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php-src/phpdbg_utils.c
Bob Weinand fa89d8b3f9 Fix escaping of <
2014-10-08 23:42:20 +02:00

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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Felipe Pena <felipe@php.net> |
| Authors: Joe Watkins <joe.watkins@live.co.uk> |
| Authors: Bob Weinand <bwoebi@php.net> |
+----------------------------------------------------------------------+
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include "zend.h"
#include "php.h"
#include "spprintf.h"
#include "phpdbg.h"
#include "phpdbg_opcode.h"
#include "phpdbg_utils.h"
#include "ext/standard/html.h"
#ifdef _WIN32
# include "win32/time.h"
#elif defined(HAVE_SYS_IOCTL_H)
# include "sys/ioctl.h"
# ifndef GWINSZ_IN_SYS_IOCTL
# include <termios.h>
# endif
#endif
ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
/* {{{ color structures */
const static phpdbg_color_t colors[] = {
PHPDBG_COLOR_D("none", "0;0"),
PHPDBG_COLOR_D("white", "0;64"),
PHPDBG_COLOR_D("white-bold", "1;64"),
PHPDBG_COLOR_D("white-underline", "4;64"),
PHPDBG_COLOR_D("red", "0;31"),
PHPDBG_COLOR_D("red-bold", "1;31"),
PHPDBG_COLOR_D("red-underline", "4;31"),
PHPDBG_COLOR_D("green", "0;32"),
PHPDBG_COLOR_D("green-bold", "1;32"),
PHPDBG_COLOR_D("green-underline", "4;32"),
PHPDBG_COLOR_D("yellow", "0;33"),
PHPDBG_COLOR_D("yellow-bold", "1;33"),
PHPDBG_COLOR_D("yellow-underline", "4;33"),
PHPDBG_COLOR_D("blue", "0;34"),
PHPDBG_COLOR_D("blue-bold", "1;34"),
PHPDBG_COLOR_D("blue-underline", "4;34"),
PHPDBG_COLOR_D("purple", "0;35"),
PHPDBG_COLOR_D("purple-bold", "1;35"),
PHPDBG_COLOR_D("purple-underline", "4;35"),
PHPDBG_COLOR_D("cyan", "0;36"),
PHPDBG_COLOR_D("cyan-bold", "1;36"),
PHPDBG_COLOR_D("cyan-underline", "4;36"),
PHPDBG_COLOR_D("black", "0;30"),
PHPDBG_COLOR_D("black-bold", "1;30"),
PHPDBG_COLOR_D("black-underline", "4;30"),
PHPDBG_COLOR_END
}; /* }}} */
/* {{{ */
const static phpdbg_element_t elements[] = {
PHPDBG_ELEMENT_D("prompt", PHPDBG_COLOR_PROMPT),
PHPDBG_ELEMENT_D("error", PHPDBG_COLOR_ERROR),
PHPDBG_ELEMENT_D("notice", PHPDBG_COLOR_NOTICE),
PHPDBG_ELEMENT_END
}; /* }}} */
PHPDBG_API int phpdbg_is_numeric(const char *str) /* {{{ */
{
if (!str)
return 0;
for (; *str; str++) {
if (isspace(*str) || *str == '-') {
continue;
}
return isdigit(*str);
}
return 0;
} /* }}} */
PHPDBG_API int phpdbg_is_empty(const char *str) /* {{{ */
{
if (!str)
return 1;
for (; *str; str++) {
if (isspace(*str)) {
continue;
}
return 0;
}
return 1;
} /* }}} */
PHPDBG_API int phpdbg_is_addr(const char *str) /* {{{ */
{
return str[0] && str[1] && memcmp(str, "0x", 2) == 0;
} /* }}} */
PHPDBG_API int phpdbg_is_class_method(const char *str, size_t len, char **class, char **method) /* {{{ */
{
char *sep = NULL;
if (strstr(str, "#") != NULL)
return 0;
if (strstr(str, " ") != NULL)
return 0;
sep = strstr(str, "::");
if (!sep || sep == str || sep+2 == str+len-1) {
return 0;
}
if (class != NULL) {
if (str[0] == '\\') {
str++;
len--;
}
*class = estrndup(str, sep - str);
(*class)[sep - str] = 0;
}
if (method != NULL) {
*method = estrndup(sep+2, str + len - (sep + 2));
}
return 1;
} /* }}} */
PHPDBG_API char *phpdbg_resolve_path(const char *path TSRMLS_DC) /* {{{ */
{
char resolved_name[MAXPATHLEN];
if (expand_filepath(path, resolved_name TSRMLS_CC) == NULL) {
return NULL;
}
return estrdup(resolved_name);
} /* }}} */
PHPDBG_API const char *phpdbg_current_file(TSRMLS_D) /* {{{ */
{
const char *file = zend_get_executed_filename(TSRMLS_C);
if (memcmp(file, "[no active file]", sizeof("[no active file]")) == 0) {
return PHPDBG_G(exec);
}
return file;
} /* }}} */
PHPDBG_API const zend_function *phpdbg_get_function(const char *fname, const char *cname TSRMLS_DC) /* {{{ */
{
zend_function *func = NULL;
size_t fname_len = strlen(fname);
char *lcname = zend_str_tolower_dup(fname, fname_len);
if (cname) {
zend_class_entry **ce;
size_t cname_len = strlen(cname);
char *lc_cname = zend_str_tolower_dup(cname, cname_len);
int ret = zend_lookup_class(lc_cname, cname_len, &ce TSRMLS_CC);
efree(lc_cname);
if (ret == SUCCESS) {
zend_hash_find(&(*ce)->function_table, lcname, fname_len+1,
(void**)&func);
}
} else {
zend_hash_find(EG(function_table), lcname, fname_len+1,
(void**)&func);
}
efree(lcname);
return func;
} /* }}} */
PHPDBG_API char *phpdbg_trim(const char *str, size_t len, size_t *new_len) /* {{{ */
{
const char *p = str;
char *new = NULL;
while (p && isspace(*p)) {
++p;
--len;
}
while (*p && isspace(*(p + len -1))) {
--len;
}
if (len == 0) {
new = estrndup("", sizeof(""));
*new_len = 0;
} else {
new = estrndup(p, len);
*(new + len) = '\0';
if (new_len) {
*new_len = len;
}
}
return new;
} /* }}} */
/* copied from php-src/main/snprintf.c and slightly modified */
/*
* NUM_BUF_SIZE is the size of the buffer used for arithmetic conversions
*
* XXX: this is a magic number; do not decrease it
* Emax = 1023
* NDIG = 320
* NUM_BUF_SIZE >= strlen("-") + Emax + strlrn(".") + NDIG + strlen("E+1023") + 1;
*/
#define NUM_BUF_SIZE 2048
/*
* Descriptor for buffer area
*/
struct buf_area {
char *buf_end;
char *nextb; /* pointer to next byte to read/write */
};
typedef struct buf_area buffy;
/*
* The INS_CHAR macro inserts a character in the buffer and writes
* the buffer back to disk if necessary
* It uses the char pointers sp and bep:
* sp points to the next available character in the buffer
* bep points to the end-of-buffer+1
* While using this macro, note that the nextb pointer is NOT updated.
