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Do not use strcpy() on overlapping buffers. (CVS 1187)

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FossilOrigin-Name: ed6bd2eb39a0940c4f41d365ddc81ecc7066cf4e
This commit is contained in:
drh
2004-01-17 01:16:21 +00:00
parent 606c369847
commit 4d5b836545
3 changed files with 18 additions and 18 deletions
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22
src/date.c
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@@ -16,7 +16,7 @@
** sqliteRegisterDateTimeFunctions() found at the bottom of the file.
** All other code has file scope.
**
** $Id: date.c,v 1.8 2004/01/08 02:17:32 drh Exp $
** $Id: date.c,v 1.9 2004/01/17 01:16:21 drh Exp $
**
** NOTES:
**
@@ -452,8 +452,9 @@ static int parseModifier(const char *zMod, DateTime *p){
int rc = 1;
int n;
double r;
char z[30];
for(n=0; n<sizeof(z)-1 && zMod[n]; n++){
char *z, zBuf[30];
z = zBuf;
for(n=0; n<sizeof(zBuf)-1 && zMod[n]; n++){
z[n] = tolower(zMod[n]);
}
z[n] = 0;
@@ -526,22 +527,22 @@ static int parseModifier(const char *zMod, DateTime *p){
** or month or year.
*/
if( strncmp(z, "start of ", 9)!=0 ) break;
zMod = &z[9];
z += 9;
computeYMD(p);
p->validHMS = 1;
p->h = p->m = 0;
p->s = 0.0;
p->validTZ = 0;
p->validJD = 0;
if( strcmp(zMod,"month")==0 ){
if( strcmp(z,"month")==0 ){
p->D = 1;
rc = 0;
}else if( strcmp(zMod,"year")==0 ){
}else if( strcmp(z,"year")==0 ){
computeYMD(p);
p->M = 1;
p->D = 1;
rc = 0;
}else if( strcmp(zMod,"day")==0 ){
}else if( strcmp(z,"day")==0 ){
rc = 0;
}
break;
@@ -560,11 +561,10 @@ static int parseModifier(const char *zMod, DateTime *p){
case '9': {
n = getValue(z, &r);
if( n<=0 ) break;
zMod = &z[n];
while( isspace(zMod[0]) ) zMod++;
n = strlen(zMod);
z += n;
while( isspace(z[0]) ) z++;
n = strlen(z);
if( n>10 || n<3 ) break;
strcpy(z, zMod);
if( z[n-1]=='s' ){ z[n-1] = 0; n--; }
computeJD(p);
rc = 0;