/*
* Advanced Linux Sound Architecture part of envy24control
* handle profiles for envy24control using alsactl
*
* Copyright (c) by Dirk Kalis <dirk.kalis@t-online.de>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#define __PROFILES_C__
#include "envy24control.h"
#undef __PROFILES_C__
/* include string search function */
#include "strstr_icase_blank.c"
/* include forking process function */
#include "new_process.c"
/* replace tilde with home directory */
static char filename_without_tilde[MAX_FILE_NAME_LENGTH];
static char profile_name[PROFILE_NAME_FIELD_LENGTH];
/*
* check the environment and use the set variables
*/
char *check_environment(const char * const env_var, char * const var)
{
if ( (char *)getenv(env_var) == NULL )
return var;
return (char *)getenv(env_var);
}
/* replace tilde with home directory by checking HOME environment variable */
void subst_tilde_in_filename(char * const filename)
{
char new_filename[MAX_FILE_NAME_LENGTH];
char *pos_after_tilde;
if ((pos_after_tilde = strchr(filename, '~')) != NULL) {
pos_after_tilde++;
strncpy(new_filename, getenv("HOME"), MAX_FILE_NAME_LENGTH);
strncpy(new_filename + strlen(new_filename), pos_after_tilde, MAX_FILE_NAME_LENGTH - strlen(new_filename));
new_filename[MAX_FILE_NAME_LENGTH - 1] = '\0';
strncpy(filename, new_filename, MAX_FILE_NAME_LENGTH);
}
}
int which_cfgfile(char ** const cfgfile)
{
int res;
FILE *inputFile;
strncpy(filename_without_tilde, *cfgfile, MAX_FILE_NAME_LENGTH);
filename_without_tilde[MAX_FILE_NAME_LENGTH - 1] = '\0';
subst_tilde_in_filename(filename_without_tilde);
if ((inputFile = fopen(filename_without_tilde, "r")) == NULL) {
if (strcmp(*cfgfile, DEFAULT_PROFILERC) &&
strcmp(*cfgfile, SYS_PROFILERC)) {
res = -ENOENT;
} else if (!strcmp(*cfgfile, DEFAULT_PROFILERC) &&
(inputFile = fopen(SYS_PROFILERC, "r")) == NULL) {
res = -ENOENT;
} else {
fclose(inputFile);
*cfgfile = SYS_PROFILERC;
res = EXIT_SUCCESS;
}
} else {
fclose(inputFile);
*cfgfile = filename_without_tilde;
res = EXIT_SUCCESS;
}
return res;
}
int get_file_size(const char * const filename)
{
struct stat file_status;
strncpy(filename_without_tilde, filename, MAX_FILE_NAME_LENGTH);
filename_without_tilde[MAX_FILE_NAME_LENGTH - 1] = '\0';
subst_tilde_in_filename(filename_without_tilde);
if (stat(filename_without_tilde, &file_status) < 0) {
fprintf(stderr, "Cannot find file '%s'.\n", filename);
return -errno;
}
return (int)file_status.st_size;
}
int read_profiles_in_buffer(const char * const cfgfile, void * const buffer, const size_t max_length)
{
int res;
int inputFile;
if ((inputFile = open(cfgfile, O_RDONLY)) < 0) {
fprintf(stderr, "warning: can't open profiles file '%s' for reading.\n", cfgfile);
return -errno;
}
res = read(inputFile, buffer, max_length);
close(inputFile);
*(char *)(buffer + max_length - 1) = '\0';
if (res == max_length) {
fprintf(stderr, "warning: profiles file '%s' has maximum size reached.\n", cfgfile);
fprintf(stderr, "\tThe defined value for MAX_PROFILE_SIZE must be increased in 'profiles.h'.\n");
fprintf(stderr, "\tThen you must recompile the '%s' tool.\n", PROGRAM_NAME);
fprintf(stderr, "\tThe current value is %d.\n", MAX_PROFILE_SIZE);
}
return res;
}
/*
* write buffer with max_length to cfgfile
* with introduction if with_intro != 0
*/
int write_profiles_from_buffer(const char * const cfgfile, const void * const buffer, const size_t max_length, const int with_intro)
{
int res, length;
time_t date_time[MAX_NUM_STR_LENGTH];
char introduction_part[MAX_SEARCH_FIELD_LENGTH];
int outputFile;
if ((outputFile = open(cfgfile, O_WRONLY | O_CREAT | O_TRUNC | 0400000 /* O_NOFOLLOW */, FILE_CREA_MODE)) < 0) {
fprintf(stderr, "warning: can't open profiles file '%s' for writing.\n", cfgfile);
return -errno;
}
length = max_length > strlen(buffer) ? strlen(buffer) : max_length;
time(date_time);
snprintf(introduction_part, MAX_SEARCH_FIELD_LENGTH, "%s'%s'%s%s%s'%s'%s%s%s%s%s%s%s%s%s\n", \
"#\n" \
"# This file is automatically generated by ", PROGRAM_NAME, " at ", \
(char *) asctime(localtime(date_time)), \
"# Do not edit this file manually. This file will be permanently overwritten.\n" \
"# Use ", PROGRAM_NAME, " to modify and store settings.\n" \
"#\n" \
"# File-Structure:\n" \
"# ", PROFILE_HEADER_TEMPL, "\t\t- profile header\n" \
"#\t", CARD_HEADER_TEMPL, "\t- card header\n" \
"#\t", PROFILE_NAME_TEMPL, "\t\t- profile name - optional\n" \
"#\t\t***********************************\n" \
"#\t\t***** ALSA code for this card *****\n" \
"#\t\t***********************************\n" \
"#\t", CARD_FOOTER_TEMPL, "\t- card footer\n" \
"#\n");
introduction_part[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if (with_intro)
res = write(outputFile, introduction_part, strlen(introduction_part));
res = write(outputFile, buffer, length);
close(outputFile);
if (res < 0) {
fprintf(stderr, "warning: can't write profiles file '%s'.\n", cfgfile);
}
return res;
}
int create_dir_from_filename(const char * const filename)
{
int res;
char pathname[MAX_FILE_NAME_LENGTH];
char * parameter[MAX_PARAM];
char *mkdir;
mkdir = check_environment("MKDIR_PROG", MKDIR);
strncpy(pathname, filename, MAX_FILE_NAME_LENGTH);
pathname[MAX_FILE_NAME_LENGTH - 1] = '\0';
*strrchr(pathname, '/') = '\0';
