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Overview
| Comment: | Fix the non-standard %q format specifier in Fossil's custom printf() implementation so that the precision refers to the number of input characters, not the number of output characters. |
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| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
0971536165b064ee6dc643c6782a2a20 |
| User & Date: | drh 2025-07-09 13:01:11.063 |
Context
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2025-07-09
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| 13:46 | Do not give unnecessary clues to user anonymous (which is the login used by most attack robots) that something has gone wrong inside of Fossil. check-in: c66b038cae user: drh tags: trunk | |
| 13:01 | Fix the non-standard %q format specifier in Fossil's custom printf() implementation so that the precision refers to the number of input characters, not the number of output characters. check-in: 0971536165 user: drh tags: trunk | |
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2025-07-08
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| 20:35 | Update the built-in SQLite to the latest trunk version for testing. check-in: d62593b787 user: drh tags: trunk | |
Changes
Changes to src/printf.c.
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int needQuote;
int limit = flag_alternateform ? va_arg(ap,int) : -1;
char q = ((xtype==etSQLESCAPE3)?'"':'\''); /* Quote characters */
char *escarg = va_arg(ap,char*);
isnull = escarg==0;
if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
if( limit<0 ) limit = strlen(escarg);
for(i=n=0; i<limit; i++){
if( escarg[i]==q ) n++;
}
needQuote = !isnull && xtype==etSQLESCAPE2;
n += i + 1 + needQuote*2;
if( n>etBUFSIZE ){
bufpt = zExtra = fossil_malloc( n );
}else{
bufpt = buf;
}
j = 0;
if( needQuote ) bufpt[j++] = q;
for(i=0; i<limit; i++){
bufpt[j++] = ch = escarg[i];
if( ch==q ) bufpt[j++] = ch;
}
if( needQuote ) bufpt[j++] = q;
bufpt[j] = 0;
length = j;
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int needQuote;
int limit = flag_alternateform ? va_arg(ap,int) : -1;
char q = ((xtype==etSQLESCAPE3)?'"':'\''); /* Quote characters */
char *escarg = va_arg(ap,char*);
isnull = escarg==0;
if( isnull ) escarg = (xtype==etSQLESCAPE2 ? "NULL" : "(NULL)");
if( limit<0 ) limit = strlen(escarg);
if( precision>=0 && precision<limit ) limit = precision;
for(i=n=0; i<limit; i++){
if( escarg[i]==q ) n++;
}
needQuote = !isnull && xtype==etSQLESCAPE2;
n += i + 1 + needQuote*2;
if( n>etBUFSIZE ){
bufpt = zExtra = fossil_malloc( n );
}else{
bufpt = buf;
}
j = 0;
if( needQuote ) bufpt[j++] = q;
for(i=0; i<limit; i++){
bufpt[j++] = ch = escarg[i];
if( ch==q ) bufpt[j++] = ch;
}
if( needQuote ) bufpt[j++] = q;
bufpt[j] = 0;
length = j;
break;
}
case etHTMLIZE: {
int limit = flag_alternateform ? va_arg(ap,int) : -1;
char *zMem = va_arg(ap,char*);
if( zMem==0 ) zMem = "";
zExtra = bufpt = htmlize(zMem, limit);
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