ ARRAY	*array;
+ {
+ 	ARRAY_ELEMENT	*a;
+ 	char	*t;
+ 
+ 	if (array == 0 || array_head(array) == 0 || array_empty(array))
+ 		return (ARRAY *)NULL;
+ 	for (a = element_forw(array->head); a != array->head; a = element_forw(a)) {
+ 		t = quote_escapes (a->value);
+ 		FREE(a->value);
+ 		a->value = t;
+ 	}
+ 	return array;
+ }
+ 
  /*
   * Return a string whose elements are the members of array A beginning at
***************
*** 312,318 ****
  int	starsub, quoted;
  {
  	ARRAY_ELEMENT	*h, *p;
  	arrayind_t	i;
! 	char		*ifs, sep[2];
  
  	p = a ? array_head (a) : 0;
--- 327,334 ----
  int	starsub, quoted;
  {
+ 	ARRAY		*a2;
  	ARRAY_ELEMENT	*h, *p;
  	arrayind_t	i;
! 	char		*ifs, sep[2], *t;
  
  	p = a ? array_head (a) : 0;
***************
*** 337,340 ****
--- 353,363 ----
  		;
  
+ 	a2 = array_slice(a, h, p);
+ 
+ 	if (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT))
+ 		array_quote(a2);
+ 	else
+ 		array_quote_escapes(a2);
+ 
  	if (starsub && (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT))) {
  		ifs = getifs();
***************
*** 344,348 ****
  	sep[1] = '\0';
  
! 	return (array_to_string_internal (h, p, sep, quoted));
  }
  
--- 367,374 ----
  	sep[1] = '\0';
  
! 	t = array_to_string (a2, sep, 0);
! 	array_dispose(a2);
! 
! 	return t;
  }
  
***************
*** 368,372 ****
  
  	if (mflags & MATCH_QUOTED)
! 		array_quote (a2);
  	if (mflags & MATCH_STARSUB) {
  		ifs = getifs();
--- 394,400 ----
  
  	if (mflags & MATCH_QUOTED)
! 		array_quote(a2);
! 	else
! 		array_quote_escapes(a2);
  	if (mflags & MATCH_STARSUB) {
  		ifs = getifs();
*** ../bash-3.2-patched/array.h	Sun Jun  1 15:50:30 2003
--- array.h	Mon Jan 15 22:35:35 2007
***************
*** 56,59 ****
--- 56,60 ----
  extern int	array_shift_element __P((ARRAY *, char *));
  extern ARRAY	*array_quote __P((ARRAY *));
+ extern ARRAY	*array_quote_escapes __P((ARRAY *));
  
  extern char	*array_subrange __P((ARRAY *, arrayind_t, arrayind_t, int, int));
*** ../bash-3.2-patched/subst.c	Fri Mar  2 16:20:50 2007
--- subst.c	Tue Mar  6 11:40:55 2007
***************
*** 1888,1892 ****
--- 1889,1899 ----
  #endif
  
+   /* XXX -- why call quote_list if ifs == 0?  we can get away without doing
+      it now that quote_escapes quotes spaces */
+ #if 0
    tlist = ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) || (ifs && *ifs == 0))
+ #else
+   tlist = (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))
+ #endif
  		? quote_list (list)
  		: list_quote_escapes (list);
***************
*** 2922,2926 ****
  /* Quote escape characters in string s, but no other characters.  This is
     used to protect CTLESC and CTLNUL in variable values from the rest of
!    the word expansion process after the variable is expanded. */
  char *
  quote_escapes (string)
--- 2935,2944 ----
  /* Quote escape characters in string s, but no other characters.  This is
     used to protect CTLESC and CTLNUL in variable values from the rest of
!    the word expansion process after the variable is expanded.  If IFS is
!    null, we quote spaces as well, just in case we split on spaces later
!    (in the case of unquoted $@, we will eventually attempt to split the
!    entire word on spaces).  Corresponding code exists in dequote_escapes.
!    Even if we don't end up splitting on spaces, quoting spaces is not a
!    problem. */
  char *
  quote_escapes (string)
***************
*** 2930,2933 ****
--- 2948,2952 ----
    size_t slen;
    char *result, *send;
+   int quote_spaces;
    DECLARE_MBSTATE; 
  