subst_tilde_in_filename(pathname);
parameter[0] = mkdir;
parameter[1] = "-p";
parameter[2] = "-m";
parameter[3] = DIR_CREA_MODE;
parameter[4] = pathname;
parameter[5] = NULL;
res = new_process(parameter);
return res;
}
int compose_search_string(char * const search_string, const char * const templ, const char * const value, const char place_holder, const int max_length)
{
int res;
char *pos_place_holder;
memset(search_string, '\0', max_length);
strncpy(search_string, templ, max_length);
search_string[max_length - 1] = '\0';
if ((pos_place_holder = strchr(search_string, place_holder)) == NULL) {
res = NOTFOUND;
return res;
}
strncpy(pos_place_holder, value, max_length - strlen(search_string));
strncpy(pos_place_holder + strlen(value), \
strchr(templ, place_holder) \
+ sizeof(char), \
max_length - strlen(search_string));
search_string[max_length - 1] = '\0';
res = EXIT_SUCCESS;
return res;
}
/* search backwards first newline - start of line is position after newline */
int get_start_of_line(const char * const buffer, const int offset)
{
int begin_of_line;
for (begin_of_line = offset; begin_of_line >= 0; begin_of_line--)
{
if (buffer[begin_of_line] == '\n')
break;
}
begin_of_line++;
return begin_of_line;
}
/*
* search tokens sequential for the furthest token backwards from section_end
* tokens should be specified from nearest token to the furthest
*/
int get_begin_of_section(const char * const buffer, char * const section_tokens, const char * const token_sep, const int section_end)
{
char *search_token;
int pos_start_of_section, pos_end_of_section, pos_end_of_search;
search_token = strtok(section_tokens, token_sep);
pos_end_of_search = section_end;
do
{
pos_start_of_section = 0;
pos_end_of_section = 0;
while ((pos_start_of_section = strstr_icase_blank(buffer + pos_end_of_section, search_token)) < pos_end_of_search - pos_end_of_section)
{
if (pos_start_of_section < 0)
break;
pos_end_of_section += pos_start_of_section;
pos_end_of_section++;
}
pos_end_of_section--;
pos_start_of_section = pos_end_of_section;
pos_end_of_search = pos_end_of_section;
if (pos_start_of_section < 0) {
pos_start_of_section = NOTFOUND;
// fprintf(stderr, "Begin of section for '%s' can't be found\n", search_token);
return pos_start_of_section;
}
} while ((search_token = strtok(NULL, token_sep)) != NULL);
return pos_start_of_section;
}
/*
* search tokens sequential for the nearest token from section_begin
* tokens should be specified from furthest token to the nearest
*/
int get_end_of_section(const char * const buffer, char * const section_tokens, const char * const token_sep, const int section_begin)
{
char *search_token;
int pos_end_of_section, pos_end_of_search;
search_token = strtok(section_tokens, token_sep);
pos_end_of_section = strlen(buffer);
do
{
pos_end_of_search = strstr_icase_blank(buffer + section_begin, search_token);
if (!((pos_end_of_search < 0) || (pos_end_of_search > pos_end_of_section))) {
pos_end_of_section = pos_end_of_search;
}
} while ((search_token = strtok(NULL, token_sep)) != NULL);
return pos_end_of_section == strlen(buffer) ? pos_end_of_section : pos_end_of_section + section_begin;
}
int get_profile_begin(const char * const buffer, const int profile_number)
{
char header[MAX_SEARCH_FIELD_LENGTH], profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
/* compose profile header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", profile_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, PROFILE_HEADER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
return strstr_icase_blank(buffer, header);
}
int get_profile_end(const char * const buffer, const int profile_number)
{
char header[MAX_SEARCH_FIELD_LENGTH];
char place_holder;
int pos_profile_begin;
if ((pos_profile_begin = get_profile_begin(buffer, profile_number)) < 0)
return pos_profile_begin;
place_holder = PLACE_HOLDER_NUM;
strncpy(header, PROFILE_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
*strchr(header, place_holder) = '\0';
return get_end_of_section(buffer, header, TOKEN_SEP, pos_profile_begin + sizeof(char));
}
int get_card_begin(const char * const buffer, const int profile_number, const int card_number)
{
char header[MAX_SEARCH_FIELD_LENGTH], profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
int pos_profile_begin, pos_profile_end, pos_card_begin;
if ((pos_profile_begin = get_profile_begin(buffer, profile_number)) < 0)
return pos_profile_begin;
pos_profile_end = get_profile_end(buffer, profile_number);
/* compose card header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_HEADER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if ((pos_card_begin = strstr_icase_blank(buffer + pos_profile_begin, header)) < 0)
return pos_card_begin;
if ((pos_card_begin += pos_profile_begin) > pos_profile_end)
return NOTFOUND;
return pos_card_begin;
}
int get_card_end(const char * const buffer, const int profile_number, const int card_number)
{
char header[MAX_SEARCH_FIELD_LENGTH], profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
int pos_card_begin;
if ((pos_card_begin = get_card_begin(buffer, profile_number, card_number)) < 0)
return pos_card_begin;
/* searching "[ profile | < card | < /card # >" */
/* add "[ profile |" to search_field */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
