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Add "framesize" to pcre2test to display pcre2_match() frame size, using the new 

PCRE2_INFO_FRAMESIZE option for pcre2_pattern_info().
This commit is contained in:
Philip.Hazel 2017-03-16 17:55:55 +00:00
parent d7da2dcb37
commit ae37c6e886
6 changed files with 65 additions and 33 deletions
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4
ChangeLog
View File

@ -52,6 +52,10 @@ undefined actions (often a segmentation fault) could occur, depending on what
other options were set. An example assertion is (?<!\1(abc)) where the
reference \1 precedes the group (abc). This fixes oss-fuzz issue 865.
6. Added the PCRE2_INFO_FRAMESIZE item to pcre2_pattern_info() and arranged for
pcre2test to use it to output the frame size when the "framesize" modifier is
given.
Version 10.23 14-February-2017
------------------------------

2
RunTest
View File

@ -463,7 +463,7 @@ for bmode in "$test8" "$test16" "$test32"; do
if [ $do0 = yes ] ; then
echo $title0
echo '/abc/jit,memory' >testSinput
echo '/abc/jit,memory,framesize' >testSinput
echo ' abc' >>testSinput
echo '' >testtry
checkspecial '-C'

1
src/pcre2.h
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@ -295,6 +295,7 @@ numbers must not be changed. */
#define PCRE2_INFO_RECURSIONLIMIT 21 /* Obsolete synonym */
#define PCRE2_INFO_SIZE 22
#define PCRE2_INFO_HASBACKSLASHC 23
#define PCRE2_INFO_FRAMESIZE 24
/* Request types for pcre2_config(). */

1
src/pcre2.h.in
View File

@ -295,6 +295,7 @@ numbers must not be changed. */
#define PCRE2_INFO_RECURSIONLIMIT 21 /* Obsolete synonym */
#define PCRE2_INFO_SIZE 22
#define PCRE2_INFO_HASBACKSLASHC 23
#define PCRE2_INFO_FRAMESIZE 24
/* Request types for pcre2_config(). */

6
src/pcre2_pattern_info.c
View File

@ -97,6 +97,7 @@ if (where == NULL) /* Requests field length */
case PCRE2_INFO_JITSIZE:
case PCRE2_INFO_SIZE:
case PCRE2_INFO_FRAMESIZE:
return sizeof(size_t);
case PCRE2_INFO_NAMETABLE:
@ -157,6 +158,11 @@ switch(what)
&(re->start_bitmap[0]) : NULL;
break;
case PCRE2_INFO_FRAMESIZE:
*((size_t *)where) = sizeof(heapframe) +
((re->top_bracket - 1) * 2 * sizeof(PCRE2_SIZE));
break;
case PCRE2_INFO_HASBACKSLASHC:
*((uint32_t *)where) = (re->flags & PCRE2_HASBKC) != 0;
break;

