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alsaucm: fix interactive mode, add batch mode

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2011-01-31 14:12:55 +01:00
parent 371d58b88f
commit 629fdf6445
1 changed files with 53 additions and 7 deletions
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56
alsaucm/usecase.c
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@ -49,6 +49,8 @@ struct context {
char *card;
char **argv;
int argc;
int arga;
char *batch;
unsigned int interactive:1;
unsigned int no_open:1;
unsigned int do_exit:1;
@ -92,6 +94,7 @@ static struct cmd cmds[] = {
{ OM_HELP, 0, 0, "help" },
{ OM_QUIT, 0, 0, "quit" },
{ OM_HELP, 0, 0, "h" },
{ OM_HELP, 0, 0, "?" },
{ OM_QUIT, 0, 0, "q" },
{ OM_UNKNOWN, 0, 0, NULL }
};
@ -105,6 +108,7 @@ static void dump_help(struct context *context)
" -h,--help this help\n"
" -c,--card NAME open card NAME\n"
" -i,--interactive interactive mode\n"
" -b,--batch FILE batch mode (use '-' for the stdin input)\n"
" -n,--no-open do not open first card found\n"
"\nAvailable commands:\n"
" open NAME open card NAME\n"
@ -122,7 +126,7 @@ static void dump_help(struct context *context)
static int parse_line(struct context *context, char *line)
{
char *start;
char *start, **nargv;
int c;
context->argc = 0;
@ -149,6 +153,16 @@ static int parse_line(struct context *context, char *line)
line++;
}
}
if (start[0] == '\0' && context->argc == 0)
return 0;
if (context->argc + 1 >= context->arga) {
context->arga += 4;
nargv = realloc(context->argv,
context->arga * sizeof(char *));
if (nargv == NULL)
return -ENOMEM;
context->argv = nargv;
}
context->argv[context->argc++] = start;
}
return 0;
@ -322,6 +336,12 @@ static void my_exit(struct context *context, int exitcode)
{
if (context->uc_mgr)
snd_use_case_mgr_close(context->uc_mgr);
if (context->arga > 0)
free(context->argv);
if (context->card)
free(context->card);
if (context->batch)
free(context->batch);
free(context);
exit(exitcode);
}
@ -332,12 +352,13 @@ enum {
int main(int argc, char *argv[])
{
static const char short_options[] = "hc:in";
static const char short_options[] = "hb:c:in";
static const struct option long_options[] = {
{"help", 0, 0, 'h'},
{"version", 0, 0, OPT_VERSION},
{"card", 1, 0, 'c'},
{"interactive", 0, 0, 'i'},
{"batch", 1, 0, 'b'},
{"no-open", 0, 0, 'n'},
{0, 0, 0, 0}
};
@ -346,6 +367,7 @@ int main(int argc, char *argv[])
const char **list;
int c, err, option_index;
char cmd[MAX_BUF];
FILE *in;
context = calloc(1, sizeof(*context));
if (context == NULL)
@ -367,6 +389,11 @@ int main(int argc, char *argv[])
break;
case 'i':
context->interactive = 1;
context->batch = NULL;
break;
case 'b':
context->batch = strdup(optarg);
context->interactive = 0;
break;
case 'n':
context->no_open = 1;
@ -412,15 +439,31 @@ int main(int argc, char *argv[])
my_exit(context, EXIT_FAILURE);
}
if (!context->interactive)
if (!context->interactive && !context->batch)
my_exit(context, EXIT_SUCCESS);
if (context->interactive) {
printf("%s: Interacive mode - 'q' to quit\n", command);
in = stdin;
} else {
if (strcmp(context->batch, "-") == 0) {
in = stdin;
} else {
in = fopen(context->batch, "r");
if (in == NULL) {
fprintf(stderr, "%s: error failed to open file '%s': %s\n",
command, context->batch, strerror(-errno));
my_exit(context, EXIT_FAILURE);
}
}
}
/* run the interactive command parser and handler */
while (!context->do_exit) {
while (!context->do_exit && !feof(in)) {
if (context->interactive)
printf("%s>> ", argv[0]);
fflush(stdin);
if (fgets(cmd, MAX_BUF, stdin) == NULL)
if (fgets(cmd, MAX_BUF, in) == NULL)
break;
err = parse_line(context, cmd);
if (err < 0) {
@ -433,6 +476,9 @@ int main(int argc, char *argv[])
my_exit(context, EXIT_FAILURE);
}
if (in != stdin)
fclose(in);
my_exit(context, EXIT_SUCCESS);
return EXIT_SUCCESS;
}