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- Log ----------------------------------------------------------------- commit 801dcd70b0ec02566c704ff4f450cc90f6283f60 Author: Michael Tremer michael.tremer@ipfire.org Date: Mon Sep 29 21:29:57 2014 +0200

bash: Import patch for version 4.3.27

See #10633

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Summary of changes: lfs/bash | 2 +- src/patches/bash/bash43-027 | 221 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 222 insertions(+), 1 deletion(-) create mode 100644 src/patches/bash/bash43-027

Difference in files: diff --git a/lfs/bash b/lfs/bash index ae5a283..e6c8d5e 100644 --- a/lfs/bash +++ b/lfs/bash @@ -87,7 +87,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) sed -e "s/filename, RTLD_LAZY/filename, RTLD_NOW/" \ -i $(DIR_APP)/builtins/enable.def

- for i in $$(seq 1 26); do \ + for i in $$(seq 1 27); do \ cd $(DIR_APP) && patch -Np0 < $(DIR_SRC)/src/patches/bash/bash43-$$(printf "%03d" "$${i}") || exit 1; \ done

diff --git a/src/patches/bash/bash43-027 b/src/patches/bash/bash43-027 new file mode 100644 index 0000000..ef48bd8 --- /dev/null +++ b/src/patches/bash/bash43-027 @@ -0,0 +1,221 @@ + BASH PATCH REPORT + ================= + +Bash-Release: 4.3 +Patch-ID: bash43-027 + +Bug-Reported-by: Florian Weimer fweimer@redhat.com +Bug-Reference-ID: +Bug-Reference-URL: + +Bug-Description: + +This patch changes the encoding bash uses for exported functions to avoid +clashes with shell variables and to avoid depending only on an environment +variable's contents to determine whether or not to interpret it as a shell +function. + +Patch (apply with `patch -p0'): + +*** ../bash-4.3.26/variables.c 2014-09-25 23:02:18.000000000 -0400 +--- variables.c 2014-09-27 20:52:04.000000000 -0400 +*************** +*** 84,87 **** +--- 84,92 ---- + #define ifsname(s) ((s)[0] == 'I' && (s)[1] == 'F' && (s)[2] == 'S' && (s)[3] == '\0') + ++ #define BASHFUNC_PREFIX "BASH_FUNC_" ++ #define BASHFUNC_PREFLEN 10 /* == strlen(BASHFUNC_PREFIX */ ++ #define BASHFUNC_SUFFIX "%%" ++ #define BASHFUNC_SUFFLEN 2 /* == strlen(BASHFUNC_SUFFIX) */ ++ + extern char **environ; + +*************** +*** 280,284 **** + static void dispose_temporary_env __P((sh_free_func_t *)); + +! static inline char *mk_env_string __P((const char *, const char *)); + static char **make_env_array_from_var_list __P((SHELL_VAR **)); + static char **make_var_export_array __P((VAR_CONTEXT *)); +--- 285,289 ---- + static void dispose_temporary_env __P((sh_free_func_t *)); + +! static inline char *mk_env_string __P((const char *, const char *, int)); + static char **make_env_array_from_var_list __P((SHELL_VAR **)); + static char **make_var_export_array __P((VAR_CONTEXT *)); +*************** +*** 350,369 **** + /* If exported function, define it now. Don't import functions from + the environment in privileged mode. */ +! if (privmode == 0 && read_but_dont_execute == 0 && STREQN ("() {", string, 4)) + { + string_length = strlen (string); +! temp_string = (char *)xmalloc (3 + string_length + char_index); + +! strcpy (temp_string, name); +! temp_string[char_index] = ' '; +! strcpy (temp_string + char_index + 1, string); + + /* Don't import function names that are invalid identifiers from the + environment, though we still allow them to be defined as shell + variables. */ +! if (legal_identifier (name)) +! parse_and_execute (temp_string, name, SEVAL_NONINT|SEVAL_NOHIST|SEVAL_FUNCDEF|SEVAL_ONECMD); + +! if (temp_var = find_function (name)) + { + VSETATTR (temp_var, (att_exported|att_imported)); +--- 355,385 ---- + /* If exported function, define it now. Don't import functions from + the environment in privileged mode. */ +! if (privmode == 0 && read_but_dont_execute == 0 && +! STREQN (BASHFUNC_PREFIX, name, BASHFUNC_PREFLEN) && +! STREQ (BASHFUNC_SUFFIX, name + char_index - BASHFUNC_SUFFLEN) && +! STREQN ("() {", string, 4)) + { ++ size_t namelen; ++ char *tname; /* desired imported function name */ ++ ++ namelen = char_index - BASHFUNC_PREFLEN - BASHFUNC_SUFFLEN; ++ ++ tname = name + BASHFUNC_PREFLEN; /* start of func name */ ++ tname[namelen] = '\0'; /* now tname == func name */ ++ + string_length = strlen (string); +! temp_string = (char *)xmalloc (namelen + string_length + 2); + +! memcpy (temp_string, tname, namelen); +! temp_string[namelen] = ' '; +! memcpy (temp_string + namelen + 1, string, string_length + 1); + + /* Don't import function names that are invalid identifiers from the + environment, though we still allow them to be defined as shell + variables. */ +! if (absolute_program (tname) == 0 && (posixly_correct == 0 || legal_identifier (tname))) +! parse_and_execute (temp_string, tname, SEVAL_NONINT|SEVAL_NOHIST|SEVAL_FUNCDEF|SEVAL_ONECMD); + +! if (temp_var = find_function (tname)) + { + VSETATTR (temp_var, (att_exported|att_imported)); +*************** +*** 378,383 **** + } + last_command_exit_value = 1; +! report_error (_("error importing function definition for `%s'"), name); + } + } + #if defined (ARRAY_VARS) +--- 394,402 ---- + } + last_command_exit_value = 1; +! report_error (_("error importing function definition for `%s'"), tname); + } ++ ++ /* Restore original suffix */ ++ tname[namelen] = BASHFUNC_SUFFIX[0]; + } + #if defined (ARRAY_VARS) +*************** +*** 2955,2959 **** + + INVALIDATE_EXPORTSTR (var); +! var->exportstr = mk_env_string (name, value); + + array_needs_making = 1; +--- 2974,2978 ---- + + INVALIDATE_EXPORTSTR (var); +! var->exportstr = mk_env_string (name, value, 0); + + array_needs_making = 1; +*************** +*** 3853,3871 **** + + static inline char * +! mk_env_string (name, value) + const char *name, *value; + { +! int name_len, value_len; +! char *p; + + name_len = strlen (name); + value_len = STRLEN (value); +! p = (char *)xmalloc (2 + name_len + value_len); +! strcpy (p, name); +! p[name_len] = '='; + if (value && *value) +! strcpy (p + name_len + 1, value); + else +! p[name_len + 1] = '\0'; + return (p); + } +--- 3872,3911 ---- + + static inline char * +! mk_env_string (name, value, isfunc) + const char *name, *value; ++ int isfunc; + { +! size_t name_len, value_len; +! char *p, *q; + + name_len = strlen (name); + value_len = STRLEN (value); +! +! /* If we are exporting a shell function, construct the encoded function +! name. */ +! if (isfunc && value) +! { +! p = (char *)xmalloc (BASHFUNC_PREFLEN + name_len + BASHFUNC_SUFFLEN + value_len + 2); +! q = p; +! memcpy (q, BASHFUNC_PREFIX, BASHFUNC_PREFLEN); +! q += BASHFUNC_PREFLEN; +! memcpy (q, name, name_len); +! q += name_len; +! memcpy (q, BASHFUNC_SUFFIX, BASHFUNC_SUFFLEN); +! q += BASHFUNC_SUFFLEN; +! } +! else +! { +! p = (char *)xmalloc (2 + name_len + value_len); +! memcpy (p, name, name_len); +! q = p + name_len; +! } +! +! q[0] = '='; + if (value && *value) +! memcpy (q + 1, value, value_len + 1); + else +! q[1] = '\0'; +! + return (p); + } +*************** +*** 3953,3957 **** + using the cached exportstr... */ + list[list_index] = USE_EXPORTSTR ? savestring (value) +! : mk_env_string (var->name, value); + + if (USE_EXPORTSTR == 0) +--- 3993,3997 ---- + using the cached exportstr... */ + list[list_index] = USE_EXPORTSTR ? savestring (value) +! : mk_env_string (var->name, value, function_p (var)); + + if (USE_EXPORTSTR == 0) +*** ../bash-4.3/patchlevel.h 2012-12-29 10:47:57.000000000 -0500 +--- patchlevel.h 2014-03-20 20:01:28.000000000 -0400 +*************** +*** 26,30 **** + looks for to find the patch level (for the sccs version string). */ + +! #define PATCHLEVEL 26 + + #endif /* _PATCHLEVEL_H_ */ +--- 26,30 ---- + looks for to find the patch level (for the sccs version string). */ + +! #define PATCHLEVEL 27 + + #endif /* _PATCHLEVEL_H_ */

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