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libmagic.patch
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diff -u libmagic.orig/apprentice.c libmagic/apprentice.c
--- libmagic.orig/apprentice.c 2019-02-20 03:35:27.000000000 +0100
+++ libmagic/apprentice.c 2019-12-19 20:37:54.476535900 +0100
@@ -29,6 +29,8 @@
* apprentice - make one pass through /etc/magic, learning its secrets.
*/
+#include "php.h"
+
#include "file.h"
#ifndef lint
@@ -36,20 +38,33 @@
#endif /* lint */
#include "magic.h"
+#include "patchlevel.h"
#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
+
+#if defined(__hpux) && !defined(HAVE_STRTOULL)
+#if SIZEOF_LONG == 8
+# define strtoull strtoul
+#else
+# define strtoull __strtoull
+#endif
+#endif
+
+#ifdef PHP_WIN32
+#include "win32/unistd.h"
+#define strtoull _strtoui64
+#else
#include <unistd.h>
#endif
-#include <stddef.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
-#ifdef QUICK
-#include <sys/mman.h>
+
+#ifndef SSIZE_MAX
+#define MAXMAGIC_SIZE ((ssize_t)0x7fffffff)
+#else
+#define MAXMAGIC_SIZE SSIZE_MAX
#endif
-#include <dirent.h>
-#include <limits.h>
#define EATAB {while (isascii(CAST(unsigned char, *l)) && \
@@ -66,6 +81,10 @@
#endif
#endif
+#ifndef offsetof
+#define offsetof(STRUCTURE,FIELD) ((int)((char*)&((STRUCTURE*)0)->FIELD))
+#endif
+
#ifndef MAP_FAILED
#define MAP_FAILED (void *) -1
#endif
@@ -127,10 +146,7 @@
private uint32_t swap4(uint32_t);
private uint64_t swap8(uint64_t);
private char *mkdbname(struct magic_set *, const char *, int);
-private struct magic_map *apprentice_buf(struct magic_set *, struct magic *,
- size_t);
private struct magic_map *apprentice_map(struct magic_set *, const char *);
-private int check_buffer(struct magic_set *, struct magic_map *, const char *);
private void apprentice_unmap(struct magic_map *);
private int apprentice_compile(struct magic_set *, struct magic_map *,
const char *);
@@ -161,38 +177,7 @@
{ NULL, 0, NULL }
};
-#ifdef COMPILE_ONLY
-
-int main(int, char *[]);
-
-int
-main(int argc, char *argv[])
-{
- int ret;
- struct magic_set *ms;
- char *progname;
-
- if ((progname = strrchr(argv[0], '/')) != NULL)
- progname++;
- else
- progname = argv[0];
-
- if (argc != 2) {
- (void)fprintf(stderr, "Usage: %s file\n", progname);
- return 1;
- }
-
- if ((ms = magic_open(MAGIC_CHECK)) == NULL) {
- (void)fprintf(stderr, "%s: %s\n", progname, strerror(errno));
- return 1;
- }
- ret = magic_compile(ms, argv[1]) == -1 ? 1 : 0;
- if (ret == 1)
- (void)fprintf(stderr, "%s: %s\n", progname, magic_error(ms));
- magic_close(ms);
- return ret;
-}
-#endif /* COMPILE_ONLY */
+#include "../data_file.c"
struct type_tbl_s {
const char name[16];
@@ -409,7 +394,7 @@
struct mlist *ml;
mlp->map = NULL;
- if ((ml = CAST(struct mlist *, malloc(sizeof(*ml)))) == NULL)
+ if ((ml = CAST(struct mlist *, emalloc(sizeof(*ml)))) == NULL)
return -1;
ml->map = idx == 0 ? map : NULL;
@@ -430,10 +415,8 @@
