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| author | Cheng Renquan <crquan@gmail.com> | 2011-09-01 19:52:20 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2011-09-09 14:40:08 +0200 |
| commit | 5ea9f64ffc073bf2882f6aa83b0dad3609b1e67a (patch) | |
| tree | 3915aa9950e2b9e6404acb48a945c00662964954 /scripts/kconfig/nconf.gui.c | |
| parent | scripts/kconfig/nconf: fix memmove's length arg (diff) | |
| download | linux-5ea9f64ffc073bf2882f6aa83b0dad3609b1e67a.tar.xz linux-5ea9f64ffc073bf2882f6aa83b0dad3609b1e67a.zip | |
scripts/kconfig/nconf: dynamically alloc dialog_input_result
To support unlimited length string config items;
No check for realloc return value keeps code simple, and to be
consistent with other existing unchecked malloc in kconfig.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Diffstat (limited to 'scripts/kconfig/nconf.gui.c')
| -rw-r--r-- | scripts/kconfig/nconf.gui.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/scripts/kconfig/nconf.gui.c b/scripts/kconfig/nconf.gui.c index 3ce2a7c0bda6..d64bc1c24c20 100644 --- a/scripts/kconfig/nconf.gui.c +++ b/scripts/kconfig/nconf.gui.c @@ -356,7 +356,7 @@ int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...) int dialog_inputbox(WINDOW *main_window, const char *title, const char *prompt, - const char *init, char *result, int result_len) + const char *init, char **resultp, int *result_len) { int prompt_lines = 0; int prompt_width = 0; @@ -367,7 +367,12 @@ int dialog_inputbox(WINDOW *main_window, int i, x, y; int res = -1; int cursor_position = strlen(init); + char *result = *resultp; + if (strlen(init)+1 > *result_len) { + *result_len = strlen(init)+1; + *resultp = result = realloc(result, *result_len); + } /* find the widest line of msg: */ prompt_lines = get_line_no(prompt); @@ -384,7 +389,7 @@ int dialog_inputbox(WINDOW *main_window, y = (LINES-(prompt_lines+4))/2; x = (COLS-(prompt_width+4))/2; - strncpy(result, init, result_len); + strncpy(result, init, *result_len); /* create the windows */ win = newwin(prompt_lines+6, prompt_width+7, y, x); @@ -443,7 +448,7 @@ int dialog_inputbox(WINDOW *main_window, case KEY_UP: case KEY_RIGHT: if (cursor_position < len && - cursor_position < min(result_len, prompt_width)) + cursor_position < min(*result_len, prompt_width)) cursor_position++; break; case KEY_DOWN: @@ -452,8 +457,13 @@ int dialog_inputbox(WINDOW *main_window, cursor_position--; break; default: - if ((isgraph(res) || isspace(res)) && - len-2 < result_len) { + if ((isgraph(res) || isspace(res))) { + /* one for new char, one for '\0' */ + if (len+2 > *result_len) { + *result_len = len+2; + *resultp = result = realloc(result, + *result_len); + } /* insert the char at the proper position */ memmove(&result[cursor_position+1], &result[cursor_position], |