diff options
| -rw-r--r-- | shell/hush.c | 94 |
1 files changed, 49 insertions, 45 deletions
diff --git a/shell/hush.c b/shell/hush.c index 2bca9aa..a771e9c 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -931,7 +931,7 @@ static const struct built_in_command bltins2[] = { */ #if HUSH_DEBUG /* prevent disasters with G.debug_indent < 0 */ -# define indent() fprintf(stderr, "%*s", (G.debug_indent * 2) & 0xff, "") +# define indent() fdprintf(2, "%*s", (G.debug_indent * 2) & 0xff, "") # define debug_enter() (G.debug_indent++) # define debug_leave() (G.debug_indent--) #else @@ -941,56 +941,56 @@ static const struct built_in_command bltins2[] = { #endif #ifndef debug_printf -# define debug_printf(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_parse -# define debug_printf_parse(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_parse(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_exec -#define debug_printf_exec(...) (indent(), fprintf(stderr, __VA_ARGS__)) +#define debug_printf_exec(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_env -# define debug_printf_env(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_env(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_jobs -# define debug_printf_jobs(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_jobs(...) (indent(), fdprintf(2, __VA_ARGS__)) # define DEBUG_JOBS 1 #else # define DEBUG_JOBS 0 #endif #ifndef debug_printf_expand -# define debug_printf_expand(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_expand(...) (indent(), fdprintf(2, __VA_ARGS__)) # define DEBUG_EXPAND 1 #else # define DEBUG_EXPAND 0 #endif #ifndef debug_printf_varexp -# define debug_printf_varexp(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_varexp(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_glob -# define debug_printf_glob(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_glob(...) (indent(), fdprintf(2, __VA_ARGS__)) # define DEBUG_GLOB 1 #else # define DEBUG_GLOB 0 #endif #ifndef debug_printf_list -# define debug_printf_list(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_list(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_subst -# define debug_printf_subst(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_subst(...) (indent(), fdprintf(2, __VA_ARGS__)) #endif #ifndef debug_printf_clean -# define debug_printf_clean(...) (indent(), fprintf(stderr, __VA_ARGS__)) +# define debug_printf_clean(...) (indent(), fdprintf(2, __VA_ARGS__)) # define DEBUG_CLEAN 1 #else # define DEBUG_CLEAN 0 @@ -1000,9 +1000,9 @@ static const struct built_in_command bltins2[] = { static void debug_print_strings(const char *prefix, char **vv) { indent(); - fprintf(stderr, "%s:\n", prefix); + fdprintf(2, "%s:\n", prefix); while (*vv) - fprintf(stderr, " '%s'\n", *vv++); + fdprintf(2, " '%s'\n", *vv++); } #else # define debug_print_strings(prefix, vv) ((void)0) @@ -1434,6 +1434,22 @@ static void hush_exit(int exitcode) builtin_eval(argv); } +#if ENABLE_FEATURE_CLEAN_UP + { + struct variable *cur_var; + if (G.cwd != bb_msg_unknown) + free((char*)G.cwd); + cur_var = G.top_var; + while (cur_var) { + struct variable *tmp = cur_var; + if (!cur_var->max_len) + free(cur_var->varstr); + cur_var = cur_var->next; + free(tmp); + } + } +#endif + #if ENABLE_HUSH_JOB fflush_all(); sigexit(- (exitcode & 0xff)); @@ -2176,22 +2192,22 @@ static void debug_print_list(const char *prefix, o_string *o, int n) int i = 0; indent(); - fprintf(stderr, "%s: list:%p n:%d string_start:%d length:%d maxlen:%d glob:%d quoted:%d escape:%d\n", + fdprintf(2, "%s: list:%p n:%d string_start:%d length:%d maxlen:%d glob:%d quoted:%d escape:%d\n", prefix, list, n, string_start, o->length, o->maxlen, !!