strncpy(header, PROFILE_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
*strchr(header, place_holder) = '\0';
strncpy(header + strlen(header), TOKEN_SEP, MAX_SEARCH_FIELD_LENGTH - strlen(header));
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
/* add "< card |" to header */
strncpy(header + strlen(header), CARD_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH - strlen(header));
*strchr(header, place_holder) = '\0';
strncpy(header + strlen(header), TOKEN_SEP, MAX_SEARCH_FIELD_LENGTH - strlen(header));
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
/* add "< /card # >" to header */
compose_search_string(header + strlen(header), CARD_FOOTER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH - strlen(header));
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
return get_end_of_section(buffer, header, TOKEN_SEP, pos_card_begin + sizeof(char));
}
int get_pos_for_next_card(const char * const buffer, const int profile_number, const int card_number)
{
char header[MAX_SEARCH_FIELD_LENGTH], profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
int pos_next_card;
if ((pos_next_card = get_card_end(buffer, profile_number, card_number)) < 0)
return pos_next_card;
/* add "< /card # >" to header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_FOOTER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if (strstr_icase_blank(buffer + pos_next_card, header) == 0) {
while((buffer[pos_next_card] != '\n') && (buffer[pos_next_card] != '\0'))
pos_next_card++;
if (buffer[pos_next_card] == '\n')
pos_next_card++;
}
return pos_next_card;
}
int get_number_from_header(const char * const header_string)
{
char string[MAX_SEARCH_FIELD_LENGTH];
char number_string[MAX_NUM_STR_LENGTH];
char *pos_number;
strncpy(string, header_string, MAX_SEARCH_FIELD_LENGTH);
string[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if ((pos_number = strpbrk(string, "0123456789")) == NULL) {
return -EINVAL;
} else {
strncpy(number_string, pos_number, MAX_NUM_STR_LENGTH);
number_string[MAX_NUM_STR_LENGTH - 1] = '\0';
}
return atoi(number_string);
}
char *get_profile_name_from_header(const char * const header_string)
{
char string[MAX_SEARCH_FIELD_LENGTH];
char header_templ[MAX_SEARCH_FIELD_LENGTH];
char left_name_border;
memset(profile_name, '\0', PROFILE_NAME_FIELD_LENGTH);
strncpy(string, header_string, MAX_SEARCH_FIELD_LENGTH);
string[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
strncpy(header_templ, PROFILE_NAME_TEMPL, MAX_SEARCH_FIELD_LENGTH);
header_templ[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
string[strstr_icase_blank(string, strchr(header_templ, PLACE_HOLDER_STR) + sizeof(char))] = '\0';
left_name_border = *(strchr(header_templ, PLACE_HOLDER_STR) - sizeof(char));
strncpy(profile_name, strchr(string + sizeof(char), left_name_border) + sizeof(char), PROFILE_NAME_FIELD_LENGTH);
profile_name[PROFILE_NAME_FIELD_LENGTH - 1] = '\0';
return profile_name;
}
/* search max card number in profile */
int get_max_card_number_in_profile(const char * const buffer, const int profile_number)
{
char header[MAX_SEARCH_FIELD_LENGTH];
char place_holder;
int pos_card_next, pos_profile_end, pos_card_begin, card_number, card_number_max;
place_holder = PLACE_HOLDER_NUM;
card_number_max = NOTFOUND;
strncpy(header, CARD_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
*strchr(header, place_holder) = '\0';
pos_card_next = get_profile_begin(buffer, profile_number);
pos_profile_end = get_profile_end(buffer, profile_number);
while ((pos_card_begin = strstr_icase_blank(buffer + pos_card_next, header)) >= 0)
{
if ((pos_card_begin += pos_card_next) > pos_profile_end)
break;
pos_card_next = pos_card_begin + sizeof(char);
card_number = get_number_from_header(buffer + pos_card_begin);
if (card_number > card_number_max)
card_number_max = card_number;
}
return card_number_max;
}
int get_pos_name_header_from_card(const char * const buffer, const int profile_number, const int card_number)
{
char header[MAX_SEARCH_FIELD_LENGTH];
char place_holder;
int pos_card_begin, pos_card_end, pos_name_header;
pos_card_begin = get_card_begin(buffer, profile_number, card_number);
pos_card_end = get_card_end(buffer, profile_number, card_number);
place_holder = PLACE_HOLDER_STR;
strncpy(header, PROFILE_NAME_TEMPL, MAX_SEARCH_FIELD_LENGTH);
*strchr(header, place_holder) = '\0';
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if ((pos_name_header = strstr_icase_blank(buffer + pos_card_begin, header)) >= 0) {
if ((pos_name_header += pos_card_begin) < pos_card_end) {
return pos_name_header;
}
}
return NOTFOUND;
}
int get_begin_of_alsa_section(const char * const buffer, const int profile_number, const int card_number)
{
char search_string[MAX_SEARCH_FIELD_LENGTH];
int card_section_begin, card_section_end;
int begin_of_alsa_section, pos_after_alsa_section;
if ((card_section_begin = get_card_begin(buffer, profile_number, card_number)) < 0)
return card_section_begin;
card_section_end = get_card_end(buffer, profile_number, card_number);
strncpy(search_string, PROFILE_NAME_TEMPL, MAX_SEARCH_FIELD_LENGTH);
search_string[MAX_SEARCH_FIELD_LENGTH -1] = '\0';
*strchr(search_string, PLACE_HOLDER_STR) = '\0';
pos_after_alsa_section = get_start_of_line(buffer, card_section_end);
