diff options
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 64 |
1 files changed, 35 insertions, 29 deletions
diff --git a/shell/hush.c b/shell/hush.c index 971a16aff..34d905397 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -828,7 +828,7 @@ struct globals { * _AND_ if we decided to act interactively */ int interactive_fd; const char *PS1; - const char *PS2; + IF_FEATURE_EDITING_FANCY_PROMPT(const char *PS2;) # define G_interactive_fd (G.interactive_fd) #else # define G_interactive_fd 0 @@ -1394,7 +1394,7 @@ static void syntax_error_unexpected_ch(unsigned lineno UNUSED_PARAM, int ch) #endif -#if ENABLE_HUSH_INTERACTIVE +#if ENABLE_HUSH_INTERACTIVE && ENABLE_FEATURE_EDITING_FANCY_PROMPT static void cmdedit_update_prompt(void); #else # define cmdedit_update_prompt() ((void)0) @@ -2125,7 +2125,9 @@ static const char* FAST_FUNC get_local_var_value(const char *name) static void handle_changed_special_names(const char *name, unsigned name_len) { - if (name_len == 3 && name[0] == 'P' && name[1] == 'S') { + if (ENABLE_HUSH_INTERACTIVE && ENABLE_FEATURE_EDITING_FANCY_PROMPT + && name_len == 3 && name[0] == 'P' && name[1] == 'S' + ) { cmdedit_update_prompt(); return; } @@ -2305,9 +2307,6 @@ static int unset_local_var_len(const char *name, int name_len) struct variable *cur; struct variable **cur_pp; - if (!name) - return EXIT_SUCCESS; - cur_pp = &G.top_var; while ((cur = *cur_pp) != NULL) { if (strncmp(cur->varstr, name, name_len) == 0 @@ -2321,17 +2320,18 @@ static int unset_local_var_len(const char *name, int name_len) *cur_pp = cur->next; debug_printf_env("%s: unsetenv '%s'\n", __func__, cur->varstr); bb_unsetenv(cur->varstr); - - handle_changed_special_names(name, name_len); - if (!cur->max_len) free(cur->varstr); free(cur); - return EXIT_SUCCESS; + break; } cur_pp = &cur->next; } + + /* Handle "unset PS1" et al even if did not find the variable to unset */ + handle_changed_special_names(name, name_len); + return EXIT_SUCCESS; } @@ -2459,36 +2459,36 @@ static void reinit_unicode_for_hush(void) * \ * It exercises a lot of corner cases. */ +# if ENABLE_FEATURE_EDITING_FANCY_PROMPT static void cmdedit_update_prompt(void) { - if (ENABLE_FEATURE_EDITING_FANCY_PROMPT) { - G.PS1 = get_local_var_value("PS1"); - if (G.PS1 == NULL) - G.PS1 = "\\w \\$ "; - G.PS2 = get_local_var_value("PS2"); - } else { - G.PS1 = NULL; - } + G.PS1 = get_local_var_value("PS1"); + if (G.PS1 == NULL) + G.PS1 = ""; + G.PS2 = get_local_var_value("PS2"); if (G.PS2 == NULL) - G.PS2 = "> "; + G.PS2 = ""; } +# endif static const char *setup_prompt_string(int promptmode) { const char *prompt_str; + debug_printf("setup_prompt_string %d ", promptmode); - if (!ENABLE_FEATURE_EDITING_FANCY_PROMPT) { - /* Set up the prompt */ - if (promptmode == 0) { /* PS1 */ + + IF_FEATURE_EDITING_FANCY_PROMPT( prompt_str = G.PS2;) + IF_NOT_FEATURE_EDITING_FANCY_PROMPT(prompt_str = "> ";) + if (promptmode == 0) { /* PS1 */ + if (!ENABLE_FEATURE_EDITING_FANCY_PROMPT) { + /* No fancy prompts supported, (re)generate "CURDIR $ " by hand */ free((char*)G.PS1); /* bash uses $PWD value, even if it is set by user. * It uses current dir only if PWD is unset. * We always use current dir. */ G.PS1 = xasprintf("%s %c ", get_cwd(0), (geteuid() != 0) ? '$' : '#'); - prompt_str = G.PS1; - } else - prompt_str = G.PS2; - } else - prompt_str = (promptmode == 0) ? G.PS1 : G.PS2; + } + prompt_str = G.PS1; + } debug_printf("prompt_str '%s'\n", prompt_str); return prompt_str; } @@ -9207,6 +9207,14 @@ int hush_main(int argc, char **argv) /* Export PWD */ set_pwd_var(SETFLAG_EXPORT); +#if ENABLE_HUSH_INTERACTIVE && ENABLE_FEATURE_EDITING_FANCY_PROMPT + /* Set (but not export) PS1/2 unless already set */ + if (!get_local_var_value("PS1")) + set_local_var_from_halves("PS1", "\\w \\$ "); + if (!get_local_var_value("PS2")) + set_local_var_from_halves("PS2", "> "); +#endif + #if BASH_HOSTNAME_VAR /* Set (but not export) HOSTNAME unless already set */ if (!get_local_var_value("HOSTNAME")) { @@ -9245,8 +9253,6 @@ int hush_main(int argc, char **argv) * OPTERR=1 * OPTIND=1 * IFS=$' \t\n' - * PS1='\s-\v\$ ' - * PS2='> ' * PS4='+ ' */ #endif |