apprentice_1(struct magic_set *ms, const char *fn, int action)
{
struct magic_map *map;
-#ifndef COMPILE_ONLY
struct mlist *ml;
size_t i;
-#endif
if (magicsize != FILE_MAGICSIZE) {
file_error(ms, 0, "magic element size %lu != %lu",
@@ -449,14 +432,15 @@
return apprentice_compile(ms, map, fn);
}
-#ifndef COMPILE_ONLY
map = apprentice_map(ms, fn);
if (map == RCAST(struct magic_map *, -1))
return -1;
if (map == NULL) {
- if (ms->flags & MAGIC_CHECK)
- file_magwarn(ms, "using regular magic file `%s'", fn);
- map = apprentice_load(ms, fn, action);
+ if (fn) {
+ if (ms->flags & MAGIC_CHECK)
+ file_magwarn(ms, "using regular magic file `%s'", fn);
+ map = apprentice_load(ms, fn, action);
+ }
if (map == NULL)
return -1;
}
@@ -478,9 +462,6 @@
}
}
return 0;
-#else
- return 0;
-#endif /* COMPILE_ONLY */
}
protected void
@@ -491,10 +472,16 @@
return;
for (i = 0; i < MAGIC_SETS; i++)
mlist_free(ms->mlist[i]);
- free(ms->o.pbuf);
- free(ms->o.buf);
- free(ms->c.li);
- free(ms);
+ if (ms->o.pbuf) {
+ efree(ms->o.pbuf);
+ }
+ if (ms->o.buf) {
+ efree(ms->o.buf);
+ }
+ if (ms->c.li) {
+ efree(ms->c.li);
+ }
+ efree(ms);
}
protected struct magic_set *
@@ -503,7 +490,7 @@
struct magic_set *ms;
size_t i, len;
- if ((ms = CAST(struct magic_set *, calloc(CAST(size_t, 1u),
+ if ((ms = CAST(struct magic_set *, ecalloc(CAST(size_t, 1u),
sizeof(struct magic_set)))) == NULL)
return NULL;
@@ -515,7 +502,7 @@
ms->o.buf = ms->o.pbuf = NULL;
len = (ms->c.len = 10) * sizeof(*ms->c.li);
- if ((ms->c.li = CAST(struct level_info *, malloc(len))) == NULL)
+ if ((ms->c.li = CAST(struct level_info *, emalloc(len))) == NULL)
goto free;
ms->event_flags = 0;
@@ -533,48 +520,35 @@
ms->bytes_max = FILE_BYTES_MAX;
return ms;
free:
- free(ms);
+ efree(ms);
return NULL;
}
private void
apprentice_unmap(struct magic_map *map)
{
- size_t i;
if (map == NULL)
return;
-
- switch (map->type) {
- case MAP_TYPE_USER:
- break;
- case MAP_TYPE_MALLOC:
- for (i = 0; i < MAGIC_SETS; i++) {
- void *b = map->magic[i];
- void *p = map->p;
- if (CAST(char *, b) >= CAST(char *, p) &&
- CAST(char *, b) <= CAST(char *, p) + map->len)
- continue;
- free(map->magic[i]);
+ if (map->p != php_magic_database) {
+ if (map->p == NULL) {
+ int j;
+ for (j = 0; j < MAGIC_SETS; j++) {
+ if (map->magic[j]) {
+ efree(map->magic[j]);
+ }
+ }
+ } else {
+ efree(map->p);
}
- free(map->p);
- break;
-#ifdef QUICK
- case MAP_TYPE_MMAP:
- if (map->p && map->p != MAP_FAILED)
- (void)munmap(map->p, map->len);
- break;
-#endif
- default:
- abort();
}
- free(map);
+ efree(map);
}
private struct mlist *
mlist_alloc(void)
{
struct mlist *mlist;
- if ((mlist = CAST(struct mlist *, calloc(1, sizeof(*mlist)))) == NULL) {
+ if ((mlist = CAST(struct mlist *, ecalloc(1, sizeof(*mlist)))) == NULL) {
return NULL;
}
mlist->next = mlist->prev = mlist;
@@ -586,7 +560,7 @@
{
if (ml->map)
apprentice_unmap(CAST(struct magic_map *, ml->map));
- free(ml);
+ efree(ml);
}