(o->o_expflags & EXP_FLAG_GLOB), o->has_quoted_part, !!(o->o_expflags & EXP_FLAG_ESC_GLOB_CHARS)); while (i < n) { indent(); - fprintf(stderr, " list[%d]=%d '%s' %p\n", i, (int)list[i], - o->data + (int)list[i] + string_start, - o->data + (int)list[i] + string_start); + fdprintf(2, " list[%d]=%d '%s' %p\n", i, (int)(uintptr_t)list[i], + o->data + (int)(uintptr_t)list[i] + string_start, + o->data + (int)(uintptr_t)list[i] + string_start); i++; } if (n) { - const char *p = o->data + (int)list[n - 1] + string_start; + const char *p = o->data + (int)(uintptr_t)list[n - 1] + string_start; indent(); - fprintf(stderr, " total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data)); + fdprintf(2, " total_sz:%ld\n", (long)((p + strlen(p) + 1) - o->data)); } } #else @@ -2690,18 +2706,18 @@ static void debug_print_tree(struct pipe *pi, int lvl) pin = 0; while (pi) { - fprintf(stderr, "%*spipe %d res_word=%s followup=%d %s\n", lvl*2, "", + fdprintf(2, "%*spipe %d res_word=%s followup=%d %s\n", lvl*2, "", pin, RES[pi->res_word], pi->followup, PIPE[pi->followup]); prn = 0; while (prn < pi->num_cmds) { struct command *command = &pi->cmds[prn]; char **argv = command->argv; - fprintf(stderr, "%*s cmd %d assignment_cnt:%d", + fdprintf(2, "%*s cmd %d assignment_cnt:%d", lvl*2, "", prn, command->assignment_cnt); if (command->group) { - fprintf(stderr, " group %s: (argv=%p)%s%s\n", + fdprintf(2, " group %s: (argv=%p)%s%s\n", CMDTYPE[command->cmd_type], argv # if !BB_MMU @@ -2715,10 +2731,10 @@ static void debug_print_tree(struct pipe *pi, int lvl) continue; } if (argv) while (*argv) { - fprintf(stderr, " '%s'", *argv); + fdprintf(2, " '%s'", *argv); argv++; } - fprintf(stderr, "\n"); + fdprintf(2, "\n"); prn++; } pi = pi->next; @@ -7463,7 +7479,7 @@ int hush_main(int argc, char **argv) unsigned builtin_argc; char **e; struct variable *cur_var; - struct variable shell_ver; + struct variable *shell_ver; INIT_G(); if (EXIT_SUCCESS) /* if EXIT_SUCCESS == 0, it is already done */ @@ -7472,17 +7488,17 @@ int hush_main(int argc, char **argv) G.argv0_for_re_execing = argv[0]; #endif /* Deal with HUSH_VERSION */ - memset(&shell_ver, 0, sizeof(shell_ver)); - shell_ver.flg_export = 1; - shell_ver.flg_read_only = 1; + shell_ver = xzalloc(sizeof(*shell_ver)); + shell_ver->flg_export = 1; + shell_ver->flg_read_only = 1; /* Code which handles ${var<op>...} needs writable values for all variables, * therefore we xstrdup: */ - shell_ver.varstr = xstrdup(hush_version_str), - G.top_var = &shell_ver; + shell_ver->varstr = xstrdup(hush_version_str); /* Create shell local variables from the values * currently living in the environment */ debug_printf_env("unsetenv '%s'\n", "HUSH_VERSION"); unsetenv("HUSH_VERSION"); /* in case it exists in initial env */ + G.top_var = shell_ver; cur_var = G.top_var; e = environ; if (e) while (*e) { @@ -7497,8 +7513,8 @@ int hush_main(int argc, char **argv) e++; } /* (Re)insert HUSH_VERSION into env (AFTER we scanned the env!) */ - debug_printf_env("putenv '%s'\n", shell_ver.varstr); - putenv(shell_ver.varstr); + debug_printf_env("putenv '%s'\n", shell_ver->varstr); + putenv(shell_ver->varstr); /* Export PWD */ set_pwd_var(/*exp:*/ 1); @@ -7858,18 +7874,6 @@ int hush_main(int argc, char **argv) parse_and_run_file(stdin); final_return: -#if ENABLE_FEATURE_CLEAN_UP - if (G.cwd != bb_msg_unknown) - free((char*)G.cwd); - cur_var = G.top_var->next; - while (cur_var) { - struct variable *tmp = cur_var; - if (!cur_var->max_len) - free(cur_var->varstr); - cur_var = cur_var->next; - free(tmp); - } -#endif hush_exit(G.last_exitcode); } |