***************
*** 2935,2938 ****
--- 2954,2958 ----
    send = string + slen;
  
+   quote_spaces = (ifs_value && *ifs_value == 0);
    t = result = (char *)xmalloc ((slen * 2) + 1);
    s = string;
***************
*** 2940,2944 ****
    while (*s)
      {
!       if (*s == CTLESC || *s == CTLNUL)
  	*t++ = CTLESC;
        COPY_CHAR_P (t, s, send);
--- 2960,2964 ----
    while (*s)
      {
!       if (*s == CTLESC || *s == CTLNUL || (quote_spaces && *s == ' '))
  	*t++ = CTLESC;
        COPY_CHAR_P (t, s, send);
***************
*** 2982,2985 ****
--- 3002,3006 ----
    size_t slen;
    char *result, *send;
+   int quote_spaces;
    DECLARE_MBSTATE;
  
***************
*** 2996,3002 ****
      return (strcpy (result, s));
  
    while (*s)
      {
!       if (*s == CTLESC && (s[1] == CTLESC || s[1] == CTLNUL))
  	{
  	  s++;
--- 3017,3024 ----
      return (strcpy (result, s));
  
+   quote_spaces = (ifs_value && *ifs_value == 0);
    while (*s)
      {
!       if (*s == CTLESC && (s[1] == CTLESC || s[1] == CTLNUL || (quote_spaces && s[1] == ' ')))
  	{
  	  s++;
***************
*** 4462,4466 ****
        RESIZE_MALLOCED_BUFFER (istring, istring_index, 2, istring_size, DEFAULT_ARRAY_SIZE);
  
!       if ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) || c == CTLESC || c == CTLNUL)
  	istring[istring_index++] = CTLESC;
  
--- 4498,4510 ----
        RESIZE_MALLOCED_BUFFER (istring, istring_index, 2, istring_size, DEFAULT_ARRAY_SIZE);
  
!       /* This is essentially quote_string inline */
!       if ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) /* || c == CTLESC || c == CTLNUL */)
! 	istring[istring_index++] = CTLESC;
!       /* Escape CTLESC and CTLNUL in the output to protect those characters
! 	 from the rest of the word expansions (word splitting and globbing.)
! 	 This is essentially quote_escapes inline. */
!       else if (c == CTLESC)
! 	istring[istring_index++] = CTLESC;
!       else if (c == CTLNUL || (c == ' ' && (ifs_value && *ifs_value == 0)))
  	istring[istring_index++] = CTLESC;
  
***************
*** 5552,5555 ****
--- 5610,5616 ----
  	 rely on array_subrange to understand how to deal with them). */
        tt = array_subrange (array_cell (v), e1, e2, starsub, quoted);
+ #if 0
+       /* array_subrange now calls array_quote_escapes as appropriate, so the
+ 	 caller no longer needs to. */
        if ((quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT)) == 0)
  	{
***************
*** 5558,5561 ****
--- 5619,5623 ----
  	}
        else
+ #endif
  	temp = tt;
        break;
***************
*** 5808,5811 ****
--- 5870,5876 ----
      case VT_ARRAYVAR:
        temp = array_patsub (array_cell (v), p, rep, mflags);
+ #if 0
+       /* Don't need to do this anymore; array_patsub calls array_quote_escapes
+ 	 as appropriate before adding the space separators. */
        if (temp && (mflags & MATCH_QUOTED) == 0)
  	{
***************
*** 5814,5817 ****
--- 5879,5883 ----
  	  temp = tt;
  	}
+ #endif
        break;
  #endif
*** ../bash-3.2/patchlevel.h	Thu Apr 13 08:31:04 2006
--- patchlevel.h	Mon Oct 16 14:22:54 2006
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 13
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 14
  
  #endif /* _PATCHLEVEL_H_ */