private void
@@ -604,54 +578,6 @@
mlist_free_one(mlist);
}
-#ifndef COMPILE_ONLY
-/* void **bufs: an array of compiled magic files */
-protected int
-buffer_apprentice(struct magic_set *ms, struct magic **bufs,
- size_t *sizes, size_t nbufs)
-{
- size_t i, j;
- struct mlist *ml;
- struct magic_map *map;
-
- if (nbufs == 0)
- return -1;
-
- (void)file_reset(ms, 0);
-
- init_file_tables();
-
- for (i = 0; i < MAGIC_SETS; i++) {
- mlist_free(ms->mlist[i]);
- if ((ms->mlist[i] = mlist_alloc()) == NULL) {
- file_oomem(ms, sizeof(*ms->mlist[i]));
- goto fail;
- }
- }
-
- for (i = 0; i < nbufs; i++) {
- map = apprentice_buf(ms, bufs[i], sizes[i]);
- if (map == NULL)
- goto fail;
-
- for (j = 0; j < MAGIC_SETS; j++) {
- if (add_mlist(ms->mlist[j], map, j) == -1) {
- file_oomem(ms, sizeof(*ml));
- goto fail;
- }
- }
- }
-
- return 0;
-fail:
- for (i = 0; i < MAGIC_SETS; i++) {
- mlist_free(ms->mlist[i]);
- ms->mlist[i] = NULL;
- }
- return -1;
-}
-#endif
-
/* const char *fn: list of magic files and directories */
protected int
file_apprentice(struct magic_set *ms, const char *fn, int action)
@@ -662,12 +588,28 @@
(void)file_reset(ms, 0);
+/* XXX disabling default magic loading so the compiled in data is used */
+#if 0
if ((fn = magic_getpath(fn, action)) == NULL)
return -1;
+#endif
init_file_tables();
- if ((mfn = strdup(fn)) == NULL) {
+ if (fn == NULL)
+ fn = getenv("MAGIC");
+ if (fn == NULL) {
+ for (i = 0; i < MAGIC_SETS; i++) {
+ mlist_free(ms->mlist[i]);
+ if ((ms->mlist[i] = mlist_alloc()) == NULL) {
+ file_oomem(ms, sizeof(*ms->mlist[i]));
+ return -1;
+ }
+ }
+ return apprentice_1(ms, fn, action);
+ }
+
+ if ((mfn = estrdup(fn)) == NULL) {
file_oomem(ms, strlen(fn));
return -1;
}
@@ -680,7 +622,7 @@
mlist_free(ms->mlist[i]);
ms->mlist[i] = NULL;
}
- free(mfn);
+ efree(mfn);
return -1;
}
}
@@ -697,7 +639,7 @@
fn = p;
}
- free(mfn);
+ efree(mfn);
if (errs == -1) {
for (i = 0; i < MAGIC_SETS; i++) {
@@ -1128,7 +1070,7 @@
mset[i].max += ALLOC_INCR;
if ((mp = CAST(struct magic_entry *,
- realloc(mset[i].me, sizeof(*mp) * mset[i].max))) ==
+ erealloc(mset[i].me, sizeof(*mp) * mset[i].max))) ==
NULL) {
file_oomem(ms, sizeof(*mp) * mset[i].max);
return -1;
@@ -1149,13 +1091,19 @@
load_1(struct magic_set *ms, int action, const char *fn, int *errs,
struct magic_entry_set *mset)
{
- size_t lineno = 0, llen = 0;
+ char buffer[BUFSIZ + 1];
char *line = NULL;
- ssize_t len;
+ size_t len;
+ size_t lineno = 0;
struct magic_entry me;
- FILE *f = fopen(ms->file = fn, "r");
- if (f == NULL) {
+ php_stream *stream;
+
+
+ ms->file = fn;
+ stream = php_stream_open_wrapper((char *)fn, "rb", REPORT_ERRORS, NULL);
+
+ if (stream == NULL) {
if (errno != ENOENT)
file_error(ms, errno, "cannot read magic file `%s'",
fn);
@@ -1165,8 +1113,7 @@
memset(&me, 0, sizeof(me));
/* read and parse this file */
- for (ms->line = 1; (len = getline(&line, &llen, f)) != -1;
- ms->line++) {