begin_of_alsa_section = strstr_icase_blank(buffer + card_section_begin, search_string);
begin_of_alsa_section = begin_of_alsa_section < 0 ? card_section_begin : begin_of_alsa_section + card_section_begin;
if (begin_of_alsa_section > pos_after_alsa_section)
begin_of_alsa_section = card_section_begin;
while (begin_of_alsa_section < pos_after_alsa_section)
{
if (buffer[begin_of_alsa_section] == '\n') {
begin_of_alsa_section++;
break;
}
begin_of_alsa_section++;
}
if (begin_of_alsa_section >= pos_after_alsa_section)
begin_of_alsa_section = NOTFOUND;
return begin_of_alsa_section;
}
int reorganize_profiles(char * const buffer, const int max_length)
{
int profile_number, card_number, card_number_max;
int res;
int pos_profile_begin, pos_profile_end, pos_card_begin, pos_card_end, pos_name_header;
int pos_alsa_section_begin, pos_after_alsa_section;
char header[MAX_SEARCH_FIELD_LENGTH];
void *buffer_copy = NULL;
char profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
if ((buffer_copy = malloc(max_length)) == NULL) {
res = -ENOBUFS;
profile_number = res;
fprintf(stderr, "Cannot allocate memory for reorganize profiles.\n");
return res;
}
memset(buffer_copy, '\0', max_length);
for (profile_number = 1; profile_number <= MAX_PROFILES; profile_number++)
{
if ((pos_profile_begin = get_profile_begin(buffer, profile_number)) < 0)
continue;
/* write profile header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", profile_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, PROFILE_HEADER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer_copy + strlen(buffer_copy), max_length - strlen(buffer_copy), "%s\n", header);
pos_profile_end = get_profile_end(buffer, profile_number);
/* search max card number in profile */
card_number_max = get_max_card_number_in_profile(buffer, profile_number);
for (card_number = 0; card_number <= card_number_max; card_number++)
{
if ((pos_card_begin = get_card_begin(buffer, profile_number, card_number)) < 0)
continue;
/* write card header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_HEADER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer_copy + strlen(buffer_copy), max_length - strlen(buffer_copy), "%s\n", header);
pos_card_end = get_card_end(buffer, profile_number, card_number);
/* write profile name */
place_holder = PLACE_HOLDER_STR;
if ((pos_name_header = get_pos_name_header_from_card(buffer, profile_number, card_number)) >= 0) {
compose_search_string(header, PROFILE_NAME_TEMPL, get_profile_name_from_header(buffer + pos_name_header), place_holder, \
MAX_SEARCH_FIELD_LENGTH);
snprintf(buffer_copy + strlen(buffer_copy), max_length - strlen(buffer_copy), "%s\n", header);
}
/* copy alsa section if exists */
if ((pos_alsa_section_begin = get_begin_of_alsa_section(buffer, profile_number, card_number)) >= 0) {
pos_after_alsa_section = get_start_of_line(buffer, pos_card_end);
strncpy(buffer_copy + strlen(buffer_copy), buffer + pos_alsa_section_begin, pos_after_alsa_section - pos_alsa_section_begin);
}
/* write card footer */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_FOOTER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer_copy + strlen(buffer_copy), max_length - strlen(buffer_copy), "%s\n", header);
}
}
memset(buffer, '\0', max_length);
strncpy(buffer, buffer_copy, max_length);
buffer[max_length - 1] = '\0';
free(buffer_copy);
buffer_copy = NULL;
return EXIT_SUCCESS;
}
int delete_card_from_profile(char * const buffer, const int profile_number, const int card_number, const int max_length)
{
int pos_card_begin, pos_next_card;
char *buffer_copy = NULL;
if ((pos_card_begin = get_card_begin(buffer, profile_number, card_number)) < 0)
return pos_card_begin;
if ((buffer_copy = malloc(max_length)) == NULL) {
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
fprintf(stderr, "Cannot delete card '%d' from profile '%d'.\n", card_number, profile_number);
return -ENOBUFS;
}
memset(buffer_copy, '\0', max_length);
pos_next_card = get_pos_for_next_card(buffer, profile_number, card_number);
strncpy(buffer_copy, buffer, pos_card_begin);
strncpy(buffer_copy + pos_card_begin, buffer + pos_next_card, max_length - pos_card_begin);
buffer_copy[max_length - 1] = '\0';
memset(buffer, '\0', max_length);
strncpy(buffer, buffer_copy, max_length);
buffer[max_length - 1] = '\0';
free(buffer_copy);
buffer_copy = NULL;
return EXIT_SUCCESS;
}
int save_restore_alsactl_settings(char * const tmpfile, const int card_number, char * const operation)
{
int res;
char * parameter[MAX_PARAM];
char *alsactl;
char profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH];
alsactl = check_environment("ALSACTL_PROG", ALSACTL);
snprintf(profile_number_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
parameter[0] = alsactl;
parameter[1] = "-f";
parameter[2] = tmpfile;
parameter[3] = operation;
parameter[4] = profile_number_or_card_number_as_str;
parameter[5] = NULL;
res = new_process(parameter);
return res;
}
void compose_tmpfile_name(char * const tmpfile, const char * const cfgfile)
{
strncpy(tmpfile, cfgfile, MAX_FILE_NAME_LENGTH);
tmpfile[MAX_FILE_NAME_LENGTH - 1] = '\0';
strncpy(tmpfile + strlen(tmpfile), "_alsactl_tmp", MAX_FILE_NAME_LENGTH - strlen(tmpfile));
tmpfile[MAX_FILE_NAME_LENGTH - 1] = '\0';