*
* NOTE: Evaluation of the c argument should not have any side-effects
*/
#define INS_CHAR(c, sp, bep, cc) \
{ \
if (sp < bep) \
{ \
*sp++ = c; \
} \
cc++; \
}
#define NUM( c ) ( c - '0' )
#define STR_TO_DEC( str, num ) \
num = NUM( *str++ ) ; \
while ( isdigit((int)*str ) ) \
{ \
num *= 10 ; \
num += NUM( *str++ ) ; \
}
/*
* This macro does zero padding so that the precision
* requirement is satisfied. The padding is done by
* adding '0's to the left of the string that is going
* to be printed.
*/
#define FIX_PRECISION( adjust, precision, s, s_len ) \
if ( adjust ) \
while ( s_len < precision ) \
{ \
*--s = '0' ; \
s_len++ ; \
}
/*
* Macro that does padding. The padding is done by printing
* the character ch.
*/
#define PAD( width, len, ch ) do \
{ \
INS_CHAR( ch, sp, bep, cc ) ; \
width-- ; \
} \
while ( width > len )
/*
* Prefix the character ch to the string str
* Increase length
* Set the has_prefix flag
*/
#define PREFIX( str, length, ch ) *--str = ch ; length++ ; has_prefix = YES
#ifdef HAVE_LOCALE_H
#include <locale.h>
#define LCONV_DECIMAL_POINT (*lconv->decimal_point)
#else
#define LCONV_DECIMAL_POINT '.'
#endif
#define NUL '\0'
#define S_NULL "(null)"
#define S_NULL_LEN 6
#define FLOAT_DIGITS 6
/*
* Do format conversion placing the output in buffer
*/
static int format_converter(register buffy *odp, const char *fmt, zend_bool escape_xml, va_list ap TSRMLS_DC) {
char *sp;
char *bep;
int cc = 0;
int i;
char *s = NULL, *free_s = NULL;
int s_len, free_zcopy;
zval *zvp, zcopy;
int min_width = 0;
int precision = 0;
enum {
LEFT, RIGHT
} adjust;
char pad_char;
char prefix_char;
double fp_num;
wide_int i_num = (wide_int) 0;
u_wide_int ui_num;
char num_buf[NUM_BUF_SIZE];
char char_buf[2]; /* for printing %% and %<unknown> */
#ifdef HAVE_LOCALE_H
struct lconv *lconv = NULL;
#endif
/*
* Flag variables
*/
length_modifier_e modifier;
boolean_e alternate_form;
boolean_e print_sign;
boolean_e print_blank;
boolean_e adjust_precision;
boolean_e adjust_width;
bool_int is_negative;
sp = odp->nextb;
bep = odp->buf_end;
while (*fmt) {
if (*fmt != '%') {
INS_CHAR(*fmt, sp, bep, cc);
} else {
/*
* Default variable settings
*/
adjust = RIGHT;
alternate_form = print_sign = print_blank = NO;
pad_char = ' ';
prefix_char = NUL;
free_zcopy = 0;
fmt++;
/*
* Try to avoid checking for flags, width or precision
*/
if (isascii((int)*fmt) && !islower((int)*fmt)) {
/*
* Recognize flags: -, #, BLANK, +
*/
for (;; fmt++) {
if (*fmt == '-')
adjust = LEFT;
else if (*fmt == '+')
print_sign = YES;
else if (*fmt == '#')
alternate_form = YES;
else if (*fmt == ' ')
print_blank = YES;
else if (*fmt == '0')
pad_char = '0';
else
break;
}
/*
* Check if a width was specified
*/
if (isdigit((int)*fmt)) {
STR_TO_DEC(fmt, min_width);
adjust_width = YES;
} else if (*fmt == '*') {
min_width = va_arg(ap, int);
fmt++;
adjust_width = YES;
if (min_width < 0) {
adjust = LEFT;
min_width = -min_width;
}
} else
adjust_width = NO;
/*
* Check if a precision was specified
*/
if (*fmt == '.') {
adjust_precision = YES;
fmt++;
if (isdigit((int)*fmt)) {
STR_TO_DEC(fmt, precision);
} else if (*fmt == '*') {
precision = va_arg(ap, int);
fmt++;
if (precision < 0)
precision = 0;
} else
precision = 0;
if (precision > FORMAT_CONV_MAX_PRECISION && *fmt != 's' && *fmt != 'v' && *fmt != 'b') {
precision = FORMAT_CONV_MAX_PRECISION;
}
} else
adjust_precision = NO;
} else
adjust_precision = adjust_width = NO;
/*
* Modifier check
*/
switch (*fmt) {
case 'L':
fmt++;
modifier = LM_LONG_DOUBLE;
break;
case 'I':
fmt++;
#if SIZEOF_LONG_LONG
if (*fmt == '6' && *(fmt+1) == '4') {
fmt += 2;
modifier = LM_LONG_LONG;
} else
#endif
if (*fmt == '3' && *(fmt+1) == '2') {
fmt += 2;
modifier = LM_LONG;
} else {
#ifdef _WIN64
modifier = LM_LONG_LONG;
#else
modifier = LM_LONG;
#endif
}
break;
case 'l':
fmt++;
#if SIZEOF_LONG_LONG
if (*fmt == 'l') {
fmt++;
modifier = LM_LONG_LONG;
} else
#endif
modifier = LM_LONG;
break;
case 'z':
fmt++;
modifier = LM_SIZE_T;
break;
case 'j':
fmt++;
#if SIZEOF_INTMAX_T
modifier = LM_INTMAX_T;
#else
modifier = LM_SIZE_T;
#endif
break;
case 't':
fmt++;
#if SIZEOF_PTRDIFF_T
modifier = LM_PTRDIFF_T;
#else
modifier = LM_SIZE_T;
#endif
break;
case 'h':
fmt++;
if (*fmt == 'h') {
fmt++;
}
/* these are promoted to int, so no break */
default:
modifier = LM_STD;
break;
}
/*
* Argument extraction and printing.
