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190 lines
7.0 KiB
190 lines
7.0 KiB
6 years ago
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commit 2bd86632b7cb97dc9002a23795e140fc880e1987
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Author: Dmitry V. Levin <ldv@altlinux.org>
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Date: Wed Dec 20 11:27:51 2017 +0000
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elf: remove redundant is_path argument
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is_path argument is no longer used and could be safely removed.
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* elf/dl-dst.h (DL_DST_COUNT): Remove is_path argument, all callers
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updated.
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* elf/dl-load.c (is_dst, _dl_dst_count, _dl_dst_substitute,
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expand_dynamic_string_token): Likewise.
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* sysdeps/generic/ldsodefs.h (_dl_dst_count, _dl_dst_substitute): Remove
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is_path argument.
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Index: glibc-2.17-c758a686/elf/dl-deps.c
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===================================================================
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--- glibc-2.17-c758a686.orig/elf/dl-deps.c
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+++ glibc-2.17-c758a686/elf/dl-deps.c
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@@ -101,7 +101,7 @@ struct list
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({ \
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const char *__str = (str); \
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const char *__result = __str; \
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- size_t __dst_cnt = DL_DST_COUNT (__str, 0); \
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+ size_t __dst_cnt = DL_DST_COUNT (__str); \
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\
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if (__dst_cnt != 0) \
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{ \
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@@ -115,7 +115,7 @@ DST not allowed in SUID/SGID programs"))
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__newp = (char *) alloca (DL_DST_REQUIRED (l, __str, strlen (__str), \
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__dst_cnt)); \
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\
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- __result = _dl_dst_substitute (l, __str, __newp, 0); \
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+ __result = _dl_dst_substitute (l, __str, __newp); \
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\
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if (*__result == '\0') \
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{ \
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Index: glibc-2.17-c758a686/elf/dl-dst.h
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===================================================================
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--- glibc-2.17-c758a686.orig/elf/dl-dst.h
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+++ glibc-2.17-c758a686/elf/dl-dst.h
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@@ -20,13 +20,13 @@
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/* Determine the number of DST elements in the name. Only if IS_PATH is
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nonzero paths are recognized (i.e., multiple, ':' separated filenames). */
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-#define DL_DST_COUNT(name, is_path) \
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+#define DL_DST_COUNT(name) \
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({ \
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size_t __cnt = 0; \
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const char *__sf = strchr (name, '$'); \
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\
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if (__builtin_expect (__sf != NULL, 0)) \
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- __cnt = _dl_dst_count (__sf, is_path); \
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+ __cnt = _dl_dst_count (__sf); \
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\
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__cnt; })
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Index: glibc-2.17-c758a686/elf/dl-load.c
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===================================================================
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--- glibc-2.17-c758a686.orig/elf/dl-load.c
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+++ glibc-2.17-c758a686/elf/dl-load.c
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@@ -232,8 +232,7 @@ is_trusted_path_normalize (const char *p
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static size_t
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-is_dst (const char *start, const char *name, const char *str,
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- int is_path, int secure)
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+is_dst (const char *start, const char *name, const char *str, int secure)
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{
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size_t len;
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bool is_curly = false;
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@@ -271,7 +270,7 @@ is_dst (const char *start, const char *n
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size_t
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-_dl_dst_count (const char *name, int is_path)
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+_dl_dst_count (const char *name)
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{
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const char *const start = name;
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size_t cnt = 0;
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@@ -283,10 +282,9 @@ _dl_dst_count (const char *name, int is_
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/* $ORIGIN is not expanded for SUID/GUID programs (except if it
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is $ORIGIN alone) and it must always appear first in path. */
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++name;
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- if ((len = is_dst (start, name, "ORIGIN", is_path,
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- INTUSE(__libc_enable_secure))) != 0
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- || (len = is_dst (start, name, "PLATFORM", is_path, 0)) != 0
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- || (len = is_dst (start, name, "LIB", is_path, 0)) != 0)
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+ if ((len = is_dst (start, name, "ORIGIN", INTUSE(__libc_enable_secure))) != 0
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+ || (len = is_dst (start, name, "PLATFORM", 0)) != 0
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+ || (len = is_dst (start, name, "LIB", 0)) != 0)
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++cnt;
