From b50898894d885eb4a95e6ff88f90ab56f9c8c03c Mon Sep 17 00:00:00 2001 From: Niels Dossche <7771979+nielsdos@users.noreply.github.com> Date: Sun, 22 Jun 2025 16:03:45 +0200 Subject: [PATCH 1/2] Unbreak PRINTF_DEBUG macro usages Clearly nobody has used this in a while given the compile errors and warnings. This patch fixes them so there are no errors nor warnings anymore. Closes GH-18910. --- ext/standard/formatted_print.c | 46 ++++++++++++++++++---------------- 1 file changed, 25 insertions(+), 21 deletions(-) diff --git a/ext/standard/formatted_print.c b/ext/standard/formatted_print.c index b988422df21..00445d3cca7 100644 --- a/ext/standard/formatted_print.c +++ b/ext/standard/formatted_print.c @@ -52,10 +52,10 @@ inline static void php_sprintf_appendchar(zend_string **buffer, size_t *pos, char add) { if ((*pos + 1) >= ZSTR_LEN(*buffer)) { - PRINTF_DEBUG(("%s(): ereallocing buffer to %d bytes\n", get_active_function_name(), ZSTR_LEN(*buffer))); + PRINTF_DEBUG(("%s(): ereallocing buffer to %zu bytes\n", get_active_function_name(), ZSTR_LEN(*buffer))); *buffer = zend_string_extend(*buffer, ZSTR_LEN(*buffer) << 1, 0); } - PRINTF_DEBUG(("sprintf: appending '%c', pos=\n", add, *pos)); + PRINTF_DEBUG(("sprintf: appending '%c', pos=%zu\n", add, *pos)); ZSTR_VAL(*buffer)[(*pos)++] = add; } /* }}} */ @@ -67,13 +67,13 @@ php_sprintf_appendchars(zend_string **buffer, size_t *pos, char *add, size_t len if ((*pos + len) >= ZSTR_LEN(*buffer)) { size_t nlen = ZSTR_LEN(*buffer); - PRINTF_DEBUG(("%s(): ereallocing buffer to %d bytes\n", get_active_function_name(), ZSTR_LEN(*buffer))); + PRINTF_DEBUG(("%s(): ereallocing buffer to %zu bytes\n", get_active_function_name(), ZSTR_LEN(*buffer))); do { nlen = nlen << 1; } while ((*pos + len) >= nlen); *buffer = zend_string_extend(*buffer, nlen, 0); } - PRINTF_DEBUG(("sprintf: appending \"%s\", pos=\n", add, *pos)); + PRINTF_DEBUG(("sprintf: appending \"%s\", pos=%zu\n", add, *pos)); memcpy(ZSTR_VAL(*buffer) + (*pos), add, len); *pos += len; } @@ -93,7 +93,7 @@ php_sprintf_appendstring(zend_string **buffer, size_t *pos, char *add, copy_len = (expprec ? MIN(max_width, len) : len); npad = (min_width < copy_len) ? 0 : min_width - copy_len; - PRINTF_DEBUG(("sprintf: appendstring(%x, %d, %d, \"%s\", %d, '%c', %d)\n", + PRINTF_DEBUG(("sprintf: appendstring(%p, %zu, %zu, \"%s\", %zu, '%c', %zu)\n", *buffer, *pos, ZSTR_LEN(*buffer), add, min_width, padding, alignment)); m_width = MAX(min_width, copy_len); @@ -111,7 +111,7 @@ php_sprintf_appendstring(zend_string **buffer, size_t *pos, char *add, } size <<= 1; } - PRINTF_DEBUG(("sprintf ereallocing buffer to %d bytes\n", size)); + PRINTF_DEBUG(("sprintf ereallocing buffer to %zu bytes\n", size)); *buffer = zend_string_extend(*buffer, size, 0); } if (alignment == ALIGN_RIGHT) { @@ -146,8 +146,8 @@ php_sprintf_appendint(zend_string **buffer, size_t *pos, zend_long number, zend_ulong magn, nmagn; unsigned int i = NUM_BUF_SIZE - 1, neg = 0; - PRINTF_DEBUG(("sprintf: appendint(%x, %x, %x, %d, %d, '%c', %d)\n", - *buffer, pos, &ZSTR_LEN(*buffer), number, width, padding, alignment)); + PRINTF_DEBUG(("sprintf: appendint(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu)\n", + *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment)); if (number < 0) { neg = 1; magn = ((zend_ulong) -(number + 1)) + 1; @@ -172,7 +172,7 @@ php_sprintf_appendint(zend_string **buffer, size_t *pos, zend_long number, } else if (always_sign) { numbuf[--i] = '+'; } - PRINTF_DEBUG(("sprintf: appending %d as \"%s\", i=%d\n", + PRINTF_DEBUG(("sprintf: appending " ZEND_LONG_FMT " as \"%s\", i=%u\n", number, &numbuf[i], i)); php_sprintf_appendstring(buffer, pos, &numbuf[i], width, 0, padding, alignment, (NUM_BUF_SIZE - 1) - i, @@ -190,8 +190,8 @@ php_sprintf_appenduint(zend_string **buffer, size_t *pos, zend_ulong magn, nmagn; unsigned int i = NUM_BUF_SIZE - 1; - PRINTF_DEBUG(("sprintf: appenduint(%x, %x, %x, %d, %d, '%c', %d)\n", - *buffer, pos, &ZSTR_LEN(*buffer), number, width, padding, alignment)); + PRINTF_DEBUG(("sprintf: appenduint(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu)\n", + *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment)); magn = (zend_ulong) number; /* Can't right-pad 0's on integers */ @@ -206,7 +206,7 @@ php_sprintf_appenduint(zend_string **buffer, size_t *pos, magn = nmagn; } while (magn > 0 && i > 0); - PRINTF_DEBUG(("sprintf: appending %d as \"%s\", i=%d\n", number, &numbuf[i], i)); + PRINTF_DEBUG(("sprintf: appending " ZEND_LONG_FMT " as \"%s\", i=%d\n", number, &numbuf[i], i)); php_sprintf_appendstring(buffer, pos, &numbuf[i], width, 0, padding, alignment, (NUM_BUF_SIZE - 1) - i, /* neg */ false, 0, 0); } @@ -232,8 +232,8 @@ php_sprintf_appenddouble(zend_string **buffer, size_t *pos, struct lconv *lconv; #endif - PRINTF_DEBUG(("sprintf: appenddouble(%x, %x, %x, %f, %d, '%c', %d, %c)\n", - *buffer, pos, &ZSTR_LEN(*buffer), number, width, padding, alignment, fmt)); + PRINTF_DEBUG(("sprintf: appenddouble(%p, %zu, %zu, %f, %zu, '%c', %zu, %c)\n", + *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment, fmt)); if ((adjust & ADJ_PRECISION) == 0) { precision = FLOAT_PRECISION; } else if (precision > MAX_FLOAT_PRECISION) { @@ -330,8 +330,8 @@ php_sprintf_append2n(zend_string **buffer, size_t *pos, zend_long number, zend_ulong i = NUM_BUF_SIZE - 1; int andbits = (1 << n) - 1; - PRINTF_DEBUG(("sprintf: append2n(%x, %x, %x, %d, %d, '%c', %d, %d, %x)\n", - *buffer, pos, &ZSTR_LEN(*buffer), number, width, padding, alignment, n, + PRINTF_DEBUG(("sprintf: append2n(%p, %zu, %zu, " ZEND_LONG_FMT ", %zu, '%c', %zu, %d, %p)\n", + *buffer, *pos, ZSTR_LEN(*buffer), number, width, padding, alignment, n, chartable)); PRINTF_DEBUG(("sprintf: append2n 2^%d andbits=%x\n", n, andbits)); @@ -363,7 +363,7 @@ php_sprintf_getnumber(char **buffer, size_t *len) *len -= i; *buffer = endptr; } - PRINTF_DEBUG(("sprintf_getnumber: number was %d bytes long\n", i)); + PRINTF_DEBUG(("sprintf_getnumber: number was %zu bytes long\n", i)); if (num >= INT_MAX || num < 0) { return -1; @@ -431,6 +431,10 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n int always_sign; int max_missing_argnum = -1; + /* For debugging */ + const char *format_orig = format; + ZEND_IGNORE_VALUE(format_orig); + result = zend_string_alloc(size, 0); currarg = 0; @@ -464,8 +468,8 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n always_sign = 0; expprec = 0; - PRINTF_DEBUG(("sprintf: first looking at '%c', inpos=%d\n", - *format, format - Z_STRVAL_P(z_format))); + PRINTF_DEBUG(("sprintf: first looking at '%c', inpos=%zu\n", + *format, format - format_orig)); if (isalpha((int)*format)) { width = precision = 0; argnum = ARG_NUM_NEXT; @@ -478,8 +482,8 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n /* after