* First we determine the argument type.
* Then, we convert the argument to a string.
* On exit from the switch, s points to the string that
* must be printed, s_len has the length of the string
* The precision requirements, if any, are reflected in s_len.
*
* NOTE: pad_char may be set to '0' because of the 0 flag.
* It is reset to ' ' by non-numeric formats
*/
switch (*fmt) {
case 'Z':
zvp = (zval*) va_arg(ap, zval*);
zend_make_printable_zval(zvp, &zcopy, &free_zcopy);
if (free_zcopy) {
zvp = &zcopy;
}
s_len = Z_STRLEN_P(zvp);
s = Z_STRVAL_P(zvp);
if (adjust_precision && precision < s_len) {
s_len = precision;
}
break;
case 'u':
switch(modifier) {
default:
i_num = (wide_int) va_arg(ap, unsigned int);
break;
case LM_LONG_DOUBLE:
goto fmt_error;
case LM_LONG:
i_num = (wide_int) va_arg(ap, unsigned long int);
break;
case LM_SIZE_T:
i_num = (wide_int) va_arg(ap, size_t);
break;
#if SIZEOF_LONG_LONG
case LM_LONG_LONG:
i_num = (wide_int) va_arg(ap, u_wide_int);
break;
#endif
#if SIZEOF_INTMAX_T
case LM_INTMAX_T:
i_num = (wide_int) va_arg(ap, uintmax_t);
break;
#endif
#if SIZEOF_PTRDIFF_T
case LM_PTRDIFF_T:
i_num = (wide_int) va_arg(ap, ptrdiff_t);
break;
#endif
}
/*
* The rest also applies to other integer formats, so fall
* into that case.
*/
case 'd':
case 'i':
/*
* Get the arg if we haven't already.
*/
if ((*fmt) != 'u') {
switch(modifier) {
default:
i_num = (wide_int) va_arg(ap, int);
break;
case LM_LONG_DOUBLE:
goto fmt_error;
case LM_LONG:
i_num = (wide_int) va_arg(ap, long int);
break;
case LM_SIZE_T:
#if SIZEOF_SSIZE_T
i_num = (wide_int) va_arg(ap, ssize_t);
#else
i_num = (wide_int) va_arg(ap, size_t);
#endif
break;
#if SIZEOF_LONG_LONG
case LM_LONG_LONG:
i_num = (wide_int) va_arg(ap, wide_int);
break;
#endif
#if SIZEOF_INTMAX_T
case LM_INTMAX_T:
i_num = (wide_int) va_arg(ap, intmax_t);
break;
#endif
#if SIZEOF_PTRDIFF_T
case LM_PTRDIFF_T:
i_num = (wide_int) va_arg(ap, ptrdiff_t);
break;
#endif
}
}
s = ap_php_conv_10(i_num, (*fmt) == 'u', &is_negative,
&num_buf[NUM_BUF_SIZE], &s_len);
FIX_PRECISION(adjust_precision, precision, s, s_len);
if (*fmt != 'u') {
if (is_negative) {
prefix_char = '-';
} else if (print_sign) {
prefix_char = '+';
} else if (print_blank) {
prefix_char = ' ';
}
}
break;
case 'o':
switch(modifier) {
default:
ui_num = (u_wide_int) va_arg(ap, unsigned int);
break;
case LM_LONG_DOUBLE:
goto fmt_error;
case LM_LONG:
ui_num = (u_wide_int) va_arg(ap, unsigned long int);
break;
case LM_SIZE_T:
ui_num = (u_wide_int) va_arg(ap, size_t);
break;
#if SIZEOF_LONG_LONG
case LM_LONG_LONG:
ui_num = (u_wide_int) va_arg(ap, u_wide_int);
break;
#endif
#if SIZEOF_INTMAX_T
case LM_INTMAX_T:
ui_num = (u_wide_int) va_arg(ap, uintmax_t);
break;
#endif
#if SIZEOF_PTRDIFF_T
case LM_PTRDIFF_T:
ui_num = (u_wide_int) va_arg(ap, ptrdiff_t);
break;
#endif
}
s = ap_php_conv_p2(ui_num, 3, *fmt, &num_buf[NUM_BUF_SIZE], &s_len);
FIX_PRECISION(adjust_precision, precision, s, s_len);
if (alternate_form && *s != '0') {
*--s = '0';
s_len++;
}
break;
case 'x':
case 'X':
switch(modifier) {
default:
ui_num = (u_wide_int) va_arg(ap, unsigned int);
break;
case LM_LONG_DOUBLE:
goto fmt_error;
case LM_LONG:
ui_num = (u_wide_int) va_arg(ap, unsigned long int);
break;
case LM_SIZE_T:
ui_num = (u_wide_int) va_arg(ap, size_t);
break;
#if SIZEOF_LONG_LONG
case LM_LONG_LONG:
ui_num = (u_wide_int) va_arg(ap, u_wide_int);
break;
#endif
#if SIZEOF_INTMAX_T
case LM_INTMAX_T:
ui_num = (u_wide_int) va_arg(ap, uintmax_t);
break;
#endif
#if SIZEOF_PTRDIFF_T
case LM_PTRDIFF_T:
ui_num = (u_wide_int) va_arg(ap, ptrdiff_t);
break;
#endif
}
s = ap_php_conv_p2(ui_num, 4, *fmt, &num_buf[NUM_BUF_SIZE], &s_len);
FIX_PRECISION(adjust_precision, precision, s, s_len);
if (alternate_form && i_num != 0) {
*--s = *fmt; /* 'x' or 'X' */
*--s = '0';
s_len += 2;
}
break;
case 's':
case 'v':
s = va_arg(ap, char *);
if (s != NULL) {
if (adjust_precision) {
s_len = precision;
} else {
s_len = strlen(s);
}
if (escape_xml) {
/* added: support for xml escaping */
int old_slen = s_len, i = 0;
char *old_s = s, *s_ptr;