}
/*
* restore card settings
* if profile_number < 0 profile_name must be given
* if booth is given profile_number will be used profile_name will be ignored
*/
int restore_profile(const int profile_number, const int card_number, const char * profile_name, char * cfgfile)
{
int res, max_length;
int begin_of_alsa_section, pos_after_alsa_section, profile_nr;
char *buffer = NULL;
char tmpfile[MAX_FILE_NAME_LENGTH];
int get_profile_number(const char * const profile_name_given, const int card_number, char * cfgfile);
if ((profile_number < 0) && (profile_name == NULL)) {
fprintf(stderr, "Without profile number - profile name for card '%d' must given.\n", card_number);
return -EINVAL;
}
if ((max_length = get_file_size(cfgfile)) < 0) {
fprintf(stderr, "Cannot get file size from '%s'.\n", cfgfile);
return max_length;
}
max_length++;
if ((buffer = malloc(max_length)) == NULL) {
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
fprintf(stderr, "Cannot read settings for card '%d' in profile '%d'.\n", card_number, profile_number);
return -ENOBUFS;
}
memset(buffer, '\0', max_length);
if ((res = read_profiles_in_buffer(cfgfile, buffer, max_length)) <= 0) {
if (profile_number < 0) {
fprintf(stderr, "Cannot read settings for card '%d' in profile '%s'.\n", card_number, profile_name);
} else {
fprintf(stderr, "Cannot read settings for card '%d' in profile '%d'.\n", card_number, profile_number);
}
free(buffer);
buffer = NULL;
return -EINVAL;
}
profile_nr = profile_number;
if (profile_number < 0) {
if ((profile_nr = get_profile_number(profile_name, card_number, cfgfile)) < 0) {
fprintf(stderr, "Cannot find profile '%s' for card '%d'.\n", profile_name, card_number);
free(buffer);
buffer = NULL;
return profile_nr;
}
}
if ((begin_of_alsa_section = get_begin_of_alsa_section(buffer, profile_nr, card_number)) < 0) {
fprintf(stderr, "Cannot find alsa section for card '%d' in profile '%d'.\n", card_number, profile_nr);
free(buffer);
buffer = NULL;
return begin_of_alsa_section;
}
pos_after_alsa_section = get_start_of_line(buffer, get_card_end(buffer, profile_nr, card_number));
compose_tmpfile_name(tmpfile, cfgfile);
if ((res = write_profiles_from_buffer(tmpfile, buffer + begin_of_alsa_section, pos_after_alsa_section - begin_of_alsa_section, 0)) >= 0) {
res = save_restore_alsactl_settings(tmpfile, card_number, ALSACTL_OP_RESTORE);
unlink(tmpfile);
}
free(buffer);
buffer = NULL;
if (res > 0)
res = EXIT_SUCCESS;
return res;
}
int append_alsactl_settings(const char * const tmpfile, char * const buffer_position, const int max_length)
{
int res;
res = read_profiles_in_buffer(tmpfile, buffer_position, max_length);
if (res >= 0)
return EXIT_SUCCESS;
return res;
}
/*
* insert entry for card in profile with alsactl settings
* if profile_number < 0 no profile header is needed
* if pos_end < 0 the new entry will be appended
* if profile_name == NULL the profile name header will not be written
*/
int insert_card(char * const buffer, const int profile_number, const int card_number, const char * const profile_name, const int pos_begin, \
const int pos_end, char * const tmpfile, const int max_length)
{
int res;
char *buffer_copy = NULL;
char header[MAX_SEARCH_FIELD_LENGTH];
char profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char profile_name_copy[PROFILE_NAME_FIELD_LENGTH];
char place_holder;
if ((res = save_restore_alsactl_settings(tmpfile, card_number, ALSACTL_OP_STORE)) < 0)
return res;
if (pos_end >= 0) {
if ((buffer_copy = malloc(max_length)) == NULL) {
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
fprintf(stderr, "Cannot save settings for card '%d' in profile '%d'.\n", card_number, profile_number);
unlink(tmpfile);
return -ENOBUFS;
}
memset(buffer_copy, '\0', max_length);
strncpy(buffer_copy, buffer, max_length);
buffer_copy[max_length - 1] = '\0';
memset(buffer + pos_begin, '\0', max_length - pos_begin);
}
if (profile_number > 0) {
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_number_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", profile_number);
profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, PROFILE_HEADER_TEMPL, profile_number_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer + strlen(buffer), max_length - strlen(buffer), "%s\n", header);
buffer[max_length - 1] = '\0';
}
/* compose card header */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_number_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_HEADER_TEMPL, profile_number_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer + strlen(buffer), max_length - strlen(buffer), "%s\n", header);
buffer[max_length - 1] = '\0';
/* compose profile name header if needed */
if (profile_name != NULL) {
strncpy(profile_name_copy, profile_name, PROFILE_NAME_FIELD_LENGTH);
profile_name_copy[PROFILE_NAME_FIELD_LENGTH - 1] = '\0';
place_holder = PLACE_HOLDER_STR;
compose_search_string(header, PROFILE_NAME_TEMPL, profile_name_copy, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer + strlen(buffer), max_length - strlen(buffer), "%s\n", header);
buffer[max_length - 1] = '\0';
}
res = append_alsactl_settings(tmpfile, buffer + strlen(buffer), max_length - strlen(buffer));
buffer[max_length - 1] = '\0';
unlink(tmpfile);