+ for (ms->line = 1; (line = php_stream_get_line(stream, buffer , BUFSIZ, &len)) != NULL; ms->line++) {
if (len == 0) /* null line, garbage, etc */
continue;
if (line[len - 1] == '\n') {
@@ -1224,8 +1171,8 @@
}
if (me.mp)
(void)addentry(ms, &me, mset);
- free(line);
- (void)fclose(f);
+ efree(line);
+ php_stream_close(stream);
}
/*
@@ -1304,7 +1251,7 @@
mentrycount += me[i].cont_count;
slen = sizeof(**ma) * mentrycount;
- if ((*ma = CAST(struct magic *, malloc(slen))) == NULL) {
+ if ((*ma = CAST(struct magic *, emalloc(slen))) == NULL) {
file_oomem(ms, slen);
return -1;
}
@@ -1326,8 +1273,8 @@
if (me == NULL)
return;
for (i = 0; i < nme; i++)
- free(me[i].mp);
- free(me);
+ efree(me[i].mp);
+ efree(me);
}
private struct magic_map *
@@ -1336,18 +1283,19 @@
int errs = 0;
uint32_t i, j;
size_t files = 0, maxfiles = 0;
- char **filearr = NULL, *mfn;
- struct stat st;
+ char **filearr = NULL;
+ zend_stat_t st;
struct magic_map *map;
struct magic_entry_set mset[MAGIC_SETS];
- DIR *dir;
- struct dirent *d;
+ php_stream *dir;
+ php_stream_dirent d;
+
memset(mset, 0, sizeof(mset));
ms->flags |= MAGIC_CHECK; /* Enable checks for parsed files */
- if ((map = CAST(struct magic_map *, calloc(1, sizeof(*map)))) == NULL)
+ if ((map = CAST(struct magic_map *, ecalloc(1, sizeof(*map)))) == NULL)
{
file_oomem(ms, sizeof(*map));
return NULL;
@@ -1359,24 +1307,26 @@
(void)fprintf(stderr, "%s\n", usg_hdr);
/* load directory or file */
- if (stat(fn, &st) == 0 && S_ISDIR(st.st_mode)) {
- dir = opendir(fn);
+ /* FIXME: Read file names and sort them to prevent
+ non-determinism. See Debian bug #488562. */
+ if (php_sys_stat(fn, &st) == 0 && S_ISDIR(st.st_mode)) {
+ int mflen;
+ char mfn[MAXPATHLEN];
+
+ dir = php_stream_opendir((char *)fn, REPORT_ERRORS, NULL);
if (!dir) {
errs++;
goto out;
}
- while ((d = readdir(dir)) != NULL) {
- if (d->d_name[0] == '.')
- continue;
- if (asprintf(&mfn, "%s/%s", fn, d->d_name) < 0) {
+ while (php_stream_readdir(dir, &d)) {
+ if ((mflen = snprintf(mfn, sizeof(mfn), "%s/%s", fn, d.d_name)) < 0) {
file_oomem(ms,
- strlen(fn) + strlen(d->d_name) + 2);
+ strlen(fn) + strlen(d.d_name) + 2);
errs++;
- closedir(dir);
+ php_stream_closedir(dir);
goto out;
}
- if (stat(mfn, &st) == -1 || !S_ISREG(st.st_mode)) {
- free(mfn);
+ if (zend_stat(mfn, &st) == -1 || !S_ISREG(st.st_mode)) {
continue;
}
if (files >= maxfiles) {
@@ -1384,24 +1334,23 @@
maxfiles = (maxfiles + 1) * 2;
mlen = maxfiles * sizeof(*filearr);
if ((filearr = CAST(char **,
- realloc(filearr, mlen))) == NULL) {
+ erealloc(filearr, mlen))) == NULL) {
file_oomem(ms, mlen);
- free(mfn);
- closedir(dir);
+ php_stream_closedir(dir);
errs++;
goto out;
}
}
- filearr[files++] = mfn;
+ filearr[files++] = estrndup(mfn, (mflen > sizeof(mfn) - 1)? sizeof(mfn) - 1: mflen);
}
- closedir(dir);
+ php_stream_closedir(dir);
if (filearr) {
qsort(filearr, files, sizeof(*filearr), cmpstrp);
for (i = 0; i < files; i++) {