free_s = s_ptr = s = emalloc(old_slen * 6 + 1);
do {
if (old_s[i] == '&' || old_s[i] == '"' || old_s[i] == '<') {
*s_ptr++ = '&';
switch (old_s[i]) {
case '"':
s_len += 5;
*s_ptr++ = 'q';
*s_ptr++ = 'u';
*s_ptr++ = 'o';
*s_ptr++ = 't';
break;
case '<':
s_len += 3;
*s_ptr++ = 'l';
*s_ptr++ = 't';
break;
case '&':
s_len += 4;
*s_ptr++ = 'a';
*s_ptr++ = 'm';
*s_ptr++ = 'p';
break;
}
*s_ptr++ = ';';
} else {
*s_ptr++ = old_s[i];
}
} while (i++ < old_slen);
}
} else {
s = S_NULL;
s_len = S_NULL_LEN;
}
pad_char = ' ';
break;
case 'b':
if (escape_xml) {
s = PHPDBG_G(err_buf).xml;
} else {
s = PHPDBG_G(err_buf).msg;
}
if (s != NULL) {
if (escape_xml) {
s_len = PHPDBG_G(err_buf).xmllen;
} else {
s_len = PHPDBG_G(err_buf).msglen;
}
if (adjust_precision && precision != s_len) {
s_len = precision;
}
} else {
s = S_NULL;
s_len = S_NULL_LEN;
}
pad_char = ' ';
break;
case 'r':
s_len = spprintf(&s, 0, "req=\"%lu\"", PHPDBG_G(req_id));
free_s = s;
break;
case 'f':
case 'F':
case 'e':
case 'E':
switch(modifier) {
case LM_LONG_DOUBLE:
fp_num = (double) va_arg(ap, long double);
break;
case LM_STD:
fp_num = va_arg(ap, double);
break;
default:
goto fmt_error;
}
if (zend_isnan(fp_num)) {
s = "NAN";
s_len = 3;
} else if (zend_isinf(fp_num)) {
s = "INF";
s_len = 3;
} else {
#ifdef HAVE_LOCALE_H
if (!lconv) {
lconv = localeconv();
}
#endif
s = php_conv_fp((*fmt == 'f')?'F':*fmt, fp_num, alternate_form,
(adjust_precision == NO) ? FLOAT_DIGITS : precision,
(*fmt == 'f')?LCONV_DECIMAL_POINT:'.',
&is_negative, &num_buf[1], &s_len);
if (is_negative)
prefix_char = '-';
else if (print_sign)
prefix_char = '+';
else if (print_blank)
prefix_char = ' ';
}
break;
case 'g':
case 'k':
case 'G':
case 'H':
switch(modifier) {
case LM_LONG_DOUBLE:
fp_num = (double) va_arg(ap, long double);
break;
case LM_STD:
fp_num = va_arg(ap, double);
break;
default:
goto fmt_error;
}
if (zend_isnan(fp_num)) {
s = "NAN";
s_len = 3;
break;
} else if (zend_isinf(fp_num)) {
if (fp_num > 0) {
s = "INF";
s_len = 3;
} else {
s = "-INF";
s_len = 4;
}
break;
}
if (adjust_precision == NO) {
precision = FLOAT_DIGITS;
} else if (precision == 0) {
precision = 1;
}
/*
* * We use &num_buf[ 1 ], so that we have room for the sign
*/
#ifdef HAVE_LOCALE_H
if (!lconv) {
lconv = localeconv();
}
#endif
s = php_gcvt(fp_num, precision, (*fmt=='H' || *fmt == 'k') ? '.' : LCONV_DECIMAL_POINT, (*fmt == 'G' || *fmt == 'H')?'E':'e', &num_buf[1]);
if (*s == '-') {
prefix_char = *s++;
} else if (print_sign) {
prefix_char = '+';
} else if (print_blank) {
prefix_char = ' ';
}
s_len = strlen(s);
if (alternate_form && (strchr(s, '.')) == NULL) {
s[s_len++] = '.';
}
break;
case 'c':
char_buf[0] = (char) (va_arg(ap, int));
s = &char_buf[0];
s_len = 1;
pad_char = ' ';
break;
case '%':
char_buf[0] = '%';
s = &char_buf[0];
s_len = 1;
pad_char = ' ';
break;
case 'n':
*(va_arg(ap, int *)) = cc;
goto skip_output;
/*
* Always extract the argument as a "char *" pointer. We
* should be using "void *" but there are still machines
* that don't understand it.
* If the pointer size is equal to the size of an unsigned
* integer we convert the pointer to a hex number, otherwise
* we print "%p" to indicate that we don't handle "%p".
*/
case 'p':
if (sizeof(char *) <= sizeof(u_wide_int)) {
ui_num = (u_wide_int)((size_t) va_arg(ap, char *));
s = ap_php_conv_p2(ui_num, 4, 'x',
&num_buf[NUM_BUF_SIZE], &s_len);
if (ui_num != 0) {
*--s = 'x';
*--s = '0';
s_len += 2;
}
} else {
s = "%p";
s_len = 2;
}
pad_char = ' ';
break;
case NUL:
/*
* The last character of the format string was %.
* We ignore it.
*/
continue;
fmt_error:
php_error(E_ERROR, "Illegal length modifier specified '%c' in s[np]printf call", *fmt);
/*
* The default case is for unrecognized %'s.
* We print %<char> to help the user identify what
* option is not understood.
* This is also useful in case the user wants to pass
* the output of format_converter to another function
* that understands some other %<char> (like syslog).
* Note that we can't point s inside fmt because the
* unknown <char> could be preceded by width etc.