84
src/pcre2test.c
View File

@ -422,25 +422,26 @@ so many of them that they are split into two fields. */
#define CTL_DFA 0x00000200u
#define CTL_EXPAND 0x00000400u
#define CTL_FINDLIMITS 0x00000800u
#define CTL_FULLBINCODE 0x00001000u
#define CTL_GETALL 0x00002000u
#define CTL_GLOBAL 0x00004000u
#define CTL_HEXPAT 0x00008000u /* Same word as USE_LENGTH */
#define CTL_INFO 0x00010000u
#define CTL_JITFAST 0x00020000u
#define CTL_JITVERIFY 0x00040000u
#define CTL_MARK 0x00080000u
#define CTL_MEMORY 0x00100000u
#define CTL_NULLCONTEXT 0x00200000u
#define CTL_POSIX 0x00400000u
#define CTL_POSIX_NOSUB 0x00800000u
#define CTL_PUSH 0x01000000u /* These three must be */
#define CTL_PUSHCOPY 0x02000000u /* all in the same */
#define CTL_PUSHTABLESCOPY 0x04000000u /* word. */
#define CTL_STARTCHAR 0x08000000u
#define CTL_USE_LENGTH 0x10000000u /* Same word as HEXPAT */
#define CTL_UTF8_INPUT 0x20000000u
#define CTL_ZERO_TERMINATE 0x40000000u
#define CTL_FRAMESIZE 0x00001000u
#define CTL_FULLBINCODE 0x00002000u
#define CTL_GETALL 0x00004000u
#define CTL_GLOBAL 0x00008000u
#define CTL_HEXPAT 0x00010000u /* Same word as USE_LENGTH */
#define CTL_INFO 0x00020000u
#define CTL_JITFAST 0x00040000u
#define CTL_JITVERIFY 0x00080000u
#define CTL_MARK 0x00100000u
#define CTL_MEMORY 0x00200000u
#define CTL_NULLCONTEXT 0x00400000u
#define CTL_POSIX 0x00800000u
#define CTL_POSIX_NOSUB 0x01000000u
#define CTL_PUSH 0x02000000u /* These three must be */
#define CTL_PUSHCOPY 0x04000000u /* all in the same */
#define CTL_PUSHTABLESCOPY 0x08000000u /* word. */
#define CTL_STARTCHAR 0x10000000u
#define CTL_USE_LENGTH 0x20000000u /* Same word as HEXPAT */
#define CTL_UTF8_INPUT 0x40000000u
#define CTL_ZERO_TERMINATE 0x80000000u
/* Second control word */
@ -466,6 +467,7 @@ data line. */
CTL_ALLCAPTURES|\
CTL_ALLUSEDTEXT|\
CTL_ALTGLOBAL|\
CTL_FRAMESIZE|\
CTL_GLOBAL|\
CTL_MARK|\
CTL_MEMORY|\
@ -575,6 +577,7 @@ static modstruct modlist[] = {
{ "extended", MOD_PATP, MOD_OPT, PCRE2_EXTENDED, PO(options) },
{ "find_limits", MOD_DAT, MOD_CTL, CTL_FINDLIMITS, DO(control) },
{ "firstline", MOD_PAT, MOD_OPT, PCRE2_FIRSTLINE, PO(options) },
{ "framesize", MOD_PD, MOD_CTL, CTL_FRAMESIZE, PD(control) },
{ "fullbincode", MOD_PAT, MOD_CTL, CTL_FULLBINCODE, PO(control) },
{ "get", MOD_DAT, MOD_NN, DO(get_numbers), DO(get_names) },
{ "getall", MOD_DAT, MOD_CTL, CTL_GETALL, DO(control) },
@ -663,8 +666,8 @@ static modstruct modlist[] = {
#define PUSH_SUPPORTED_COMPILE_CONTROLS ( \
CTL_BINCODE|CTL_CALLOUT_INFO|CTL_FULLBINCODE|CTL_HEXPAT|CTL_INFO| \
CTL_JITVERIFY|CTL_MEMORY|CTL_PUSH|CTL_PUSHCOPY|CTL_PUSHTABLESCOPY| \
CTL_USE_LENGTH)
CTL_JITVERIFY|CTL_MEMORY|CTL_FRAMESIZE|CTL_PUSH|CTL_PUSHCOPY| \
CTL_PUSHTABLESCOPY|CTL_USE_LENGTH)
#define PUSH_SUPPORTED_COMPILE_CONTROLS2 (CTL_BSR_SET|CTL_NL_SET)
@ -1366,7 +1369,7 @@ are supported. */
(test_mode == PCRE8_MODE && G(x,8)->f r (y)) || \
(test_mode == PCRE16_MODE && G(x,16)->f r (y)) || \
(test_mode == PCRE32_MODE && G(x,32)->f r (y)))
/* ----- Two out of three modes are supported ----- */