load_1(ms, action, filearr[i], &errs, mset);
- free(filearr[i]);
+ efree(filearr[i]);
}
- free(filearr);
+ efree(filearr);
}
} else
load_1(ms, action, fn, &errs, mset);
@@ -1869,7 +1818,7 @@
if (me->cont_count == me->max_count) {
struct magic *nm;
size_t cnt = me->max_count + ALLOC_CHUNK;
- if ((nm = CAST(struct magic *, realloc(me->mp,
+ if ((nm = CAST(struct magic *, erealloc(me->mp,
sizeof(*nm) * cnt))) == NULL) {
file_oomem(ms, sizeof(*nm) * cnt);
return -1;
@@ -1884,7 +1833,7 @@
static const size_t len = sizeof(*m) * ALLOC_CHUNK;
if (me->mp != NULL)
return 1;
- if ((m = CAST(struct magic *, malloc(len))) == NULL) {
+ if ((m = CAST(struct magic *, emalloc(len))) == NULL) {
file_oomem(ms, len);
return -1;
}
@@ -1926,17 +1875,6 @@
file_magwarn(ms, "offset `%s' invalid", l);
return -1;
}
-#if 0
- if (m->offset < 0 && cont_level != 0 &&
- (m->flag & (OFFADD | INDIROFFADD)) == 0) {
- if (ms->flags & MAGIC_CHECK) {
- file_magwarn(ms,
- "negative direct offset `%s' at level %u",
- l, cont_level);
- }
- return -1;
- }
-#endif
l = t;
if (m->flag & INDIR) {
@@ -2106,7 +2044,7 @@
m->mask_op = 0;
if (*l == '~') {
- if (!IS_STRING(m->type))
+ if (!IS_LIBMAGIC_STRING(m->type))
m->mask_op |= FILE_OPINVERSE;
else if (ms->flags & MAGIC_CHECK)
file_magwarn(ms, "'~' invalid for string types");
@@ -2115,7 +2053,7 @@
m->str_range = 0;
m->str_flags = m->type == FILE_PSTRING ? PSTRING_1_LE : 0;
if ((op = get_op(*l)) != -1) {
- if (IS_STRING(m->type)) {
+ if (IS_LIBMAGIC_STRING(m->type)) {
int r;
if (op != FILE_OPDIVIDE) {
@@ -2220,11 +2158,6 @@
if (check_format(ms, m) == -1)
return -1;
}
-#ifndef COMPILE_ONLY
- if (action == FILE_CHECK) {
- file_mdump(m);
- }
-#endif
m->mimetype[0] = '\0'; /* initialise MIME type to none */
return 0;
}
@@ -2296,7 +2229,7 @@
private int
parse_extra(struct magic_set *ms, struct magic_entry *me, const char *line,
- off_t off, size_t len, const char *name, const char *extra, int nt)
+ zend_off_t off, size_t len, const char *name, const char *extra, int nt)
{
size_t i;
const char *l = line;
@@ -2378,7 +2311,7 @@
struct magic *m = &me->mp[0];
return parse_extra(ms, me, line,
- CAST(off_t, offsetof(struct magic, mimetype)),
+ CAST(zend_off_t, offsetof(struct magic, mimetype)),
sizeof(m->mimetype), "MIME", "+-/.$?:{}", 1);
}
@@ -2657,14 +2590,19 @@
return -1;
}
if (m->type == FILE_REGEX) {
- file_regex_t rx;
- int rc = file_regcomp(&rx, m->value.s, REG_EXTENDED);
- if (rc) {
- if (ms->flags & MAGIC_CHECK)
- file_regerror(&rx, rc, ms);
+ zval pattern;
+ int options = 0;
+ pcre_cache_entry *pce;
+
+ convert_libmagic_pattern(&pattern, m->value.s, strlen(m->value.s), options);
+
+ if ((pce = pcre_get_compiled_regex_cache(Z_STR(pattern))) == NULL) {
+ zval_dtor(&pattern);
+ return -1;
}
- file_regfree(&rx);
- return rc ? -1 : 0;
+ zval_dtor(&pattern);
+
+ return 0;
}
return 0;
default:
@@ -3010,6 +2948,7 @@
*p = l;
}
+#if 0
/*
* handle a buffer containing a compiled file.