*/
default:
char_buf[0] = '%';
char_buf[1] = *fmt;
s = char_buf;
s_len = 2;
pad_char = ' ';
break;
}
if (prefix_char != NUL) {
*--s = prefix_char;
s_len++;
}
if (adjust_width && adjust == RIGHT && min_width > s_len) {
if (pad_char == '0' && prefix_char != NUL) {
INS_CHAR(*s, sp, bep, cc)
s++;
s_len--;
min_width--;
}
PAD(min_width, s_len, pad_char);
}
/*
* Print the string s.
*/
for (i = s_len; i != 0; i--) {
INS_CHAR(*s, sp, bep, cc);
s++;
}
if (adjust_width && adjust == LEFT && min_width > s_len)
PAD(min_width, s_len, pad_char);
if (free_zcopy) {
zval_dtor(&zcopy);
}
}
skip_output:
if (free_s) {
efree(free_s);
free_s = NULL;
}
fmt++;
}
odp->nextb = sp;
return (cc);
}
static void strx_printv(int *ccp, char *buf, size_t len, const char *format, zend_bool escape_xml, va_list ap TSRMLS_DC) {
buffy od;
int cc;
/*
* First initialize the descriptor
* Notice that if no length is given, we initialize buf_end to the
* highest possible address.
*/
if (len == 0) {
od.buf_end = (char *) ~0;
od.nextb = (char *) ~0;
} else {
od.buf_end = &buf[len-1];
od.nextb = buf;
}
/*
* Do the conversion
*/
cc = format_converter(&od, format, escape_xml, ap TSRMLS_CC);
if (len != 0 && od.nextb <= od.buf_end) {
*(od.nextb) = '\0';
}
if (ccp) {
*ccp = cc;
}
}
static int phpdbg_xml_vsnprintf(char *buf, size_t len, const char *format, zend_bool escape_xml, va_list ap TSRMLS_DC) {
int cc;
strx_printv(&cc, buf, len, format, escape_xml, ap TSRMLS_CC);
return (cc);
}
PHPAPI int phpdbg_xml_vasprintf(char **buf, const char *format, zend_bool escape_xml, va_list ap TSRMLS_DC) {
va_list ap2;
int cc;
va_copy(ap2, ap);
cc = phpdbg_xml_vsnprintf(NULL, 0, format, escape_xml, ap2 TSRMLS_CC);
va_end(ap2);
*buf = NULL;
if (cc >= 0) {
if ((*buf = emalloc(++cc)) != NULL) {
if ((cc = phpdbg_xml_vsnprintf(*buf, cc, format, escape_xml, ap TSRMLS_CC)) < 0) {
efree(*buf);
*buf = NULL;
}
}
}
return cc;
}
/* copy end */
static int phpdbg_encode_xml(char **buf, char *msg, int msglen, int from, char *to) {
int i;
int tolen = to ? strlen(to) : 5;
char *tmp = *buf = emalloc(msglen * tolen);
for (i = 0; i++ < msglen; msg++) {
if (*msg == '&') {
memcpy(tmp, ZEND_STRL("&amp;"));
tmp += sizeof("&amp;") - 1;
} else if (*msg == '<') {
memcpy(tmp, ZEND_STRL("&lt;"));
tmp += sizeof("&lt;") - 1;
} else if (((int) *msg) == from) {
memcpy(tmp, to, tolen);
tmp += tolen;
} else {
*tmp++ = *msg;
}
}
{
int len = tmp - *buf;
*buf = erealloc(*buf, len);
return len;
}
}
static int phpdbg_process_print(int fd, int type, const char *tag, const char *msg, int msglen, const char *xml, int xmllen TSRMLS_DC) {
char *msgout = NULL, *buf;
int msgoutlen, xmloutlen, buflen;
const char *severity;
if ((PHPDBG_G(flags) & PHPDBG_WRITE_XML) && PHPDBG_G(in_script_xml) && PHPDBG_G(in_script_xml) != type) {
write(fd, ZEND_STRL("</stream>"));
PHPDBG_G(in_script_xml) = 0;
}
/* TODO(anyone) colours */
switch (type) {
case P_ERROR:
severity = "error";
if (!PHPDBG_G(last_was_newline)) {
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
write(fd, ZEND_STRL("<phpdbg>\n</phpdbg>"));
} else {
write(fd, ZEND_STRL("\n"));
}
PHPDBG_G(last_was_newline) = 1;
}
if (PHPDBG_G(flags) & PHPDBG_IS_COLOURED) {
msgoutlen = spprintf(&msgout, 0, "\033[%sm[%.*s]\033[0m\n", PHPDBG_G(colors)[PHPDBG_COLOR_ERROR]->code, msglen, msg);
} else {
msgoutlen = spprintf(&msgout, 0, "[%.*s]\n", msglen, msg);
}
break;
case P_NOTICE:
severity = "notice";
if (!PHPDBG_G(last_was_newline)) {
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
write(fd, ZEND_STRL("<phpdbg>\n</phpdbg>"));
} else {
write(fd, ZEND_STRL("\n"));
}
PHPDBG_G(last_was_newline) = 1;
}
if (PHPDBG_G(flags) & PHPDBG_IS_COLOURED) {
msgoutlen = spprintf(&msgout, 0, "\033[%sm[%.*s]\033[0m\n", PHPDBG_G(colors)[PHPDBG_COLOR_NOTICE]->code, msglen, msg);
} else {
msgoutlen = spprintf(&msgout, 0, "[%.*s]\n", msglen, msg);
}
break;
case P_WRITELN:
severity = "normal";
if (msg) {
msgoutlen = spprintf(&msgout, 0, "%.*s\n", msglen, msg);
} else {
msgoutlen = 1;
msgout = estrdup("\n");
}
PHPDBG_G(last_was_newline) = 1;
break;
case P_WRITE:
severity = "normal";
if (msg) {
msgout = estrndup(msg, msglen);
msgoutlen = msglen;
PHPDBG_G(last_was_newline) = msg[msglen - 1] == '\n';
} else {
msgoutlen = 0;
msgout = estrdup("");
}
break;
case P_STDOUT:
case P_STDERR:
if (msg) {
PHPDBG_G(last_was_newline) = msg[msglen - 1] == '\n';
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
if (PHPDBG_G(in_script_xml) != type) {
char *stream_buf;
