Git-Url:
http://git.frugalware.org/gitweb/gitweb.cgi?p=fun.git;a=commitdiff;h=8d172261e1d7f3c3b4849b55282b4b3a6129865d
commit 8d172261e1d7f3c3b4849b55282b4b3a6129865d
Author: Priyank <[EMAIL PROTECTED]>
Date: Sat Nov 3 12:15:41 2007 +0530
added a new configuration file parser - wejpconfig
diff --git a/src/wejpconfig.c b/src/wejpconfig.c
new file mode 100644
index 0000000..d81a118
--- /dev/null
+++ b/src/wejpconfig.c
@@ -0,0 +1,233 @@
+/*
+ * Wejp's Config File Parser
+ *
+ * File: wejpconfig.c
+ *
+ * Copyright (c) 2003-2004 Johannes Heimansberg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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 VERSION 20051026
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "wejpconfig.h"
+
+/* Returns the complete path to ~/"filename" */
+char *cfg_get_path_to_config_file(char *filename)
+{
+ char *home_directory, *path_to_config_file;
+
+ home_directory = getenv("HOME");
+ path_to_config_file = (char*)malloc((strlen(home_directory) +
+ strlen(filename) + 2) *
sizeof(char));
+ sprintf(path_to_config_file, "%s/%s", home_directory, filename);
+ return path_to_config_file;
+}
+
+/* Must be called before the first use of a ConfigFile struct element */
+void cfg_init_config_file_struct(ConfigFile *cf)
+{
+ cf->lastkey = 0;
+}
+
+/* Checks wether the config file exists or not */
+int cfg_check_config_file(char *filename)
+{
+ FILE *file;
+ int result = 0;
+ file = fopen(filename, "r");
+ if (file == NULL)
+ result = -1;
+ else
+ fclose(file);
+ return result;
+}
+
+/* Add a new key to the configuration */
+int cfg_add_key(ConfigFile *cf, char *key, char *value)
+{
+ int result = 0;
+ int strsize = 0;
+ int i;
+
+ if (cfg_get_key_value(*cf, key) != NULL) /* Key already
exists->overwrite */
+ {
+ for (i = 0; i < cf->lastkey; i++)
+ if (strncmp(key, cf->key[i], 127) == 0)
+ {
+ free(cf->key[i]); /* Free allocated memory */
+ free(cf->value[i]);
+
+ /* Allocate memory for the new string and save
it... */
+ strsize = (strlen(key) < 127 ? strlen(key) :
126) + 1;
+ cf->key[i] = (char*)malloc(strsize *
sizeof(char));
+ sprintf(cf->key[i], "%s", key);
+
+ strsize = (strlen(key) < 127 ? strlen(value) :
126) + 1;
+ cf->value[i] = (char*)malloc(strsize *
sizeof(char));
+ sprintf(cf->value[i], "%s", value);
+ break;
+ }
+ }
+ else if (cf->lastkey < MAXKEYS)
+ {
+ strsize = (strlen(key) < 127 ? strlen(key) : 126) + 1;
+ cf->key[cf->lastkey] = (char*)malloc(strsize * sizeof(char));
+ sprintf(cf->key[cf->lastkey], "%s", key);
+
+ strsize = (strlen(key) < 127 ? strlen(value) : 126) + 1;
+ cf->value[cf->lastkey] = (char*)malloc(strsize * sizeof(char));
+ sprintf(cf->value[cf->lastkey], "%s", value);
+
+ (cf->lastkey)++;
+ }
+ else
+ result = -1;
+ return result;
+}
+
+/* Frees all memory allocated by read_config_file() */
+void cfg_free_config_file_struct(ConfigFile *cf)
+{
+ int i;
+ for (i = 0; i < cf->lastkey; i++)
+ {
+ free(cf->key[i]);
+ free(cf->value[i]);
+ }
+ cf->lastkey = -1;
+}
+
+/* Loads a config file from disk */
+int cfg_read_config_file(ConfigFile *cf, char *filename)
+{
+ FILE *file;
+ char ch;
+ int bufcnt;
+ char key_buffer[128] = "", value_buffer[128] = "";
+
+ /* parse config file and read keys+key values */