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name = strchr (name + len, '$');
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@@ -298,8 +296,7 @@ _dl_dst_count (const char *name, int is_
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char *
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-_dl_dst_substitute (struct link_map *l, const char *name, char *result,
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- int is_path)
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+_dl_dst_substitute (struct link_map *l, const char *name, char *result)
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{
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const char *const start = name;
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@@ -319,8 +316,7 @@ _dl_dst_substitute (struct link_map *l,
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size_t len;
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++name;
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- if ((len = is_dst (start, name, "ORIGIN", is_path,
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- INTUSE(__libc_enable_secure))) != 0)
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+ if ((len = is_dst (start, name, "ORIGIN", INTUSE(__libc_enable_secure))) != 0)
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{
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#ifndef SHARED
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if (l == NULL)
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@@ -332,9 +328,9 @@ _dl_dst_substitute (struct link_map *l,
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check_for_trusted = (INTUSE(__libc_enable_secure)
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&& l->l_type == lt_executable);
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}
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- else if ((len = is_dst (start, name, "PLATFORM", is_path, 0)) != 0)
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+ else if ((len = is_dst (start, name, "PLATFORM", 0)) != 0)
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repl = GLRO(dl_platform);
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- else if ((len = is_dst (start, name, "LIB", is_path, 0)) != 0)
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+ else if ((len = is_dst (start, name, "LIB", 0)) != 0)
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repl = DL_DST_LIB;
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if (repl != NULL && repl != (const char *) -1)
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@@ -378,7 +374,7 @@ _dl_dst_substitute (struct link_map *l,
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belonging to the map is loaded. In this case the path element
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containing $ORIGIN is left out. */
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static char *
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-expand_dynamic_string_token (struct link_map *l, const char *s, int is_path)
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+expand_dynamic_string_token (struct link_map *l, const char *s)
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{
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/* We make two runs over the string. First we determine how large the
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resulting string is and then we copy it over. Since this is no
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@@ -389,7 +385,7 @@ expand_dynamic_string_token (struct link
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char *result;
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/* Determine the number of DST elements. */
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- cnt = DL_DST_COUNT (s, is_path);
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+ cnt = DL_DST_COUNT (s);
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/* If we do not have to replace anything simply copy the string. */
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if (__builtin_expect (cnt, 0) == 0)
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@@ -403,7 +399,7 @@ expand_dynamic_string_token (struct link
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if (result == NULL)
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return NULL;
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- return _dl_dst_substitute (l, s, result, is_path);
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+ return _dl_dst_substitute (l, s, result);
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}
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@@ -458,7 +454,7 @@ fillin_rpath (char *rpath, struct r_sear
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{
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struct r_search_path_elem *dirp;
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- to_free = cp = expand_dynamic_string_token (l, cp, 1);
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+ to_free = cp = expand_dynamic_string_token (l, cp);
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size_t len = strlen (cp);
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@@ -2263,7 +2259,7 @@ _dl_map_object (struct link_map *loader,
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{
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/* The path may contain dynamic string tokens. */
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realname = (loader
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- ? expand_dynamic_string_token (loader, name, 0)
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+ ? expand_dynamic_string_token (loader, name)
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: local_strdup (name));
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if (realname == NULL)
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fd = -1;
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Index: glibc-2.17-c758a686/sysdeps/generic/ldsodefs.h
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===================================================================
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--- glibc-2.17-c758a686.orig/sysdeps/generic/ldsodefs.h
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+++ glibc-2.17-c758a686/sysdeps/generic/ldsodefs.h
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@@ -983,11 +983,11 @@ extern void _dl_nothread_init_static_tls
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extern const char *_dl_get_origin (void) attribute_hidden;
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/* Count DSTs. */
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-extern size_t _dl_dst_count (const char *name, int is_path) attribute_hidden;
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+extern size_t _dl_dst_count (const char *name) attribute_hidden;
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/* Substitute DST values. */
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extern char *_dl_dst_substitute (struct link_map *l, const char *name,
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- char *result, int is_path) attribute_hidden;
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+ char *result) attribute_hidden;
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/* Check validity of the caller. */
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extern int _dl_check_caller (const void *caller, enum allowmask mask)
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