int stream_buflen = spprintf(&stream_buf, 0, "<stream type=\"%s\">", type == P_STDERR ? "stderr" : "stdout");
write(fd, stream_buf, stream_buflen);
efree(stream_buf);
PHPDBG_G(in_script_xml) = type;
}
buf = php_escape_html_entities((unsigned char *) msg, msglen, (size_t *) &buflen, 0, ENT_NOQUOTES, PG(internal_encoding) && PG(internal_encoding)[0] ? PG(internal_encoding) : (SG(default_charset) ? SG(default_charset) : "UTF-8") TSRMLS_CC);
write(fd, buf, buflen);
efree(buf);
} else {
write(fd, msg, msglen);
}
return msglen;
}
break;
/* no formatting on logging output */
case P_LOG:
severity = "log";
if (msg) {
struct timeval tp;
if (gettimeofday(&tp, NULL) == SUCCESS) {
msgoutlen = spprintf(&msgout, 0, "[%ld %.8F]: %.*s\n", tp.tv_sec, tp.tv_usec / 1000000., msglen, msg);
} else {
msgoutlen = FAILURE;
}
}
break;
}
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
char *xmlout;
if (PHPDBG_G(req_id)) {
char *xmlbuf = NULL;
xmllen = spprintf(&xmlbuf, 0, "req=\"%lu\" %.*s", PHPDBG_G(req_id), xmllen, xml);
xml = xmlbuf;
}
if (msgout) {
// unsigned char *tmp = msgout;
// buf = php_escape_html_entities(tmp, msgoutlen, (size_t *) &buflen, 0, ENT_COMPAT, PG(internal_encoding) && PG(internal_encoding)[0] ? PG(internal_encoding) : (SG(default_charset) ? SG(default_charset) : "UTF-8") TSRMLS_CC);
buflen = phpdbg_encode_xml(&buf, msgout, msgoutlen, '"', "&quot;");
xmloutlen = spprintf(&xmlout, 0, "<%s severity=\"%s\" %.*s msgout=\"%.*s\" />", tag, severity, xmllen, xml, buflen, buf);
efree(buf);
} else {
xmloutlen = spprintf(&xmlout, 0, "<%s severity=\"%s\" %.*s msgout=\"\" />", tag, severity, xmllen, xml);
}
write(fd, xmlout, xmloutlen);
efree(xmlout);
} else if (msgout) {
write(fd, msgout, msgoutlen);
}
if (PHPDBG_G(req_id) && (PHPDBG_G(flags) & PHPDBG_WRITE_XML)) {
efree((char *) xml);
}
if (msgout) {
efree(msgout);
}
return msgout ? msgoutlen : xmloutlen;
} /* }}} */
PHPDBG_API int phpdbg_vprint(int type TSRMLS_DC, int fd, const char *tag, const char *xmlfmt, const char *strfmt, va_list args) {
char *msg = NULL, *xml = NULL;
int msglen = 0, xmllen = 0;
int len;
va_list argcpy;
if (strfmt != NULL && strlen(strfmt) > 0L) {
va_copy(argcpy, args);
msglen = phpdbg_xml_vasprintf(&msg, strfmt, 0, argcpy TSRMLS_CC);
va_end(argcpy);
}
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
if (xmlfmt != NULL && strlen(xmlfmt) > 0L) {
va_copy(argcpy, args);
xmllen = phpdbg_xml_vasprintf(&xml, xmlfmt, 1, argcpy TSRMLS_CC);
va_end(argcpy);
}
}
if (PHPDBG_G(err_buf).active && type != P_STDOUT && type != P_STDERR) {
PHPDBG_G(err_buf).type = type;
PHPDBG_G(err_buf).fd = fd;
PHPDBG_G(err_buf).tag = estrdup(tag);
PHPDBG_G(err_buf).msg = msg;
PHPDBG_G(err_buf).msglen = msglen;
PHPDBG_G(err_buf).xml = xml;
PHPDBG_G(err_buf).xmllen = xmllen;
return msglen;
}
len = phpdbg_process_print(fd, type, tag, msg, msglen, xml, xmllen TSRMLS_CC);
if (msg) {
efree(msg);
}
if (xml) {
efree(xml);
}
return len;
}
PHPDBG_API void phpdbg_free_err_buf(TSRMLS_D) {
if (PHPDBG_G(err_buf).type == 0) {
return;
}
PHPDBG_G(err_buf).type = 0;
efree(PHPDBG_G(err_buf).tag);
efree(PHPDBG_G(err_buf).msg);
efree(PHPDBG_G(err_buf).xml);
}
PHPDBG_API void phpdbg_activate_err_buf(zend_bool active TSRMLS_DC) {
PHPDBG_G(err_buf).active = active;
}
PHPDBG_API int phpdbg_output_err_buf(const char *tag, const char *xmlfmt, const char *strfmt TSRMLS_DC, ...) {
int len;
va_list args;
int errbuf_active = PHPDBG_G(err_buf).active;
PHPDBG_G(err_buf).active = 0;
#ifdef ZTS
va_start(args, tsrm_ls);
#else
va_start(args, strfmt);
#endif
len = phpdbg_vprint(PHPDBG_G(err_buf).type TSRMLS_CC, PHPDBG_G(err_buf).fd, tag ? tag : PHPDBG_G(err_buf).tag, xmlfmt, strfmt, args);
va_end(args);
PHPDBG_G(err_buf).active = errbuf_active;
phpdbg_free_err_buf(TSRMLS_C);
return len;
}
PHPDBG_API int phpdbg_print(int type TSRMLS_DC, int fd, const char *tag, const char *xmlfmt, const char *strfmt, ...) {
va_list args;
int len;
va_start(args, strfmt);
len = phpdbg_vprint(type TSRMLS_CC, fd, tag, xmlfmt, strfmt, args);
va_end(args);
return len;
}
PHPDBG_API int phpdbg_xml_internal(int fd TSRMLS_DC, const char *fmt, ...) {
int len = 0;
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
va_list args;
char *buffer;
int buflen;
va_start(args, fmt);
buflen = phpdbg_xml_vasprintf(&buffer, fmt, 1, args TSRMLS_CC);
va_end(args);
if (PHPDBG_G(in_script_xml)) {
write(fd, ZEND_STRL("</stream>"));
PHPDBG_G(in_script_xml) = 0;
}
len = write(fd, buffer, buflen);
efree(buffer);
}
return len;
}