/* compose card footer */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_number_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_number_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(header, CARD_FOOTER_TEMPL, profile_number_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
snprintf(buffer + strlen(buffer), max_length - strlen(buffer), "%s\n", header);
buffer[max_length - 1] = '\0';
if (pos_end >= 0) {
strncpy(buffer + strlen(buffer), buffer_copy + pos_end, max_length - strlen(buffer));
free(buffer_copy);
buffer_copy = NULL;
}
if (res >= 0)
res = EXIT_SUCCESS;
return res;
}
int save_profile(const int profile_number, const int card_number, const char * const profile_name, char *cfgfile)
{
int res, profile_begin, profile_end, profile_nr;
int card_begin, pos_next_card, card_nr, card_number_max;
const int no_profile_header = -1;
const int append = -1;
char *buffer = NULL;
char tmpfile[MAX_FILE_NAME_LENGTH];
int max_length;
if ((max_length = get_file_size(cfgfile)) < 0) {
fprintf(stderr, "This operation will create a new profiles file '%s'.\n", cfgfile);
max_length = 0;
}
max_length += MAX_PROFILE_SIZE;
if ((buffer = malloc(max_length)) == NULL) {
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
fprintf(stderr, "Cannot save settings for card '%d' in profile '%d'.\n", card_number, profile_number);
return -ENOBUFS;
}
memset(buffer, '\0', max_length);
compose_tmpfile_name(tmpfile, cfgfile);
/* file found */
if ((res = open(cfgfile, O_RDONLY | 0400000 /* NOFOLLOW */)) >= 0) {
close(res);
res = read_profiles_in_buffer(cfgfile, buffer, max_length);
if (res > 0)
res = reorganize_profiles(buffer, max_length);
}
res = strlen(buffer);
if (res > 0) {
if ((profile_begin = get_profile_begin(buffer, profile_number)) < 0) {
if (profile_number < MAX_PROFILES) {
for (profile_nr = 1; profile_nr <= MAX_PROFILES; profile_nr++)
{
if (profile_nr > profile_number) {
if ((profile_begin = get_profile_begin(buffer, profile_nr)) >= 0)
break;
}
}
if (profile_begin < 0)
profile_begin = strlen(buffer);
} else {
profile_begin = strlen(buffer);
}
if (profile_begin < strlen(buffer)) {
res = insert_card(buffer, profile_number, card_number, profile_name, profile_begin, profile_begin, tmpfile, max_length);
} else {
res = insert_card(buffer, profile_number, card_number, profile_name, profile_begin, append, tmpfile, max_length);
}
} else {
if ((card_begin = get_card_begin(buffer, profile_number, card_number)) < 0) {
card_number_max = get_max_card_number_in_profile(buffer, profile_number);
profile_end = get_profile_end(buffer, profile_number);
if (card_number_max > card_number) {
for (card_nr = 0; card_nr <= card_number_max; card_nr++)
{
if (card_nr > card_number) {
if ((card_begin = get_card_begin(buffer, profile_number, card_number)) >= 0)
break;
}
}
if (card_begin < 0)
card_begin = profile_end;
} else {
card_begin = profile_end;
}
if (card_begin < strlen(buffer)) {
res = insert_card(buffer, no_profile_header, card_number, profile_name, card_begin, card_begin, tmpfile, max_length);
} else {
res = insert_card(buffer, no_profile_header, card_number, profile_name, strlen(buffer), append, tmpfile, max_length);
}
} else {
pos_next_card = get_pos_for_next_card(buffer, profile_number, card_number);
res = insert_card(buffer, no_profile_header, card_number, profile_name, card_begin, pos_next_card, tmpfile, max_length);
}
}
} else {
res = insert_card(buffer, profile_number, card_number, profile_name, 0, -1, tmpfile, max_length);
}
if (res < 0) {
fprintf(stderr, "Cannot store profile '%d' for card '%d'.\n", profile_number, card_number);
} else {
res = write_profiles_from_buffer(cfgfile, buffer, max_length, 1);
}
free(buffer);
buffer = NULL;
if (res > 0)
res = EXIT_SUCCESS;
return res;
}
int delete_card(const int card_number, char * cfgfile)
{
int res, profile_number, max_length;
void *buffer = NULL;
if (cfgfile == NULL)
cfgfile = DEFAULT_PROFILERC;
strncpy(filename_without_tilde, cfgfile, MAX_FILE_NAME_LENGTH);
filename_without_tilde[MAX_FILE_NAME_LENGTH - 1] = '\0';
subst_tilde_in_filename(filename_without_tilde);
cfgfile = filename_without_tilde;
if ((res = open(cfgfile, O_RDWR | 0400000 /* O_NOFOLLOW */, FILE_CREA_MODE)) < 0) {
fprintf(stderr, "Cannot open configuration file '%s' for writing.\n", cfgfile);
fprintf(stderr, "Cannot save settings for card '%d'.\n", card_number);
return -errno;
}
close(res);
if (res >= 0) {
if ((max_length = get_file_size(cfgfile)) < 0) {
fprintf(stderr, "Cannot get file size for '%s'.\n", cfgfile);
return max_length;
}
max_length++;
if ((buffer = malloc(max_length)) == NULL) {
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
fprintf(stderr, "Cannot delete card '%d'.\n", card_number);
return -ENOBUFS;
}
memset(buffer, '\0', max_length);
res = read_profiles_in_buffer(cfgfile, buffer, max_length);
if (res > 0) {
for (profile_number = 1; profile_number <= MAX_PROFILES; profile_number++)
delete_card_from_profile(buffer, profile_number, card_number, max_length);
res = EXIT_SUCCESS;
} else {
res = NOTFOUND;
}
res = write_profiles_from_buffer(cfgfile, buffer, max_length, 1);
free(buffer);
buffer = NULL;
} else {
res = NOTFOUND;
}
return res;
}
/*
* First search profile name. if profile name is found look that this profile
* name is from the specified card number.