*/
@@ -3031,6 +2970,7 @@
}
return map;
}
+#endif
/*
* handle a compiled file.
@@ -3039,81 +2979,147 @@
private struct magic_map *
apprentice_map(struct magic_set *ms, const char *fn)
{
- int fd;
- struct stat st;
+ uint32_t *ptr;
+ uint32_t version, entries = 0, nentries;
+ int needsbyteswap;
char *dbname = NULL;
struct magic_map *map;
- struct magic_map *rv = NULL;
+ size_t i;
+ php_stream *stream = NULL;
+ php_stream_statbuf st;
- fd = -1;
- if ((map = CAST(struct magic_map *, calloc(1, sizeof(*map)))) == NULL) {
+
+
+ if ((map = CAST(struct magic_map *, ecalloc(1, sizeof(*map)))) == NULL) {
file_oomem(ms, sizeof(*map));
- goto error;
+ return NULL;
+ }
+
+ if (fn == NULL) {
+ map->p = (void *)&php_magic_database;
+ goto internal_loaded;
}
- map->type = MAP_TYPE_USER; /* unspecified */
+
+#ifdef PHP_WIN32
+ /* Don't bother on windows with php_stream_open_wrapper,
+ return to give apprentice_load() a chance. */
+ if (php_stream_stat_path_ex((char *)fn, 0, &st, NULL) == SUCCESS) {
+ if (st.sb.st_mode & S_IFDIR) {
+ goto error;
+ }
+ }
+#endif
dbname = mkdbname(ms, fn, 0);
if (dbname == NULL)
goto error;
- if ((fd = open(dbname, O_RDONLY|O_BINARY)) == -1)
+ stream = php_stream_open_wrapper((char *)fn, "rb", REPORT_ERRORS, NULL);
+
+ if (!stream) {
goto error;
+ }
- if (fstat(fd, &st) == -1) {
+#ifndef PHP_WIN32
+ if (php_stream_stat(stream, &st) < 0) {
file_error(ms, errno, "cannot stat `%s'", dbname);
goto error;
}
- if (st.st_size < 8 || st.st_size > maxoff_t()) {
+#endif
+ if (st.sb.st_size < 8 || st.sb.st_size > maxoff_t()) {
file_error(ms, 0, "file `%s' is too %s", dbname,
- st.st_size < 8 ? "small" : "large");
+ st.sb.st_size < 8 ? "small" : "large");
goto error;
}
- map->len = CAST(size_t, st.st_size);
-#ifdef QUICK
- map->type = MAP_TYPE_MMAP;
- if ((map->p = mmap(0, CAST(size_t, st.st_size), PROT_READ|PROT_WRITE,
- MAP_PRIVATE|MAP_FILE, fd, CAST(off_t, 0))) == MAP_FAILED) {
- file_error(ms, errno, "cannot map `%s'", dbname);
- goto error;
- }
-#else
map->type = MAP_TYPE_MALLOC;
- if ((map->p = CAST(void *, malloc(map->len))) == NULL) {
- file_oomem(ms, map->len);
- goto error;
- }
- if (read(fd, map->p, map->len) != (ssize_t)map->len) {
+ map->len = CAST(size_t, st.sb.st_size);
+ map->p = CAST(void *, emalloc(map->len));
+
+ if (php_stream_read(stream, map->p, (size_t)st.sb.st_size) != (size_t)st.sb.st_size) {
file_badread(ms);
goto error;
}
-#define RET 1
-#endif
- (void)close(fd);
- fd = -1;
- if (check_buffer(ms, map, dbname) != 0) {
- rv = RCAST(struct magic_map *, -1);
+ php_stream_close(stream);
+ stream = NULL;
+
+internal_loaded:
+ ptr = (uint32_t *)(void *)map->p;
