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Fix bugs in plpgsql and ecpg caused by assuming that isspace() would only

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return true for exactly the characters treated as whitespace by their flex
scanners.  Per report from Victor Snezhko and subsequent investigation.

Also fix a passel of unsafe usages of <ctype.h> functions, that is, ye olde
char-vs-unsigned-char issue.  I won't miss <ctype.h> when we are finally
able to stop using it.
This commit is contained in:
Tom Lane
2006-09-22 21:39:58 +00:00
parent 6d0efd3a09
commit beca984e5f
19 changed files with 112 additions and 61 deletions
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27
contrib/isn/isn.c
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/contrib/isn/isn.c,v 1.2 2006/09/10 20:45:17 tgl Exp $
* $PostgreSQL: pgsql/contrib/isn/isn.c,v 1.3 2006/09/22 21:39:57 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -72,13 +72,16 @@ bool check_table(const char *(*TABLE)[2], const unsigned TABLE_index[10][2])
aux2 = TABLE[i][1];
/* must always start with a digit: */
if(!isdigit(*aux1) || !isdigit(*aux2)) goto invalidtable;
if (!isdigit((unsigned char) *aux1) || !isdigit((unsigned char) *aux2))
goto invalidtable;
a = *aux1 - '0';
b = *aux2 - '0';
/* must always have the same format and length: */
while(*aux1 && *aux2) {
if(!(isdigit(*aux1) && isdigit(*aux2)) && (*aux1!=*aux2 || *aux1 != '-'))
if (!(isdigit((unsigned char) *aux1) &&
isdigit((unsigned char) *aux2)) &&
(*aux1 != *aux2 || *aux1 != '-'))
goto invalidtable;
aux1++;
aux2++;
@ -124,7 +127,7 @@ unsigned dehyphenate(char *bufO, char *bufI)
{
unsigned ret = 0;
while(*bufI) {
if(isdigit(*bufI)) {
if(isdigit((unsigned char) *bufI)) {
*bufO++ = *bufI;
ret++;
}
@ -183,7 +186,7 @@ unsigned hyphenate(char *bufO, char *bufI, const char *(*TABLE)[2], const unsign
firstdig++, ean_aux1++, ean_aux2++;
if(!(*ean_aux1 && *ean_aux2 && *firstdig)) break;
if(!isdigit(*ean_aux1)) ean_aux1++, ean_aux2++;
if(!isdigit((unsigned char) *ean_aux1)) ean_aux1++, ean_aux2++;
} else {
/* check in what direction we should go and move the pointer accordingly */
if(*firstdig < *ean_aux1 && !ean_in1) upper = search;
@ -227,7 +230,7 @@ unsigned weight_checkdig(char *isn, unsigned size)
{
unsigned weight = 0;
while(*isn && size>1) {
if(isdigit(*isn)) {
if(isdigit((unsigned char) *isn)) {
weight += size-- * (*isn - '0');
}
isn++;
@ -254,7 +257,7 @@ unsigned checkdig(char *num, unsigned size)
pos = 1;
}
while(*num && size>1) {
if(isdigit(*num)) {
if(isdigit((unsigned char) *num)) {
if(pos++%2) check3 += *num - '0';
else check += *num - '0';
size--;
@ -366,7 +369,7 @@ void ean2ISBN(char *isn)
hyphenate(isn, isn+4, NULL, NULL);
check = weight_checkdig(isn, 10);
aux = strchr(isn, '\0');
while(!isdigit(*--aux));
while(!isdigit((unsigned char) *--aux));
if(check == 10) *aux = 'X';
else *aux = check + '0';
}
@ -411,7 +414,7 @@ ean13 str2ean(const char *num)
{
ean13 ean = 0; /* current ean */
while(*num) {
if(isdigit(*num)) ean = 10 * ean + (*num - '0');
if(isdigit((unsigned char) *num)) ean = 10 * ean + (*num - '0');
num++;
}
return (ean<<1); /* also give room to a flag */
@ -570,7 +573,7 @@ bool string2ean(const char *str, bool errorOK, ean13 *result,
/* recognize and validate the number: */
while(*aux2 && length <= 13) {
last = (*(aux2+1) == '!' || *(aux2+1) == '\0'); /* is the last character */
digit = (isdigit(*aux2)!=0); /* is current character a digit? */
digit = (isdigit((unsigned char) *aux2)!=0); /* is current character a digit? */
if(*aux2=='?' && last) /* automagically calculate check digit if it's '?' */
magic = digit = true;
if(length == 0 && (*aux2=='M' || *aux2=='m')) {
@ -583,13 +586,13 @@ bool string2ean(const char *str, bool errorOK, ean13 *result,
/* only ISSN can be here */
if(type != INVALID) goto eaninvalid;
type = ISSN;
*aux1++ = toupper(*aux2);
*aux1++ = toupper((unsigned char) *aux2);
length++;
} else if(length == 9 && (digit || *aux2=='X' || *aux2=='x') && last) {
/* only ISBN and ISMN can be here */
if(type != INVALID && type != ISMN) goto eaninvalid;
if(type == INVALID) type = ISBN; /* ISMN must start with 'M' */
*aux1++ = toupper(*aux2);
*aux1++ = toupper((unsigned char) *aux2);
length++;
} else if(length == 11 && digit && last) {
/* only UPC can be here */