Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master

1 files changed, 479 insertions, 0 deletions

diff --git a/ext/fileinfo/libmagic/funcs.c b/ext/fileinfo/libmagic/funcs.c
new file mode 100644
index 0000000..2b37929
--- /dev/null
+++ b/ext/fileinfo/libmagic/funcs.c
@@ -0,0 +1,479 @@
+/*
+ * Copyright (c) Christos Zoulas 2003.
+ * All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice immediately at the beginning of the file, without modification,
+ *    this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include "file.h"
+
+#ifndef	lint
+FILE_RCSID("@(#)$File: funcs.c,v 1.60 2011/12/08 12:38:24 rrt Exp $")
+#endif	/* lint */
+
+#include "magic.h"
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#if defined(HAVE_WCHAR_H)
+#include <wchar.h>
+#endif
+#if defined(HAVE_WCTYPE_H)
+#include <wctype.h>
+#endif
+
+#ifndef SIZE_MAX 
+# define SIZE_MAX ((size_t) -1) 
+#endif
+
+#ifndef PREG_OFFSET_CAPTURE
+# define PREG_OFFSET_CAPTURE                 (1<<8)
+#endif
+
+extern public void convert_libmagic_pattern(zval *pattern, int options);
+
+/*
+ * Like printf, only we append to a buffer.
+ */
+protected int
+file_printf(struct magic_set *ms, const char *fmt, ...)
+{
+	va_list ap;
+	int len;
+	char *buf = NULL, *newstr;
+
+	va_start(ap, fmt);
+	len = vspprintf(&buf, 0, fmt, ap);
+	va_end(ap);
+
+	if (ms->o.buf != NULL) {
+		len = spprintf(&newstr, 0, "%s%s", ms->o.buf, (buf ? buf : ""));
+		if (buf) {
+			efree(buf);
+		}
+		efree(ms->o.buf);
+		ms->o.buf = newstr;
+	} else {
+		ms->o.buf = buf;
+	}
+	return 0;
+}
+
+/*
+ * error - print best error message possible
+ */
+/*VARARGS*/
+private void
+file_error_core(struct magic_set *ms, int error, const char *f, va_list va,
+    size_t lineno)
+{
+	char *buf = NULL;
+	
+	/* Only the first error is ok */
+	if (ms->event_flags & EVENT_HAD_ERR)
+		return;
+	if (lineno != 0) {
+		efree(ms->o.buf);
+		ms->o.buf = NULL;
+		file_printf(ms, "line %" SIZE_T_FORMAT "u: ", lineno);
+	}
+
+	vspprintf(&buf, 0, f, va);
+	va_end(va);
+	
+	if (error > 0) {
+		file_printf(ms, "%s (%s)", (*buf ? buf : ""), strerror(error));
+	} else if (*buf) {
+		file_printf(ms, "%s", buf);
+	}
+	
+	if (buf) {
+		efree(buf);
+	}
+
+	ms->event_flags |= EVENT_HAD_ERR;
+	ms->error = error;
+}
+
+/*VARARGS*/
+protected void
+file_error(struct magic_set *ms, int error, const char *f, ...)
+{
+	va_list va;
+	va_start(va, f);
+	file_error_core(ms, error, f, va, 0);
+	va_end(va);
+}
+
+/*
+ * Print an error with magic line number.
+ */
+/*VARARGS*/
+protected void
+file_magerror(struct magic_set *ms, const char *f, ...)
