Revision: 1334
http://vcs.pcre.org/viewvc?view=rev&revision=1334
Author: ph10
Date: 2013-05-15 17:53:18 +0100 (Wed, 15 May 2013)
Log Message:
-----------
Fix segfault when pcre_dfa_exec() is called with an output vector of length
less than 2.
Modified Paths:
--------------
code/trunk/ChangeLog
code/trunk/pcre_dfa_exec.c
code/trunk/pcretest.c
code/trunk/testdata/testinput8
code/trunk/testdata/testoutput10
code/trunk/testdata/testoutput8
code/trunk/testdata/testoutput9
Modified: code/trunk/ChangeLog
===================================================================
--- code/trunk/ChangeLog 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/ChangeLog 2013-05-15 16:53:18 UTC (rev 1334)
@@ -158,10 +158,13 @@
42. Data lines longer than 65536 caused pcretest to crash.
-44. Clarified the data type for length and startoffset arguments for pcre_exec
+43. Clarified the data type for length and startoffset arguments for pcre_exec
and pcre_dfa_exec in the function-specific man pages, where they were
explicitly stated to be in bytes, never having been updated. I also added
some clarification to the pcreapi man page.
+
+44. A call to pcre_dfa_exec() with an output vector size less than 2 caused
+ a segmentation fault.
Version 8.32 30-November-2012
Modified: code/trunk/pcre_dfa_exec.c
===================================================================
--- code/trunk/pcre_dfa_exec.c 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/pcre_dfa_exec.c 2013-05-15 16:53:18 UTC (rev 1334)
@@ -636,7 +636,7 @@
const pcre_uchar *code;
int state_offset = current_state->offset;
int codevalue, rrc;
- unsigned int count;
+ int count;
#ifdef PCRE_DEBUG
printf ("%.*sProcessing state %d c=", rlevel*2-2, SP, state_offset);
@@ -1255,7 +1255,7 @@
(d != OP_ANY || !IS_NEWLINE(ptr)) &&
((ctypes[c] & toptable1[d]) ^ toptable2[d]) != 0))
{
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW(state_offset + 1 + IMM2_SIZE + 1, 0); }
else
{ ADD_NEW(state_offset, count); }
@@ -1289,7 +1289,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW(state_offset + 2 + IMM2_SIZE, 0); }
else
{ ADD_NEW(state_offset, count); }
@@ -1903,7 +1903,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW(state_offset + 1 + IMM2_SIZE + 3, 0); }
else
{ ADD_NEW(state_offset, count); }
@@ -1942,7 +1942,7 @@
}
if (nptr >= end_subject && (md->moptions & PCRE_PARTIAL_HARD) != 0)
reset_could_continue = TRUE;
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
else
{ ADD_NEW_DATA(-state_offset, count, ncount); }
@@ -1984,7 +1984,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, ncount); }
else
{ ADD_NEW_DATA(-state_offset, count, ncount); }
@@ -2024,7 +2024,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
else
{ ADD_NEW_DATA(-state_offset, count, 0); }
@@ -2061,7 +2061,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW_DATA(-(state_offset + 2 + IMM2_SIZE), 0, 0); }
else
{ ADD_NEW_DATA(-state_offset, count, 0); }
@@ -2431,7 +2431,7 @@
}
if ((c == d || c == otherd) == (codevalue < OP_NOTSTAR))
{
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
else
{ ADD_NEW(state_offset, count); }
@@ -2480,7 +2480,7 @@
active_count--; /* Remove non-match possibility */
next_active_state--;
}
- if (++count >= GET2(code, 1))
+ if (++count >= (int)GET2(code, 1))
{ ADD_NEW(state_offset + dlen + 1 + IMM2_SIZE, 0); }
else
{ ADD_NEW(state_offset, count); }
@@ -2553,11 +2553,11 @@
case OP_CRRANGE:
case OP_CRMINRANGE:
count = current_state->count; /* Already matched */
- if (count >= GET2(ecode, 1))
+ if (count >= (int)GET2(ecode, 1))
{ ADD_ACTIVE(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
if (isinclass)
{
- unsigned int max = GET2(ecode, 1 + IMM2_SIZE);
+ int max = (int)GET2(ecode, 1 + IMM2_SIZE);
if (++count >= max && max != 0) /* Max 0 => no limit */
{ ADD_NEW(next_state_offset + 1 + 2 * IMM2_SIZE, 0); }
else
Modified: code/trunk/pcretest.c
===================================================================
--- code/trunk/pcretest.c 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/pcretest.c 2013-05-15 16:53:18 UTC (rev 1334)
@@ -5043,7 +5043,7 @@
DFA_WS_DIMENSION);
if (count == 0)
{
- fprintf(outfile, "Matched, but too many subsidiary matches\n");
+ fprintf(outfile, "Matched, but offsets vector is too small to show all matches\n");
count = use_size_offsets/2;
}
}
Modified: code/trunk/testdata/testinput8
===================================================================
--- code/trunk/testdata/testinput8 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/testdata/testinput8 2013-05-15 16:53:18 UTC (rev 1334)
@@ -4798,4 +4798,7 @@
xxxxxxxxabcd
xx\xa0xxxxxabcd
+/abcd/
+ abcd\O0
+
/-- End of testinput8 --/
Modified: code/trunk/testdata/testoutput10
===================================================================
--- code/trunk/testdata/testoutput10 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/testdata/testoutput10 2013-05-15 16:53:18 UTC (rev 1334)
@@ -813,7 +813,7 @@
11111111111111111111111111111111111111111111111111111111111111111111111
No match
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -841,7 +841,7 @@
11111111111111111111111111111111111111111111111111111111111111111111111
No match
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -869,7 +869,7 @@
11111111111111111111111111111111111111111111111111111111111111111111111
No match
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -897,7 +897,7 @@
11111111111111111111111111111111111111111111111111111111111111111111111
No match
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -925,7 +925,7 @@
11111111111111111111111111111111111111111111111111111111111111111111111
No match
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Modified: code/trunk/testdata/testoutput8
===================================================================
--- code/trunk/testdata/testoutput8 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/testdata/testoutput8 2013-05-15 16:53:18 UTC (rev 1334)
@@ -49,7 +49,7 @@
16: a
17:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -3260,7 +3260,7 @@
/(.*)(\d*)/
I have 2 numbers: 53147
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: I have 2 numbers: 53147
1: I have 2 numbers: 5314
2: I have 2 numbers: 531
@@ -3295,7 +3295,7 @@
/(.*?)(\d*)/
I have 2 numbers: 53147
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: I have 2 numbers: 53147
1: I have 2 numbers: 5314
2: I have 2 numbers: 531
@@ -7848,7 +7848,7 @@
/(a+)/
\O6aaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaa
1: aaa
2: aa
@@ -8016,4 +8016,8 @@
0: xx\xa0xxxxxabcd
1: xx\xa0xxxxxabc
+/abcd/
+ abcd\O0
+Matched, but offsets vector is too small to show all matches
+
/-- End of testinput8 --/
Modified: code/trunk/testdata/testoutput9
===================================================================
--- code/trunk/testdata/testoutput9 2013-05-14 14:27:13 UTC (rev 1333)
+++ code/trunk/testdata/testoutput9 2013-05-15 16:53:18 UTC (rev 1334)
@@ -434,7 +434,7 @@
/\D*/8
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
1: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
2: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
@@ -460,7 +460,7 @@
/\D*/8
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-Matched, but too many subsidiary matches
+Matched, but offsets vector is too small to show all matches
0: \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}
1: \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}
2: \x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}\x{100}