argnum comes modifiers */ PRINTF_DEBUG(("sprintf: looking for modifiers\n" - "sprintf: now looking at '%c', inpos=%d\n", - *format, format - Z_STRVAL_P(z_format))); + "sprintf: now looking at '%c', inpos=%zu\n", + *format, format - format_orig)); for (;; format++, format_len--) { if (*format == ' ' || *format == '0') { padding = *format; From 799ec7b8c50440f851d823d5c4b68f430234149b Mon Sep 17 00:00:00 2001 From: Niels Dossche <7771979+nielsdos@users.noreply.github.com> Date: Sun, 22 Jun 2025 16:29:19 +0200 Subject: [PATCH 2/2] Fix misleading errors in printf() The precision and width _can_ be zero. Closes GH-18911. --- NEWS | 3 +++ ext/standard/formatted_print.c | 6 +++--- ext/standard/tests/strings/sprintf_star.phpt | 16 +++++++++++++++- 3 files changed, 21 insertions(+), 4 deletions(-) diff --git a/NEWS b/NEWS index fd344ee94c7..10102096962 100644 --- a/NEWS +++ b/NEWS @@ -20,6 +20,9 @@ PHP NEWS - MbString: . Fixed bug GH-18901 (integer overflow mb_split). (nielsdos) +- Standard: + . Fix misleading errors in printf(). (nielsdos) + - Streams: . Fixed GH-13264 (fgets() and stream_get_line() do not return false on filter fatal error). (Jakub Zelenka) diff --git a/ext/standard/formatted_print.c b/ext/standard/formatted_print.c index 00445d3cca7..1ff0f36212b 100644 --- a/ext/standard/formatted_print.c +++ b/ext/standard/formatted_print.c @@ -534,7 +534,7 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n goto fail; } if (Z_LVAL_P(tmp) < 0 || Z_LVAL_P(tmp) > INT_MAX) { - zend_value_error("Width must be greater than zero and less than %d", INT_MAX); + zend_value_error("Width must be between 0 and %d", INT_MAX); goto fail; } width = Z_LVAL_P(tmp); @@ -542,7 +542,7 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n } else if (isdigit((int)*format)) { PRINTF_DEBUG(("sprintf: getting width\n")); if ((width = php_sprintf_getnumber(&format, &format_len)) < 0) { - zend_value_error("Width must be greater than zero and less than %d", INT_MAX); + zend_value_error("Width must be between 0 and %d", INT_MAX); goto fail; } adjusting |= ADJ_WIDTH; @@ -586,7 +586,7 @@ php_formatted_print(char *format, size_t format_len, zval *args, int argc, int n expprec = 1; } else if (isdigit((int)*format)) { if ((precision = php_sprintf_getnumber(&format, &format_len)) < 0) { - zend_value_error("Precision must be greater than zero and less than %d", INT_MAX); + zend_value_error("Precision must be between 0 and %d", INT_MAX); goto fail; } adjusting |= ADJ_PRECISION; diff --git a/ext/standard/tests/strings/sprintf_star.phpt b/ext/standard/tests/strings/sprintf_star.phpt index 0e3e16c3264..0c8a211e5c4 100644 --- a/ext/standard/tests/strings/sprintf_star.phpt +++ b/ext/standard/tests/strings/sprintf_star.phpt @@ -62,6 +62,18 @@ try { echo $e->getMessage(), "\n"; } +try { + printf("%9999999999999999999999.f\n", $f); +} catch (ValueError $e) { + echo $e->getMessage(), "\n"; +} + +try { + printf("%.9999999999999999999999f\n", $f); +} catch (ValueError $e) { + echo $e->getMessage(), "\n"; +} + ?> --EXPECT-- float(1.2345678901234567) @@ -95,4 +107,6 @@ foo Precision must be an integer Precision must be between -1 and 2147483647 Precision -1 is only supported for %g, %G, %h and %H -Width must be greater than zero and less than 2147483647 +Width must be between 0 and 2147483647 +Width must be between 0 and 2147483647 +Precision must be between 0 and 2147483647