+{
+	va_list va;
+	va_start(va, f);
+	file_error_core(ms, 0, f, va, ms->line);
+	va_end(va);
+}
+
+protected void
+file_oomem(struct magic_set *ms, size_t len)
+{
+	file_error(ms, errno, "cannot allocate %" SIZE_T_FORMAT "u bytes",
+	    len);
+}
+
+protected void
+file_badseek(struct magic_set *ms)
+{
+	file_error(ms, errno, "error seeking");
+}
+
+protected void
+file_badread(struct magic_set *ms)
+{
+	file_error(ms, errno, "error reading");
+}
+
+protected int
+file_buffer(struct magic_set *ms, php_stream *stream, const char *inname, const void *buf,
+    size_t nb)
+{
+	int m = 0, rv = 0, looks_text = 0;
+	int mime = ms->flags & MAGIC_MIME;
+	const unsigned char *ubuf = CAST(const unsigned char *, buf);
+	unichar *u8buf = NULL;
+	size_t ulen;
+	const char *code = NULL;
+	const char *code_mime = "binary";
+	const char *type = NULL;
+
+
+
+	if (nb == 0) {
+		if ((!mime || (mime & MAGIC_MIME_TYPE)) &&
+		    file_printf(ms, mime ? "application/x-empty" :
+		    "empty") == -1)
+			return -1;
+		return 1;
+	} else if (nb == 1) {
+		if ((!mime || (mime & MAGIC_MIME_TYPE)) &&
+		    file_printf(ms, mime ? "application/octet-stream" :
+		    "very short file (no magic)") == -1)
+			return -1;
+		return 1;
+	}
+
+	if ((ms->flags & MAGIC_NO_CHECK_ENCODING) == 0) {
+		looks_text = file_encoding(ms, ubuf, nb, &u8buf, &ulen,
+		    &code, &code_mime, &type);
+	}
+
+#if defined(__EMX__)
+	if ((ms->flags & MAGIC_NO_CHECK_APPTYPE) == 0 && inname) {
+		switch (file_os2_apptype(ms, inname, buf, nb)) {
+		case -1:
+			return -1;
+		case 0:
+			break;
+		default:
+			return 1;
+		}
+	}
+#endif
+
+#if PHP_FILEINFO_UNCOMPRESS
+	if ((ms->flags & MAGIC_NO_CHECK_COMPRESS) == 0)
+		if ((m = file_zmagic(ms, stream, inname, ubuf, nb)) != 0) {
+			if ((ms->flags & MAGIC_DEBUG) != 0)
+				(void)fprintf(stderr, "zmagic %d\n", m);
+			goto done;
+		}
+#endif
+	/* Check if we have a tar file */
+	if ((ms->flags & MAGIC_NO_CHECK_TAR) == 0)
+		if ((m = file_is_tar(ms, ubuf, nb)) != 0) {
+			if ((ms->flags & MAGIC_DEBUG) != 0)
+				(void)fprintf(stderr, "tar %d\n", m);
+			goto done;
+		}
+
+	/* Check if we have a CDF file */
+	if ((ms->flags & MAGIC_NO_CHECK_CDF) == 0) {
+		int fd;
+		TSRMLS_FETCH();
+		if (stream && SUCCESS == php_stream_cast(stream, PHP_STREAM_AS_FD, (void **)&fd, 0)) {
+			if ((m = file_trycdf(ms, fd, ubuf, nb)) != 0) {
+				if ((ms->flags & MAGIC_DEBUG) != 0)
+					(void)fprintf(stderr, "cdf %d\n", m);
+				goto done;
+			}
+		}
+	}
+
+	/* try soft magic tests */
+	if ((ms->flags & MAGIC_NO_CHECK_SOFT) == 0)
+		if ((m = file_softmagic(ms, ubuf, nb, BINTEST,
+		    looks_text)) != 0) {
+			if ((ms->flags & MAGIC_DEBUG) != 0)
+				(void)fprintf(stderr, "softmagic %d\n", m);
+#ifdef BUILTIN_ELF
+			if ((ms->flags & MAGIC_NO_CHECK_ELF) == 0 && m == 1 &&
+			    nb > 5 && fd != -1) {
+				/*
+				 * We matched something in the file, so this
+				 * *might* be an ELF file, and the file is at
+				 * least 5 bytes long, so if it's an ELF file
+				 * it has at least one byte past the ELF magic
+				 * number - try extracting information from the
+				 * ELF headers that cannot easily * be
+				 * extracted with rules in the magic file.