PHPDBG_API int phpdbg_log_internal(int fd TSRMLS_DC, const char *fmt, ...) {
va_list args;
char *buffer;
int buflen;
int len = 0;
va_start(args, fmt);
buflen = vspprintf(&buffer, 0, fmt, args);
va_end(args);
len = write(fd, buffer, buflen);
efree(buffer);
return len;
}
PHPDBG_API int phpdbg_out_internal(int fd TSRMLS_DC, const char *fmt, ...) {
va_list args;
char *buffer;
int buflen;
int len = 0;
va_start(args, fmt);
buflen = vspprintf(&buffer, 0, fmt, args);
va_end(args);
if (PHPDBG_G(flags) & PHPDBG_WRITE_XML) {
char *msg;
int msglen;
msglen = phpdbg_encode_xml(&msg, buffer, buflen, 256, NULL);
if (PHPDBG_G(in_script_xml)) {
write(fd, ZEND_STRL("</stream>"));
PHPDBG_G(in_script_xml) = 0;
}
write(fd, ZEND_STRL("<phpdbg>"));
len = write(fd, msg, msglen);
write(fd, ZEND_STRL("</phpdbg>"));
} else {
len = write(fd, buffer, buflen);
}
return len;
}
PHPDBG_API int phpdbg_rlog(int fd, const char *fmt, ...) { /* {{{ */
int rc = 0;
va_list args;
struct timeval tp;
va_start(args, fmt);
if (gettimeofday(&tp, NULL) == SUCCESS) {
char friendly[100];
char *format = NULL, *buffer = NULL, *outbuf = NULL;
const time_t tt = tp.tv_sec;
strftime(friendly, 100, "%a %b %d %T.%%04d %Y", localtime(&tt));
spprintf(&buffer, 0, friendly, tp.tv_usec/1000);
spprintf(&format, 0, "[%s]: %s\n", buffer, fmt);
rc = vspprintf(&outbuf, 0, format, args);
if (outbuf) {
rc = write(fd, outbuf, rc);
efree(outbuf);
}
efree(format);
efree(buffer);
}
va_end(args);
return rc;
} /* }}} */
PHPDBG_API const phpdbg_color_t *phpdbg_get_color(const char *name, size_t name_length TSRMLS_DC) /* {{{ */
{
const phpdbg_color_t *color = colors;
while (color && color->name) {
if (name_length == color->name_length &&
memcmp(name, color->name, name_length) == SUCCESS) {
phpdbg_debug("phpdbg_get_color(%s, %lu): %s", name, name_length, color->code);
return color;
}
++color;
}
phpdbg_debug("phpdbg_get_color(%s, %lu): failed", name, name_length);
return NULL;
} /* }}} */
PHPDBG_API void phpdbg_set_color(int element, const phpdbg_color_t *color TSRMLS_DC) /* {{{ */
{
PHPDBG_G(colors)[element] = color;
} /* }}} */
PHPDBG_API void phpdbg_set_color_ex(int element, const char *name, size_t name_length TSRMLS_DC) /* {{{ */
{
const phpdbg_color_t *color = phpdbg_get_color(name, name_length TSRMLS_CC);
if (color) {
phpdbg_set_color(element, color TSRMLS_CC);
} else PHPDBG_G(colors)[element] = colors;
} /* }}} */
PHPDBG_API const phpdbg_color_t* phpdbg_get_colors(TSRMLS_D) /* {{{ */
{
return colors;
} /* }}} */
PHPDBG_API int phpdbg_get_element(const char *name, size_t len TSRMLS_DC) {
const phpdbg_element_t *element = elements;
while (element && element->name) {
if (len == element->name_length) {
if (strncasecmp(name, element->name, len) == SUCCESS) {
return element->id;
}
}
element++;
}
return PHPDBG_COLOR_INVALID;
}
PHPDBG_API void phpdbg_set_prompt(const char *prompt TSRMLS_DC) /* {{{ */
{
/* free formatted prompt */
if (PHPDBG_G(prompt)[1]) {
free(PHPDBG_G(prompt)[1]);
PHPDBG_G(prompt)[1] = NULL;
}
/* free old prompt */
if (PHPDBG_G(prompt)[0]) {
free(PHPDBG_G(prompt)[0]);
PHPDBG_G(prompt)[0] = NULL;
}
/* copy new prompt */
PHPDBG_G(prompt)[0] = strdup(prompt);
} /* }}} */
PHPDBG_API const char *phpdbg_get_prompt(TSRMLS_D) /* {{{ */
{
/* find cached prompt */
if (PHPDBG_G(prompt)[1]) {
return PHPDBG_G(prompt)[1];
}
/* create cached prompt */
#ifndef HAVE_LIBEDIT
/* TODO: libedit doesn't seems to support coloured prompt */
if ((PHPDBG_G(flags) & PHPDBG_IS_COLOURED)) {
asprintf(
&PHPDBG_G(prompt)[1], "\033[%sm%s\033[0m ",
PHPDBG_G(colors)[PHPDBG_COLOR_PROMPT]->code,
PHPDBG_G(prompt)[0]);
} else
#endif
{
asprintf(
&PHPDBG_G(prompt)[1], "%s ",
PHPDBG_G(prompt)[0]);
}
return PHPDBG_G(prompt)[1];
} /* }}} */
int phpdbg_rebuild_symtable(TSRMLS_D) {
if (!EG(active_op_array)) {
phpdbg_error("inactive", "type=\"op_array\"", "No active op array!");
return FAILURE;
}
if (!EG(active_symbol_table)) {
zend_rebuild_symbol_table(TSRMLS_C);
if (!EG(active_symbol_table)) {
phpdbg_error("inactive", "type=\"symbol_table\"", "No active symbol table!");
return FAILURE;
}
}
return SUCCESS;
}
PHPDBG_API int phpdbg_get_terminal_width(TSRMLS_D) /* {{{ */
{
int columns;
#ifdef _WIN32
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
columns = csbi.srWindow.Right - csbi.srWindow.Left + 1;
#elif defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ)
struct winsize w;
columns = ioctl(fileno(stdout), TIOCGWINSZ, &w) == 0 ? w.ws_col : 80;
#else
columns = 80;
#endif
return columns;
} /* }}} */
