--- /dev/null
+/*
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 ((*cfgfile != DEFAULT_PROFILERC) && (*cfgfile != SYS_PROFILERC)) {
+ res = -ENOENT;
+ } else if ((*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 = 0; 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 > MAX_PROFILES) {
+ fprintf(stderr, "profile number '%d' is incorrect. the maximum profile number will be '%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 (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 (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;
+}
git://git.alsa-project.org / alsa-tools.git / commitdiff