+				 */
+				if ((m = file_tryelf(ms, fd, ubuf, nb)) != 0)
+					if ((ms->flags & MAGIC_DEBUG) != 0)
+						(void)fprintf(stderr,
+						    "elf %d\n", m);
+			}
+#endif
+			goto done;
+		}
+
+	/* try text properties */
+	if ((ms->flags & MAGIC_NO_CHECK_TEXT) == 0) {
+
+		if ((m = file_ascmagic(ms, ubuf, nb, looks_text)) != 0) {
+			if ((ms->flags & MAGIC_DEBUG) != 0)
+				(void)fprintf(stderr, "ascmagic %d\n", m);
+			goto done;
+		}
+
+		/* try to discover text encoding */
+		if ((ms->flags & MAGIC_NO_CHECK_ENCODING) == 0) {
+			if (looks_text == 0)
+				if ((m = file_ascmagic_with_encoding( ms, ubuf,
+				    nb, u8buf, ulen, code, type, looks_text))
+				    != 0) {
+					if ((ms->flags & MAGIC_DEBUG) != 0)
+						(void)fprintf(stderr,
+						    "ascmagic/enc %d\n", m);
+					goto done;
+				}
+		}
+	}
+
+	/* give up */
+	m = 1;
+	if ((!mime || (mime & MAGIC_MIME_TYPE)) &&
+	    file_printf(ms, mime ? "application/octet-stream" : "data") == -1) {
+	    rv = -1;
+	}
+ done:
+	if ((ms->flags & MAGIC_MIME_ENCODING) != 0) {
+		if (ms->flags & MAGIC_MIME_TYPE)
+			if (file_printf(ms, "; charset=") == -1)
+				rv = -1;
+		if (file_printf(ms, "%s", code_mime) == -1)
+			rv = -1;
+	}
+	free(u8buf);
+	if (rv)
+		return rv;
+
+	return m;
+}
+
+protected int
+file_reset(struct magic_set *ms)
+{
+	if (ms->mlist == NULL) {
+		file_error(ms, 0, "no magic files loaded");
+		return -1;
+	}
+	if (ms->o.buf) {
+		efree(ms->o.buf);
+		ms->o.buf = NULL;
+	}
+	if (ms->o.pbuf) {
+		efree(ms->o.pbuf);
+		ms->o.pbuf = NULL;
+	}
+	ms->event_flags &= ~EVENT_HAD_ERR;
+	ms->error = -1;
+	return 0;
+}
+
+#define OCTALIFY(n, o)	\
+	/*LINTED*/ \
+	(void)(*(n)++ = '\\', \
+	*(n)++ = (((uint32_t)*(o) >> 6) & 3) + '0', \
+	*(n)++ = (((uint32_t)*(o) >> 3) & 7) + '0', \
+	*(n)++ = (((uint32_t)*(o) >> 0) & 7) + '0', \
+	(o)++)
+
+protected const char *
+file_getbuffer(struct magic_set *ms)
+{
+	char *pbuf, *op, *np;
+	size_t psize, len;
+
+	if (ms->event_flags & EVENT_HAD_ERR)
+		return NULL;
+
+	if (ms->flags & MAGIC_RAW)
+		return ms->o.buf;
+
+	if (ms->o.buf == NULL)
+		return NULL;
+
+	/* * 4 is for octal representation, + 1 is for NUL */
+	len = strlen(ms->o.buf);
+	if (len > (SIZE_MAX - 1) / 4) {
+		return NULL;
+	}
+	psize = len * 4 + 1;
+	pbuf = erealloc(ms->o.pbuf, psize);
+	ms->o.pbuf = pbuf;
+
+#if defined(HAVE_WCHAR_H) && defined(HAVE_MBRTOWC) && defined(HAVE_WCWIDTH)
+	{
+		mbstate_t state;
+		wchar_t nextchar;
+		int mb_conv = 1;
+		size_t bytesconsumed;
