diff options
| -rw-r--r-- | src/backend/storage/lmgr/generate-lwlocknames.pl | 3 | ||||
| -rw-r--r-- | src/backend/utils/adt/bytea.c | 61 | ||||
| -rw-r--r-- | src/test/regress/expected/strings.out | 12 | ||||
| -rw-r--r-- | src/test/regress/sql/strings.sql | 2 |
4 files changed, 30 insertions, 48 deletions
diff --git a/src/backend/storage/lmgr/generate-lwlocknames.pl b/src/backend/storage/lmgr/generate-lwlocknames.pl index 4441b7cba0c..c7a6720440d 100644 --- a/src/backend/storage/lmgr/generate-lwlocknames.pl +++ b/src/backend/storage/lmgr/generate-lwlocknames.pl @@ -10,7 +10,6 @@ use Getopt::Long; my $output_path = '.'; my $lastlockidx = -1; -my $continue = "\n"; GetOptions('outdir:s' => \$output_path); @@ -102,10 +101,8 @@ while (<$lwlocklist>) while ($lastlockidx < $lockidx - 1) { ++$lastlockidx; - $continue = ",\n"; } $lastlockidx = $lockidx; - $continue = ",\n"; # Add a "Lock" suffix to each lock name, as the C code depends on that printf $h "#define %-32s (&MainLWLockArray[$lockidx].lock)\n", diff --git a/src/backend/utils/adt/bytea.c b/src/backend/utils/adt/bytea.c index 2e539c2504e..6e7b914c563 100644 --- a/src/backend/utils/adt/bytea.c +++ b/src/backend/utils/adt/bytea.c @@ -182,27 +182,21 @@ bytea_overlay(bytea *t1, bytea *t2, int sp, int sl) * * Non-printable characters must be passed as '\nnn' (octal) and are * converted to internal form. '\' must be passed as '\\'. - * ereport(ERROR, ...) if bad form. - * - * BUGS: - * The input is scanned twice. - * The error checking of input is minimal. */ Datum byteain(PG_FUNCTION_ARGS) { char *inputText = PG_GETARG_CSTRING(0); Node *escontext = fcinfo->context; + size_t len = strlen(inputText); + size_t bc; char *tp; char *rp; - int bc; bytea *result; /* Recognize hex input */ if (inputText[0] == '\\' && inputText[1] == 'x') { - size_t len = strlen(inputText); - bc = (len - 2) / 2 + VARHDRSZ; /* maximum possible length */ result = palloc(bc); bc = hex_decode_safe(inputText + 2, len - 2, VARDATA(result), @@ -213,33 +207,7 @@ byteain(PG_FUNCTION_ARGS) } /* Else, it's the traditional escaped style */ - for (bc = 0, tp = inputText; *tp != '\0'; bc++) - { - if (tp[0] != '\\') - tp++; - else if ((tp[0] == '\\') && - (tp[1] >= '0' && tp[1] <= '3') && - (tp[2] >= '0' && tp[2] <= '7') && - (tp[3] >= '0' && tp[3] <= '7')) - tp += 4; - else if ((tp[0] == '\\') && - (tp[1] == '\\')) - tp += 2; - else - { - /* - * one backslash, not followed by another or ### valid octal - */ - ereturn(escontext, (Datum) 0, - (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION), - errmsg("invalid input syntax for type %s", "bytea"))); - } - } - - bc += VARHDRSZ; - - result = (bytea *) palloc(bc); - SET_VARSIZE(result, bc); + result = (bytea *) palloc(len + VARHDRSZ); /* maximum possible length */ tp = inputText; rp = VARDATA(result); @@ -247,21 +215,21 @@ byteain(PG_FUNCTION_ARGS) { if (tp[0] != '\\') *rp++ = *tp++; - else if ((tp[0] == '\\') && - (tp[1] >= '0' && tp[1] <= '3') && + else if ((tp[1] >= '0' && tp[1] <= '3') && (tp[2] >= '0' && tp[2] <= '7') && (tp[3] >= '0' && tp[3] <= '7')) { - bc = VAL(tp[1]); - bc <<= 3; - bc += VAL(tp[2]); - bc <<= 3; - *rp++ = bc + VAL(tp[3]); + int v; + + v = VAL(tp[1]); + v <<= 3; + v += VAL(tp[2]); + v <<= 3; + *rp++ = v + VAL(tp[3]); tp += 4; } - else if ((tp[0] == '\\') && - (tp[1] == '\\')) + else if (tp[1] == '\\') { *rp++ = '\\'; tp += 2; @@ -269,7 +237,7 @@ byteain(PG_FUNCTION_ARGS) else { /* - * We should never get here. The first pass should not allow it. + * one backslash, not followed by another or ### valid octal */ ereturn(escontext, (Datum) 0, (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION), @@ -277,6 +245,9 @@ byteain(PG_FUNCTION_ARGS) } } + bc = rp - VARDATA(result); /* actual length */ + SET_VARSIZE(result, bc + VARHDRSZ); + PG_RETURN_BYTEA_P(result); } diff --git a/src/test/regress/expected/strings.out b/src/test/regress/expected/strings.out index 788844abd20..1bfd33de3f3 100644 --- a/src/test/regress/expected/strings.out +++ b/src/test/regress/expected/strings.out @@ -236,6 +236,12 @@ SELECT E'De\\678dBeEf'::bytea; ERROR: invalid input syntax for type bytea LINE 1: SELECT E'De\\678dBeEf'::bytea; ^ +SELECT E'DeAd\\\\BeEf'::bytea; + bytea +---------------------- + \x446541645c42654566 +(1 row) + SELECT reverse(''::bytea); reverse --------- @@ -291,6 +297,12 @@ SELECT E'De\\123dBeEf'::bytea; DeSdBeEf (1 row) +SELECT E'DeAd\\\\BeEf'::bytea; + bytea +------------ + DeAd\\BeEf +(1 row) + -- Test non-error-throwing API too SELECT pg_input_is_valid(E'\\xDeAdBeE', 'bytea'); pg_input_is_valid diff --git a/src/test/regress/sql/strings.sql b/src/test/regress/sql/strings.sql index 2577a42987d..92c445c2439 100644 --- a/src/test/regress/sql/strings.sql +++ b/src/test/regress/sql/strings.sql @@ -76,6 +76,7 @@ SELECT E'De\\000dBeEf'::bytea; SELECT E'De\123dBeEf'::bytea; SELECT E'De\\123dBeEf'::bytea; SELECT E'De\\678dBeEf'::bytea; +SELECT E'DeAd\\\\BeEf'::bytea; SELECT reverse(''::bytea); SELECT reverse('\xaa'::bytea); @@ -88,6 +89,7 @@ SELECT E'\\xDe00BeEf'::bytea; SELECT E'DeAdBeEf'::bytea; SELECT E'De\\000dBeEf'::bytea; SELECT E'De\\123dBeEf'::bytea; +SELECT E'DeAd\\\\BeEf'::bytea; -- Test non-error-throwing API too SELECT pg_input_is_valid(E'\\xDeAdBeE', 'bytea'); |