+ file = fopen(filename, "r");
+ if (file)
+ {
+ while(!feof(file))
+ {
+ ch = fgetc(file);
+ /* Skip blanks... */
+ if (ch == ' ' || ch == '\t')
+ while (ch == ' ' || ch == '\t') ch =
fgetc(file);
+ /* ...and comments (#)... */
+ if (ch == '#')
+ while (ch != '\n' && ch != '\r') ch =
fgetc(file);
+
+ bufcnt = 0;
+ /* Read key name: */
+ while (ch != ' ' && ch != '\t' && ch != '\n' && ch !=
'\r' &&
+ ch != '=' && !feof(file) && bufcnt < 126)
+ {
+ key_buffer[bufcnt] = ch;
+ bufcnt++;
+ ch = fgetc(file);
+ }
+ key_buffer[bufcnt] = '\0';
+
+ while (ch != '=' && !feof(file))
+ {
+ ch = fgetc(file);
+ }
+ ch = fgetc(file);
+
+ /* Skip blanks... */
+ if (ch == ' ' || ch == '\t')
+ while (ch == ' ' || ch == '\t') ch =
fgetc(file);
+
+ /* Read key value: */
+ bufcnt = 0;
+ while (ch != '\n' && ch != '\r' && !feof(file) &&
+ !feof(file) && bufcnt < 126)
+ {
+ value_buffer[bufcnt] = ch;
+ bufcnt++;
+ ch = fgetc(file);
+ }
+ value_buffer[bufcnt] = '\0';
+
+ if (strlen(key_buffer) > 0)
+ cfg_add_key(cf, key_buffer, value_buffer);
+ }
+ fclose(file);
+ }
+ else
+ {
+ printf("config: Cannot open config file!\n");
+ return -2;
+ }
+ return 0;
+}
+
+/* Saves the configuration to file */
+int cfg_write_config_file(ConfigFile *cf, char *filename)
+{
+ FILE *file;
+ int i = 0, result = 0;
+ char buffer[128];
+
+ file = fopen(filename, "w");
+ if (file != NULL)
+ {
+ while (i < cf->lastkey)
+ {
+ sprintf(buffer, "%s=%s\n", cf->key[i], cf->value[i]);
+ fwrite(buffer, strlen(buffer) * sizeof(char), 1, file);
+ i++;
+ }
+ fclose(file);
+ }
+ else
+ {
+ printf("config: failed opening %s\n", filename);
+ result = -1;
+ }
+ return result;
+}
+
+/* Returns the value (as string) of "key" */
+char *cfg_get_key_value(ConfigFile cf, char *key)
+{
+ char *result = NULL;
+ int i;
+
+ for (i = 0; i < cf.lastkey; i++)
+ if (strncmp(key, cf.key[i], 127) == 0)
+ {
+ result = cf.value[i];
+ break;
+ }
+ return result;
+}
+
+int cfg_is_key_available(ConfigFile cf, char *key)
+{
+ int result = FALSE;
+ int i;
+ for (i = 0; i < cf.lastkey; i++)
+ if (strncmp(key, cf.key[i], 127) == 0)
+ {
+ result = TRUE;
+ break;
+ }
+ return result;
+}
diff --git a/src/wejpconfig.h b/src/wejpconfig.h
new file mode 100644
index 0000000..403731c
--- /dev/null
+++ b/src/wejpconfig.h
@@ -0,0 +1,46 @@
+/*
+ * Wejp's Config File Parser
+ *
+ * File: wejpconfig.h
+ *
+ * Copyright (c) 2003-2004 Johannes Heimansberg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#ifndef TRUE
+#define TRUE 1
+#define FALSE 0
+#endif
+#define MAXKEYS 128
+
+typedef struct
+{
+ char *key[MAXKEYS];
+ char *value[MAXKEYS];
+ int lastkey;
+} ConfigFile;
+#endif
+
+void cfg_init_config_file_struct(ConfigFile *cf);
+int cfg_add_key(ConfigFile *cf, char *key, char *value);
+void cfg_free_config_file_struct(ConfigFile *cf);
+int cfg_read_config_file(ConfigFile *cf, char *filename);
+int cfg_write_config_file(ConfigFile *cf, char *filename);
+char *cfg_get_key_value(ConfigFile cf, char *key);
+int cfg_check_config_file(char *filename);
+char *cfg_get_path_to_config_file(char *filename);
+int cfg_is_key_available(ConfigFile cf, char *key);
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