+		char *eop;
+		(void)memset(&state, 0, sizeof(mbstate_t));
+
+		np = ms->o.pbuf;
+		op = ms->o.buf;
+		eop = op + len;
+
+		while (op < eop) {
+			bytesconsumed = mbrtowc(&nextchar, op,
+			    (size_t)(eop - op), &state);
+			if (bytesconsumed == (size_t)(-1) ||
+			    bytesconsumed == (size_t)(-2)) {
+				mb_conv = 0;
+				break;
+			}
+
+			if (iswprint(nextchar)) {
+				(void)memcpy(np, op, bytesconsumed);
+				op += bytesconsumed;
+				np += bytesconsumed;
+			} else {
+				while (bytesconsumed-- > 0)
+					OCTALIFY(np, op);
+			}
+		}
+		*np = '\0';
+
+		/* Parsing succeeded as a multi-byte sequence */
+		if (mb_conv != 0)
+			return ms->o.pbuf;
+	}
+#endif
+
+	for (np = ms->o.pbuf, op = ms->o.buf; *op;) {
+		if (isprint((unsigned char)*op)) {
+			*np++ = *op++;
+		} else {
+			OCTALIFY(np, op);
+		}
+	}
+	*np = '\0';
+	return ms->o.pbuf;
+}
+
+protected int
+file_check_mem(struct magic_set *ms, unsigned int level)
+{
+	size_t len;
+
+	if (level >= ms->c.len) {
+		len = (ms->c.len += 20) * sizeof(*ms->c.li);
+		ms->c.li = (ms->c.li == NULL) ? emalloc(len) : erealloc(ms->c.li, len);
+	}
+	ms->c.li[level].got_match = 0;
+#ifdef ENABLE_CONDITIONALS
+	ms->c.li[level].last_match = 0;
+	ms->c.li[level].last_cond = COND_NONE;
+#endif /* ENABLE_CONDITIONALS */
+	return 0;
+}
+
+protected size_t
+file_printedlen(const struct magic_set *ms)
+{
+	return ms->o.buf == NULL ? 0 : strlen(ms->o.buf);
+}
+
+
+protected int 
+file_replace(struct magic_set *ms, const char *pat, const char *rep)
+{
+	zval *patt;
+	int opts = 0;
+	pcre_cache_entry *pce;
+	char *res;
+	zval *repl;
+	int res_len, rep_cnt = 0;
+	TSRMLS_FETCH();
+
+	MAKE_STD_ZVAL(patt);
+	ZVAL_STRINGL(patt, pat, strlen(pat), 0);
+	opts |= PCRE_MULTILINE;
+	convert_libmagic_pattern(patt, opts);
+#if (PHP_MAJOR_VERSION < 6)
+	if ((pce = pcre_get_compiled_regex_cache(Z_STRVAL_P(patt), Z_STRLEN_P(patt) TSRMLS_CC)) == NULL) {
+#else
+	if ((pce = pcre_get_compiled_regex_cache(IS_STRING, Z_STRVAL_P(patt), Z_STRLEN_P(patt) TSRMLS_CC)) == NULL) {
+#endif
+		zval_dtor(patt);
+		FREE_ZVAL(patt);
+		return -1;
+	}
+
+	MAKE_STD_ZVAL(repl);
+	ZVAL_STRINGL(repl, rep, strlen(rep), 0);
+
+	res = php_pcre_replace_impl(pce, ms->o.buf, strlen(ms->o.buf), repl,
+			0, &res_len, -1, &rep_cnt TSRMLS_CC);
+
+	FREE_ZVAL(repl);
+	zval_dtor(patt);
+	FREE_ZVAL(patt);
+
+	if (NULL == res) {
+		return -1;
+	}
+
+	strncpy(ms->o.buf, res, res_len);
+	ms->o.buf[res_len] = '\0';
+
+	efree(res);
+
+	return rep_cnt;
+}
+