* if not search next occurence from given profile name.
*/
int get_profile_number(const char * const profile_name_given, const int card_number, char * cfgfile)
{
int res, pos_name, pos_name_offset, pos_begin, pos_end, found;
int profile_number, pos_profile;
void *buffer = NULL;
char search_field[MAX_SEARCH_FIELD_LENGTH];
char header_templ[MAX_SEARCH_FIELD_LENGTH];
char profile_or_card_number_as_str[MAX_NUM_STR_LENGTH];
char place_holder;
int max_length;
if (strlen(profile_name_given) == 0) {
fprintf(stderr, "Profile name for card '%d' must be given.\n", card_number);
return -EINVAL;
}
/* cut profile name to MAX_PROFILE_NAME_LENGTH */
strncpy(profile_name, profile_name_given, PROFILE_NAME_FIELD_LENGTH);
profile_name[PROFILE_NAME_FIELD_LENGTH - 1] = '\0';
if (cfgfile == NULL)
cfgfile = DEFAULT_PROFILERC;
res = which_cfgfile(&cfgfile);
if (res < 0) {
profile_number = res;
} else {
if ((max_length = get_file_size(cfgfile)) < 0) {
fprintf(stderr, "Cannot get file size from '%s'.\n", cfgfile);
return max_length;
}
max_length++;
if ((buffer = malloc(max_length)) == NULL) {
res = -ENOBUFS;
profile_number = res;
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
return profile_number;
}
memset(buffer, '\0', max_length);
res = read_profiles_in_buffer(cfgfile, buffer, max_length);
if (res > 0) {
/* insert profile name in PROFILE_NAME_TEMPL */
place_holder = PLACE_HOLDER_STR;
compose_search_string(search_field, PROFILE_NAME_TEMPL, profile_name, place_holder, MAX_SEARCH_FIELD_LENGTH);
pos_name = 0;
pos_name_offset = 0;
pos_begin = NOTFOUND;
found = 0;
while ((pos_name = strstr_icase_blank(buffer + pos_name_offset, search_field)) >= 0)
{
pos_name += pos_name_offset;
/* search begin of section for the given card
from profile name pointer backward */
/* insert card number in CARD_HEADER_TEMPL */
place_holder = PLACE_HOLDER_NUM;
snprintf(profile_or_card_number_as_str, MAX_NUM_STR_LENGTH, "%d", card_number);
profile_or_card_number_as_str[MAX_NUM_STR_LENGTH - 1] = '\0';
compose_search_string(search_field, CARD_HEADER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
search_field[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
if ((pos_begin = get_begin_of_section(buffer, search_field, TOKEN_SEP, pos_name)) < 0)
break;
/* searching "[ profile | < card | < /card # >" */
/* add "[ profile |" to search_field */
strncpy(header_templ, PROFILE_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
*strchr(header_templ, place_holder) = '\0';
strncpy(search_field, header_templ, MAX_SEARCH_FIELD_LENGTH);
strncpy(search_field + strlen(search_field), TOKEN_SEP, MAX_SEARCH_FIELD_LENGTH - strlen(search_field));
/* add "< card |" to search_field */
strncpy(header_templ, CARD_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
*strchr(header_templ, place_holder) = '\0';
strncpy(search_field + strlen(search_field), header_templ, MAX_SEARCH_FIELD_LENGTH - strlen(search_field));
strncpy(search_field + strlen(search_field), TOKEN_SEP, MAX_SEARCH_FIELD_LENGTH - strlen(search_field));
search_field[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
/* add "< card # >" to search_field */
compose_search_string(header_templ, CARD_FOOTER_TEMPL, profile_or_card_number_as_str, place_holder, MAX_SEARCH_FIELD_LENGTH);
header_templ[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
strncpy(search_field + strlen(search_field), header_templ, MAX_SEARCH_FIELD_LENGTH - strlen(search_field));
search_field[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
pos_end = get_end_of_section(buffer, search_field, TOKEN_SEP, pos_begin + sizeof(char));
if ((pos_name > pos_begin) && (pos_name < pos_end) && (pos_begin >= 0) && (pos_end >= 0)) {
found = 1;
break;
}
pos_name_offset = pos_name + sizeof(char);
place_holder = PLACE_HOLDER_STR;
compose_search_string(search_field, PROFILE_NAME_TEMPL, profile_name, place_holder, MAX_SEARCH_FIELD_LENGTH);
}
if (found) {
place_holder = PLACE_HOLDER_NUM;
strncpy(search_field, PROFILE_HEADER_TEMPL, MAX_SEARCH_FIELD_LENGTH);
search_field[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
*strchr(search_field, place_holder) = '\0';
if ((pos_profile = get_begin_of_section(buffer, search_field, TOKEN_SEP, pos_begin)) < 0) {
profile_number = NOTFOUND;
} else {
profile_number = get_number_from_header(buffer + pos_profile);
/* check profile header syntax */
if (get_profile_begin(buffer, profile_number) != pos_profile) {
profile_number = -EINVAL;
/* only the profile line */
strncpy(search_field, buffer + pos_profile, MAX_SEARCH_FIELD_LENGTH);
search_field[MAX_SEARCH_FIELD_LENGTH - 1] = '\0';
