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remove volatile qualifier from OID code

This commit is contained in:
Lev Walkin 2012-09-03 00:48:45 -07:00
parent e09f9f1b4b
commit f59271171f
2 changed files with 82 additions and 40 deletions
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100
skeletons/OBJECT_IDENTIFIER.c
View File

@ -3,6 +3,7 @@
* Redistribution and modifications are permitted subject to BSD license.
*/
#include <asn_internal.h>
#include <INTEGER.h>
#include <OBJECT_IDENTIFIER.h>
#include <OCTET_STRING.h>
#include <limits.h> /* for CHAR_BIT */
@ -649,12 +650,13 @@ OBJECT_IDENTIFIER_parse_arcs(const char *oid_text, ssize_t oid_txt_length,
long *arcs, unsigned int arcs_slots, const char **opt_oid_text_end) {
unsigned int arcs_count = 0;
const char *oid_end;
long value = 0;
const char *value_start;
enum {
ST_SKIPSPACE,
ST_LEADSPACE,
ST_TAILSPACE,
ST_WAITDIGITS, /* Next character is expected to be a digit */
ST_DIGITS
} state = ST_SKIPSPACE;
ST_DIGITS /* INVARIANT: value_start != 0 in this state */
} state = ST_LEADSPACE;
if(!oid_text || oid_txt_length < -1 || (arcs_slots && !arcs)) {
if(opt_oid_text_end) *opt_oid_text_end = oid_text;
@ -665,42 +667,70 @@ OBJECT_IDENTIFIER_parse_arcs(const char *oid_text, ssize_t oid_txt_length,
if(oid_txt_length == -1)
oid_txt_length = strlen(oid_text);
#define _OID_CAPTURE_ARC(value_start, oid_text) do { \
long value; \
switch(asn_strtol(value_start, oid_text, &value)) { \
case ASN_STRTOL_OK: \
if(arcs_count < arcs_slots) \
arcs[arcs_count] = value; \
arcs_count++; \
break; \
case ASN_STRTOL_ERROR_RANGE: \
if(opt_oid_text_end) \
*opt_oid_text_end = oid_text; \
errno = ERANGE; \
return -1; \
case ASN_STRTOL_ERROR_INVAL: \
if(opt_oid_text_end) \
*opt_oid_text_end = oid_text; \
errno = EINVAL; \
return -1; \
} \
} while(0)
for(oid_end = oid_text + oid_txt_length; oid_text<oid_end; oid_text++) {
switch(*oid_text) {
case 0x09: case 0x0a: case 0x0d: case 0x20: /* whitespace */
if(state == ST_SKIPSPACE) {
switch(state) {
case ST_LEADSPACE:
case ST_TAILSPACE:
continue;
} else {
break; /* Finish */
}
case 0x2e: /* '.' */
if(state != ST_DIGITS
|| (oid_text + 1) == oid_end) {
state = ST_WAITDIGITS;
case ST_DIGITS:
_OID_CAPTURE_ARC(value_start, oid_text);
state = ST_TAILSPACE;
continue;
case ST_WAITDIGITS:
break;
}
if(arcs_count < arcs_slots)
arcs[arcs_count] = value;
arcs_count++;
state = ST_WAITDIGITS;
continue;
case 0x30: case 0x31: case 0x32: case 0x33: case 0x34:
case 0x35: case 0x36: case 0x37: case 0x38: case 0x39:
if(state != ST_DIGITS) {
state = ST_DIGITS;
value = 0;
}
if(1) {
long volatile new_value = value * 10;
/* GCC 4.x is being too smart without volatile */
if(new_value / 10 != value
|| (value = new_value + (*oid_text - 0x30)) < 0) {
/* Overflow */
state = ST_WAITDIGITS;
break;
}
case 0x2e: /* '.' */
switch(state) {
case ST_LEADSPACE:
case ST_WAITDIGITS:
break;
case ST_TAILSPACE:
state = ST_WAITDIGITS;
break;
case ST_DIGITS:
_OID_CAPTURE_ARC(value_start, oid_text);
state = ST_WAITDIGITS;
continue;
}
break;
case 0x30: case 0x31: case 0x32: case 0x33: case 0x34:
case 0x35: case 0x36: case 0x37: case 0x38: case 0x39:
switch(state) {
case ST_TAILSPACE:
state = ST_WAITDIGITS;
break;
case ST_LEADSPACE:
case ST_WAITDIGITS:
state = ST_DIGITS;
value_start = oid_text;
continue;
case ST_DIGITS:
continue;
}
break;
default:
/* Unexpected symbols */
state = ST_WAITDIGITS;
@ -714,14 +744,14 @@ OBJECT_IDENTIFIER_parse_arcs(const char *oid_text, ssize_t oid_txt_length,
/* Finalize last arc */
switch(state) {
case ST_LEADSPACE:
case ST_WAITDIGITS:
errno = EINVAL;
return -1;
case ST_DIGITS:
if(arcs_count < arcs_slots)
arcs[arcs_count] = value;
arcs_count++;
_OID_CAPTURE_ARC(value_start, oid_text);
/* Fall through */
case ST_TAILSPACE:
default:
return arcs_count;
}

22
skeletons/tests/check-OIDs.c
View File

@ -249,8 +249,10 @@ static void check_xer(int expect_arcs, char *xer) {
&asn_DEF_RELATIVE_OID, (void **)stp, "t",
xer, strlen(xer));
if(expect_arcs == -1) {
if(rc.code != RC_OK)
if(rc.code != RC_OK) {
printf("-1\n");
return;
}
}
assert(rc.code == RC_OK);
@ -381,17 +383,27 @@ main() {
CHECK_REGEN_OID(19);
CHECK_REGEN_OID(20);
check_parse("", 0);
check_parse(" ", 0);
check_parse(" ", 0);
check_parse("", -1);
check_parse(" ", -1);
check_parse(" ", -1);
check_parse(".", -1);
check_parse(" .", -1);
check_parse(".1", -1);
check_parse("1.", -1);
check_parse("1. ", -1);
check_parse(".1. ", -1);
check_parse(" .1. ", -1);
check_parse(" 1", 1);
check_parse(" 1.2", 2);
check_parse(" 1.", -1);
check_parse(" 1. ", -1);
check_parse("1. ", -1);
check_parse("1.2", 2);
check_parse("1.2 ", 2);
check_parse("1.2 ", 2);
check_parse(" 1.2 ", 2);
check_parse("1. 2", -1);
check_parse("1 .2", -1);
check_parse("10.30.234.234", 4);
check_parse("10.30.234.234 ", 4);
check_parse("10.30.234. 234 ", -1);
@ -414,7 +426,7 @@ main() {
check_parse("1.900a0000000.3", -1);
check_parse("1.900a.3", -1);
check_xer(0, "<t></t>");
check_xer(-1, "<t></t>");
check_xer(2, "<t>1.2</t>");
check_xer(3, "<t>1.2.3</t>");
check_xer(3, "<t> 1.2.3 </t>");