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Add the function 'confirm_yesno' for interactive

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User's confirmation is asked in different commands. This commit adds a
function for such confirmation.

Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
This commit is contained in:
Pierre Aubert 2014-04-24 10:30:07 +02:00 committed by Pantelis Antoniou
parent 91fdabc67a
commit a5dffa4b67
5 changed files with 37 additions and 36 deletions
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11
common/cmd_fuse.c
View File

@ -33,15 +33,8 @@ static int confirm_prog(void)
"what you are doing!\n"
"\nReally perform this fuse programming? <y/N>\n");
if (getc() == 'y') {
int c;
putc('y');
c = getc();
putc('\n');
if (c == '\r')
return 1;
}
if (confirm_yesno())
return 1;
puts("Fuse programming aborted\n");
return 0;

16
common/cmd_nand.c
View File

@ -605,22 +605,16 @@ static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
opts.spread = spread;
if (scrub) {
if (!scrub_yes)
puts(scrub_warn);
if (scrub_yes)
if (scrub_yes) {
opts.scrub = 1;
else if (getc() == 'y') {
puts("y");
if (getc() == '\r')
} else {
puts(scrub_warn);
if (confirm_yesno()) {
opts.scrub = 1;
else {
} else {
puts("scrub aborted\n");
return 1;
}
} else {
puts("scrub aborted\n");
return 1;
}
}
ret = nand_erase_opts(nand, &opts);

18
common/cmd_otp.c
View File

@ -158,21 +158,9 @@ int do_otp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
lowup(half + count - 1), page + (half + count - 1) / 2,
half + count
);
i = 0;
while (1) {
if (tstc()) {
const char exp_ans[] = "YES\r";
char c;
putc(c = getc());
if (exp_ans[i++] != c) {
printf(" Aborting\n");
return 1;
} else if (!exp_ans[i]) {
puts("\n");
break;
}
}
if (!confirm_yesno()) {
printf(" Aborting\n");
return 1;
}
}

26
common/console.c
View File

@ -537,7 +537,33 @@ int ctrlc(void)
}
return 0;
}
/* Reads user's confirmation.
Returns 1 if user's input is "y", "Y", "yes" or "YES"
*/
int confirm_yesno(void)
{
int i;
char str_input[5];
/* Flush input */
while (tstc())
getc();
i = 0;
while (i < sizeof(str_input)) {
str_input[i] = getc();
putc(str_input[i]);
if (str_input[i] == '\r')
break;
i++;
}
putc('\n');
if (strncmp(str_input, "y\r", 2) == 0 ||
strncmp(str_input, "Y\r", 2) == 0 ||
strncmp(str_input, "yes\r", 4) == 0 ||
strncmp(str_input, "YES\r", 4) == 0)
return 1;
return 0;
}
/* pass 1 to disable ctrlc() checking, 0 to enable.
* returns previous state
*/

2
include/common.h
View File

@ -836,7 +836,7 @@ int ctrlc (void);
int had_ctrlc (void); /* have we had a Control-C since last clear? */
void clear_ctrlc (void); /* clear the Control-C condition */
int disable_ctrlc (int); /* 1 to disable, 0 to enable Control-C detect */
int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */
/*
* STDIO based functions (can always be used)
*/