*strchr(search_field, '\n') = '\0';
fprintf(stderr, "profile header '%s' has incorrect syntax.\n", search_field);
fprintf(stderr, "profile header syntax is '%s'\n" \
"by replacing place holder '%c' with profile number.\n", \
PROFILE_HEADER_TEMPL, PLACE_HOLDER_NUM);
/* check profile number */
} else if (profile_number < 1 || profile_number > MAX_PROFILES) {
fprintf(stderr, "profile number '%d' is incorrect. the profile number will be in [1 ... %d].\n", \
profile_number, MAX_PROFILES);
profile_number = -EINVAL;
}
}
} else {
profile_number = NOTFOUND;
}
} else {
profile_number = NOTFOUND;
}
free(buffer);
buffer = NULL;
}
return profile_number;
}
char *get_profile_name(const int profile_number, const int card_number, char * cfgfile)
{
int res, max_length;
void *buffer = NULL;
if (profile_number < 1 || profile_number > MAX_PROFILES) {
fprintf(stderr, "profile number '%d' is incorrect. the profile number will be in [1 ... %d].\n", \
profile_number, MAX_PROFILES);
return NULL;
}
if (cfgfile == NULL)
cfgfile = DEFAULT_PROFILERC;
res = which_cfgfile(&cfgfile);
if (res < 0) {
snprintf(profile_name, PROFILE_NAME_FIELD_LENGTH, "%d", profile_number);
} else {
if ((max_length = get_file_size(cfgfile)) < 0) {
fprintf(stderr, "Cannot get file size from '%s'.\n", cfgfile);
snprintf(profile_name, PROFILE_NAME_FIELD_LENGTH, "%d", profile_number);
return profile_name;
}
max_length++;
if ((buffer = malloc(max_length)) == NULL) {
res = -ENOBUFS;
snprintf(profile_name, PROFILE_NAME_FIELD_LENGTH, "%d", profile_number);
fprintf(stderr, "Cannot allocate memory for reading profiles.\n");
return profile_name;
}
memset(buffer, '\0', max_length);
memset(profile_name, '\0', PROFILE_NAME_FIELD_LENGTH);
res = read_profiles_in_buffer(cfgfile, buffer, max_length);
if (res > 0) {
if ((res = get_pos_name_header_from_card(buffer, profile_number, card_number)) >= 0) {
get_profile_name_from_header(buffer + (res * sizeof(char)));
profile_name[PROFILE_NAME_FIELD_LENGTH - 1] = '\0';
}
}
free(buffer);
buffer = NULL;
if (strlen(profile_name) == 0) {
snprintf(profile_name, PROFILE_NAME_FIELD_LENGTH, "%d", profile_number);
}
}
return profile_name;
}
int save_restore(const char * const operation, const int profile_number, const int card_number, char * cfgfile, const char * const profile_name)
{
int res;
if (profile_number < 1 || profile_number > MAX_PROFILES) {
fprintf(stderr, "profile number '%d' is incorrect. the profile number will be in [1 ... %d].\n", \
profile_number, MAX_PROFILES);
return -EINVAL;
}
if (cfgfile == NULL)
cfgfile = DEFAULT_PROFILERC;
if (!strcmp(operation, ALSACTL_OP_STORE)) {
strncpy(filename_without_tilde, cfgfile, MAX_FILE_NAME_LENGTH);
filename_without_tilde[MAX_FILE_NAME_LENGTH - 1] = '\0';
subst_tilde_in_filename(filename_without_tilde);
cfgfile = filename_without_tilde;
if ((res = open(cfgfile, O_RDONLY | 0400000 /* O_NOFOLLOW */)) < 0) {
if ((res = create_dir_from_filename(cfgfile)) < 0) {
fprintf(stderr, "Cannot open configuration file '%s' for writing.\n", cfgfile);
fprintf(stderr, "Cannot save settings for card '%d' in profile '%d'.\n", card_number, profile_number);
return -EACCES;
}
if ((res = open(cfgfile, O_RDWR | O_CREAT | 0400000 /* O_NOFOLLOW */, FILE_CREA_MODE)) < 0) {
fprintf(stderr, "Cannot open configuration file '%s' for writing.\n", cfgfile);
fprintf(stderr, "Cannot save settings for card '%d' in profile '%d'.\n", card_number, profile_number);
return -errno;
}
unlink(cfgfile);
} else {
if ((res = open(cfgfile, O_RDWR | 0400000 /* O_NOFOLLOW */, FILE_CREA_MODE)) < 0) {
fprintf(stderr, "Cannot open configuration file '%s' for writing.\n", cfgfile);
fprintf(stderr, "Cannot save settings for card '%d' in profile '%d'.\n", card_number, profile_number);
return -errno;
}
}
res = save_profile(profile_number, card_number, profile_name, cfgfile);
} else if (!strcmp(operation, ALSACTL_OP_RESTORE)) {
res = which_cfgfile(&cfgfile);
if (res < 0) {
fprintf(stderr, "Cannot open profiles file '%s' ...\n", cfgfile);
fprintf(stderr, "Use current settings.\n");
fprintf(stderr, "You can store this settings to profile no. %d in file '%s' by pressing save button.\n",
profile_number, cfgfile);
} else {
if ((res = restore_profile(profile_number, card_number, profile_name, cfgfile)) < 0) {
fprintf(stderr, "Cannot restore settings for card '%d' in profile '%d'.\n", card_number, profile_number);
fprintf(stderr, "Use current settings.\n");
}
}
} else {
fprintf(stderr, "%s: Unknown command '%s'...\n",
PROGRAM_NAME, operation);
res = -ENODEV;
}
return res < 0 ? -EXIT_FAILURE : EXIT_SUCCESS;
}