+ if (*ptr != MAGICNO) {
+ if (swap4(*ptr) != MAGICNO) {
+ file_error(ms, 0, "bad magic in `%s'", dbname);
+ goto error;
+ }
+ needsbyteswap = 1;
+ } else
+ needsbyteswap = 0;
+ if (needsbyteswap)
+ version = swap4(ptr[1]);
+ else
+ version = ptr[1];
+ if (version != VERSIONNO) {
+ file_error(ms, 0, "File %d.%d supports only version %d magic "
+ "files. `%s' is version %d", FILE_VERSION_MAJOR, patchlevel,
+ VERSIONNO, dbname, version);
goto error;
}
-#ifdef QUICK
- if (mprotect(map->p, CAST(size_t, st.st_size), PROT_READ) == -1) {
- file_error(ms, errno, "cannot mprotect `%s'", dbname);
+
+ /* php_magic_database is a const, performing writes will segfault. This is for big-endian
+ machines only, PPC and Sparc specifically. Consider static variable or MINIT in
+ future. */
+ if (needsbyteswap && fn == NULL) {
+ map->p = emalloc(sizeof(php_magic_database));
+ map->p = memcpy(map->p, php_magic_database, sizeof(php_magic_database));
+ }
+
+ if (NULL != fn) {
+ nentries = (uint32_t)(st.sb.st_size / sizeof(struct magic));
+ entries = (uint32_t)(st.sb.st_size / sizeof(struct magic));
+ if ((zend_off_t)(entries * sizeof(struct magic)) != st.sb.st_size) {
+ file_error(ms, 0, "Size of `%s' %llu is not a multiple of %zu",
+ dbname, (unsigned long long)st.sb.st_size,
+ sizeof(struct magic));
+ goto error;
+ }
+ }
+ map->magic[0] = CAST(struct magic *, map->p) + 1;
+ nentries = 0;
+ for (i = 0; i < MAGIC_SETS; i++) {
+ if (needsbyteswap)
+ map->nmagic[i] = swap4(ptr[i + 2]);
+ else
+ map->nmagic[i] = ptr[i + 2];
+ if (i != MAGIC_SETS - 1)
+ map->magic[i + 1] = map->magic[i] + map->nmagic[i];
+ nentries += map->nmagic[i];
+ }
+ if (NULL != fn && entries != nentries + 1) {
+ file_error(ms, 0, "Inconsistent entries in `%s' %u != %u",
+ dbname, entries, nentries + 1);
goto error;
}
-#endif
+ if (needsbyteswap)
+ for (i = 0; i < MAGIC_SETS; i++)
+ byteswap(map->magic[i], map->nmagic[i]);
- free(dbname);
+ if (dbname) {
+ efree(dbname);
+ }
return map;
error:
- if (fd != -1)
- (void)close(fd);
+ if (stream) {
+ php_stream_close(stream);
+ }
apprentice_unmap(map);
- free(dbname);
- return rv;
+ if (dbname) {
+ efree(dbname);
+ }
+ return NULL;
}
+#if 0
private int
check_buffer(struct magic_set *ms, struct magic_map *map, const char *dbname)
{
@@ -3137,7 +3143,7 @@
version = ptr[1];
if (version != VERSIONNO) {
file_error(ms, 0, "File %s supports only version %d magic "
- "files. `%s' is version %d", VERSION,
+ "files. `%s' is version %d", FILE_VERSION_MAJOR,
VERSIONNO, dbname, version);
return -1;
}
@@ -3169,6 +3175,7 @@
byteswap(map->magic[i], map->nmagic[i]);
return 0;
}
+#endif
/*
* handle an mmaped file.
