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msh: fix Ctrl-C handling with line editing

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This commit is contained in:
Denis Vlasenko 2008-02-02 18:35:55 +00:00
parent a2980c6249
commit 80667e30fb
3 changed files with 7 additions and 6 deletions
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5
include/libbb.h
View File

@ -963,10 +963,9 @@ enum {
};
line_input_t *new_line_input_t(int flags);
/* Returns:
* -1 on read errors or EOF, or on bare Ctrl-D.
* 0 on ctrl-C,
* -1 on read errors or EOF, or on bare Ctrl-D,
* 0 on ctrl-C (the line entered is still returned in 'command'),
* >0 length of input string, including terminating '\n'
* [is this true? stores "" in 'command' if return value is 0 or -1]
*/
int read_line_input(const char* prompt, char* command, int maxsize, line_input_t *state);
#else

4
libbb/lineedit.c
View File

@ -1315,8 +1315,8 @@ static void win_changed(int nsig)
#define CTRL(a) ((a) & ~0x40)
/* Returns:
* -1 on read errors or EOF, or on bare Ctrl-D.
* 0 on ctrl-C,
* -1 on read errors or EOF, or on bare Ctrl-D,
* 0 on ctrl-C (the line entered is still returned in 'command'),
* >0 length of input string, including terminating '\n'
*/
int read_line_input(const char *prompt, char *command, int maxsize, line_input_t *st)

4
shell/msh.c
View File

@ -4836,7 +4836,9 @@ static int filechar(struct ioarg *ap)
static int position = 0, size = 0;
while (size == 0 || position >= size) {
read_line_input(current_prompt, filechar_cmdbuf, BUFSIZ, line_input_state);
/* Repeat if Ctrl-C is pressed. TODO: exit on -1 (error/EOF)? */
while (read_line_input(current_prompt, filechar_cmdbuf, BUFSIZ, line_input_state) == 0)
continue;
size = strlen(filechar_cmdbuf);
position = 0;
}