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Make PQescapeBytea and byteaout consistent with each other, and

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octal escape all octets outside the range 0x20 to 0x7e. This fixes
the problem pointed out by Sergey Yatskevich here:
http://archives.postgresql.org/pgsql-bugs/2003-11/msg00140.php
This commit is contained in:
Joe Conway
2003-11-30 20:55:09 +00:00
parent 32abf0e781
commit b8f40ced2f
3 changed files with 32 additions and 19 deletions
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14
src/backend/utils/adt/varlena.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.107 2003/11/29 19:51:59 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/varlena.c,v 1.108 2003/11/30 20:55:09 joe Exp $
*
*-------------------------------------------------------------------------
*/
@ -186,10 +186,10 @@ byteaout(PG_FUNCTION_ARGS)
{
if (*vp == '\\')
len += 2;
else if (isprint((unsigned char) *vp))
len++;
else
else if ((unsigned char) *vp < 0x20 || (unsigned char) *vp > 0x7e)
len += 4;
else
len++;
}
rp = result = (char *) palloc(len);
vp = VARDATA(vlena);
@ -200,9 +200,7 @@ byteaout(PG_FUNCTION_ARGS)
*rp++ = '\\';
*rp++ = '\\';
}
else if (isprint((unsigned char) *vp))
*rp++ = *vp;
else
else if ((unsigned char) *vp < 0x20 || (unsigned char) *vp > 0x7e)
{
val = *vp;
rp[0] = '\\';
@ -213,6 +211,8 @@ byteaout(PG_FUNCTION_ARGS)
rp[1] = DIG(val & 03);
rp += 4;
}
else
*rp++ = *vp;
}
*rp = '\0';
PG_RETURN_CSTRING(result);