@@ -3178,7 +3185,6 @@
{
static const size_t nm = sizeof(*map->nmagic) * MAGIC_SETS;
static const size_t m = sizeof(**map->magic);
- int fd = -1;
size_t len;
char *dbname;
int rv = -1;
@@ -3187,14 +3193,17 @@
struct magic m;
uint32_t h[2 + MAGIC_SETS];
} hdr;
+ php_stream *stream;
dbname = mkdbname(ms, fn, 1);
if (dbname == NULL)
goto out;
- if ((fd = open(dbname, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0644)) == -1)
- {
+ /* wb+ == O_WRONLY|O_CREAT|O_TRUNC|O_BINARY */
+ stream = php_stream_open_wrapper((char *)fn, "wb+", REPORT_ERRORS, NULL);
+
+ if (!stream) {
file_error(ms, errno, "cannot open `%s'", dbname);
goto out;
}
@@ -3203,26 +3212,25 @@
hdr.h[1] = VERSIONNO;
memcpy(hdr.h + 2, map->nmagic, nm);
- if (write(fd, &hdr, sizeof(hdr)) != CAST(ssize_t, sizeof(hdr))) {
+ if (php_stream_write(stream,(const char *)&hdr, sizeof(hdr)) != (ssize_t)sizeof(hdr)) {
file_error(ms, errno, "error writing `%s'", dbname);
- goto out2;
+ goto out;
}
for (i = 0; i < MAGIC_SETS; i++) {
len = m * map->nmagic[i];
- if (write(fd, map->magic[i], len) != CAST(ssize_t, len)) {
+ if (php_stream_write(stream, (const char *)map->magic[i], len) != (ssize_t)len) {
file_error(ms, errno, "error writing `%s'", dbname);
- goto out2;
+ goto out;
}
}
+ if (stream) {
+ php_stream_close(stream);
+ }
rv = 0;
-out2:
- if (fd != -1)
- (void)close(fd);
out:
- apprentice_unmap(map);
- free(dbname);
+ efree(dbname);
return rv;
}
@@ -3256,17 +3264,18 @@
q++;
/* Compatibility with old code that looked in .mime */
if (ms->flags & MAGIC_MIME) {
- if (asprintf(&buf, "%.*s.mime%s", CAST(int, q - fn), fn, ext)
- < 0)
- return NULL;
- if (access(buf, R_OK) != -1) {
+ spprintf(&buf, MAXPATHLEN, "%.*s.mime%s", CAST(int, q - fn), fn, ext);
+#ifdef PHP_WIN32
+ if (VCWD_ACCESS(buf, R_OK) == 0) {
+#else
+ if (VCWD_ACCESS(buf, R_OK) != -1) {
+#endif
ms->flags &= MAGIC_MIME_TYPE;
return buf;
}
- free(buf);
+ efree(buf);
}
- if (asprintf(&buf, "%.*s%s", CAST(int, q - fn), fn, ext) < 0)
- return NULL;
+ spprintf(&buf, MAXPATHLEN, "%.*s%s", CAST(int, q - fn), fn, ext);
/* Compatibility with old code that looked in .mime */
if (strstr(fn, ".mime") != NULL)
@@ -3356,7 +3365,7 @@
m->offset = swap4(CAST(uint32_t, m->offset));
m->in_offset = swap4(CAST(uint32_t, m->in_offset));
m->lineno = swap4(CAST(uint32_t, m->lineno));
- if (IS_STRING(m->type)) {
+ if (IS_LIBMAGIC_STRING(m->type)) {
m->str_range = swap4(m->str_range);
m->str_flags = swap4(m->str_flags);
}
diff -u libmagic.orig/ascmagic.c libmagic/ascmagic.c
--- libmagic.orig/ascmagic.c 2019-05-07 04:27:11.000000000 +0200
+++ libmagic/ascmagic.c 2019-12-19 20:37:54.628894400 +0100
@@ -96,7 +96,7 @@
rv = file_ascmagic_with_encoding(ms, &bb,
ubuf, ulen, code, type, text);
- free(ubuf);
+ efree(ubuf);
return rv;
}
@@ -144,7 +144,7 @@
/* malloc size is a conservative overestimate; could be
improved, or at least realloced after conversion. */
mlen = ulen * 6;
- if ((utf8_buf = CAST(unsigned char *, malloc(mlen))) == NULL) {
+ if ((utf8_buf = CAST(unsigned char *, emalloc(mlen))) == NULL) {
file_oomem(ms, mlen);
goto done;
}
@@ -327,7 +327,8 @@
}
rv = 1;
done:
- free(utf8_buf);