PHPDBG_API void phpdbg_set_async_io(int fd) {
#ifndef _WIN32
int flags;
fcntl(STDIN_FILENO, F_SETOWN, getpid());
flags = fcntl(STDIN_FILENO, F_GETFL);
fcntl(STDIN_FILENO, F_SETFL, flags | FASYNC);
#endif
}
int phpdbg_safe_class_lookup(const char *name, int name_length, zend_class_entry ***ce TSRMLS_DC) {
if (PHPDBG_G(flags) & PHPDBG_IN_SIGNAL_HANDLER) {
char *lc_name, *lc_free;
int lc_length, ret = FAILURE;
if (name == NULL || !name_length) {
return FAILURE;
}
lc_free = lc_name = emalloc(name_length + 1);
zend_str_tolower_copy(lc_name, name, name_length);
lc_length = name_length + 1;
if (lc_name[0] == '\\') {
lc_name += 1;
lc_length -= 1;
}
phpdbg_try_access {
ret = zend_hash_find(EG(class_table), lc_name, lc_length, (void **) &ce);
} phpdbg_catch_access {
phpdbg_error("signalsegv", "class=\"%.*s\"", "Could not fetch class %.*s, invalid data source", name_length, name);
} phpdbg_end_try_access();
efree(lc_free);
return ret;
} else {
return zend_lookup_class(name, name_length, ce TSRMLS_CC);
}
}
char *phpdbg_get_property_key(char *key) {
if (*key != 0) {
return key;
}
return strchr(key + 1, 0) + 1;
}
static int phpdbg_parse_variable_arg_wrapper(char *name, size_t len, char *keyname, size_t keylen, HashTable *parent, zval **zv, phpdbg_parse_var_func callback TSRMLS_DC) {
return callback(name, len, keyname, keylen, parent, zv TSRMLS_CC);
}
PHPDBG_API int phpdbg_parse_variable(char *input, size_t len, HashTable *parent, size_t i, phpdbg_parse_var_func callback, zend_bool silent TSRMLS_DC) {
return phpdbg_parse_variable_with_arg(input, len, parent, i, (phpdbg_parse_var_with_arg_func) phpdbg_parse_variable_arg_wrapper, silent, callback TSRMLS_CC);
}
PHPDBG_API int phpdbg_parse_variable_with_arg(char *input, size_t len, HashTable *parent, size_t i, phpdbg_parse_var_with_arg_func callback, zend_bool silent, void *arg TSRMLS_DC) {
int ret = FAILURE;
zend_bool new_index = 1;
char *last_index;
size_t index_len = 0;
zval **zv;
if (len < 2 || *input != '$') {
goto error;
}
while (i++ < len) {
if (i == len) {
new_index = 1;
} else {
switch (input[i]) {
case '[':
new_index = 1;
break;
case ']':
break;
case '>':
if (last_index[index_len - 1] == '-') {
new_index = 1;
index_len--;
}
break;
default:
if (new_index) {
last_index = input + i;
new_index = 0;
}
if (input[i - 1] == ']') {
goto error;
}
index_len++;
}
}
if (new_index && index_len == 0) {
HashPosition position;
for (zend_hash_internal_pointer_reset_ex(parent, &position);
zend_hash_get_current_data_ex(parent, (void **)&zv, &position) == SUCCESS;
zend_hash_move_forward_ex(parent, &position)) {
if (i == len || (i == len - 1 && input[len - 1] == ']')) {
zval *key = emalloc(sizeof(zval));
size_t namelen;
char *name;
char *keyname = estrndup(last_index, index_len);
zend_hash_get_current_key_zval_ex(parent, key, &position);
convert_to_string(key);
name = emalloc(i + Z_STRLEN_P(key) + 2);
namelen = sprintf(name, "%.*s%s%s", (int)i, input, phpdbg_get_property_key(Z_STRVAL_P(key)), input[len - 1] == ']'?"]":"");
efree(key);
ret = callback(name, namelen, keyname, index_len, parent, zv, arg TSRMLS_CC) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
} else if (Z_TYPE_PP(zv) == IS_OBJECT) {
phpdbg_parse_variable_with_arg(input, len, Z_OBJPROP_PP(zv), i, callback, silent, arg TSRMLS_CC);
} else if (Z_TYPE_PP(zv) == IS_ARRAY) {
phpdbg_parse_variable_with_arg(input, len, Z_ARRVAL_PP(zv), i, callback, silent, arg TSRMLS_CC);
} else {
/* Ignore silently */
}
}
return ret;
} else if (new_index) {
char last_chr = last_index[index_len];
last_index[index_len] = 0;
if (zend_symtable_find(parent, last_index, index_len + 1, (void **)&zv) == FAILURE) {
if (!silent) {
phpdbg_error("variable", "type=\"undefined\" variable=\"%.*s\"", "%.*s is undefined", (int) i, input);
}
return FAILURE;
}
last_index[index_len] = last_chr;
if (i == len) {
char *name = estrndup(input, len);
char *keyname = estrndup(last_index, index_len);
ret = callback(name, len, keyname, index_len, parent, zv, arg TSRMLS_CC) == SUCCESS || ret == SUCCESS?SUCCESS:FAILURE;
} else if (Z_TYPE_PP(zv) == IS_OBJECT) {
parent = Z_OBJPROP_PP(zv);
} else if (Z_TYPE_PP(zv) == IS_ARRAY) {
parent = Z_ARRVAL_PP(zv);
} else {
phpdbg_error("variable", "type=\"notiterable\" variable=\"%.*s\"", "%.*s is nor an array nor an object", (int) i, input);
return FAILURE;
}
index_len = 0;
}
}
return ret;
error:
phpdbg_error("variable", "type=\"invalidinput\"", "Malformed input");
return FAILURE;
}
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