@ -1775,7 +1778,7 @@ the three different cases. */
#define TESTFLD(x,f,r,y) ( \
(test_mode == G(G(PCRE,BITONE),_MODE) && G(x,BITONE)->f r (y)) || \
(test_mode == G(G(PCRE,BITTWO),_MODE) && G(x,BITTWO)->f r (y)))
#endif /* Two out of three modes */
@ -3701,7 +3704,7 @@ Returns: nothing
static void
show_controls(uint32_t controls, uint32_t controls2, const char *before)
{
fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
before,
((controls & CTL_AFTERTEXT) != 0)? " aftertext" : "",
((controls & CTL_ALLAFTERTEXT) != 0)? " allaftertext" : "",
@ -3716,6 +3719,7 @@ fprintf(outfile, "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s
((controls & CTL_DFA) != 0)? " dfa" : "",
((controls & CTL_EXPAND) != 0)? " expand" : "",
((controls & CTL_FINDLIMITS) != 0)? " find_limits" : "",
((controls & CTL_FRAMESIZE) != 0)? " framesize" : "",
((controls & CTL_FULLBINCODE) != 0)? " fullbincode" : "",
((controls & CTL_GETALL) != 0)? " getall" : "",
((controls & CTL_GLOBAL) != 0)? " global" : "",
@ -3859,6 +3863,20 @@ if (pat_patctl.jit != 0)
/*************************************************
* Show frame size info for a pattern *
*************************************************/
static void
show_framesize(void)
{
size_t frame_size;
(void)pattern_info(PCRE2_INFO_FRAMESIZE, &frame_size, FALSE);
fprintf(outfile, "Frame size for pcre2_match(): %d\n", (int)frame_size);
}
/*************************************************
* Callback function for callout enumeration *
*************************************************/
@ -4414,6 +4432,7 @@ switch(cmd)
PCRE2_JIT_COMPILE(jitrc, compiled_code, pat_patctl.jit);
}
if ((pat_patctl.control & CTL_MEMORY) != 0) show_memory_info();
if ((pat_patctl.control & CTL_FRAMESIZE) != 0) show_framesize();
if ((pat_patctl.control & CTL_ANYINFO) != 0)
{
rc = show_pattern_info();
@ -5182,6 +5201,7 @@ if ((pat_patctl.control2 & CTL_NL_SET) != 0)
/* Output code size and other information if requested. */
if ((pat_patctl.control & CTL_MEMORY) != 0) show_memory_info();
if ((pat_patctl.control & CTL_FRAMESIZE) != 0) show_framesize();
if ((pat_patctl.control & CTL_ANYINFO) != 0)
{
int rc = show_pattern_info();
@ -6149,16 +6169,16 @@ if ((pat_patctl.control & CTL_POSIX) != 0)
if (msg[0] == 0) fprintf(outfile, "\n");
if (dat_datctl.oveccount > 0)
{
{
pmatch = (regmatch_t *)malloc(sizeof(regmatch_t) * dat_datctl.oveccount);
if (pmatch == NULL)
{
fprintf(outfile, "** Failed to get memory for recording matching "
"information (size set = %du)\n", dat_datctl.oveccount);
return PR_OK;
}
}
return PR_OK;
}
}
if ((dat_datctl.options & PCRE2_NOTBOL) != 0) eflags |= REG_NOTBOL;
if ((dat_datctl.options & PCRE2_NOTEOL) != 0) eflags |= REG_NOTEOL;
if ((dat_datctl.options & PCRE2_NOTEMPTY) != 0) eflags |= REG_NOTEMPTY;
@ -6298,9 +6318,9 @@ if (CASTVAR(void *, match_data) == NULL)
{
fprintf(outfile, "** Failed to get memory for recording matching "
"information (size requested: %d)\n", dat_datctl.oveccount);
max_oveccount = 0;
return PR_OK;
}
max_oveccount = 0;
return PR_OK;
}
/* Replacement processing is ignored for DFA matching. */