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-rw-r--r--config.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/config.c b/config.c
new file mode 100644
index 0000000..ca6b158
--- /dev/null
+++ b/config.c
@@ -0,0 +1,103 @@
+#include "config.h"
+
+// Check to see if a line is the configuration option specified by
+// checking to see if str starts with conf followed by a space, a tab,
+// or an equals sign.
+// Returns the length of the name of the requested option if found, or
+// zero if not.
+long int isconf(char *str, char *conf) {
+ char *ret;
+ char substr[MAXCHAR];
+ long int len = strlen(conf);
+
+ // Ensure the next character is an equals sign, a space, or a tab
+ if (str[len] != '=' && str[len] != ' ' && str[len] != ' ') {
+ return 0;
+ }
+
+ strncpy(substr, str, len);
+ substr[len] = '\0';
+
+
+ if (!(ret = strstr(substr, conf)) == 0) {
+ return len;
+ }
+
+ return 0;
+}
+
+// Extracts the value of a configuration option from a string. Expects
+// to receive the string and the number of characters long that the
+// configuration option name is.
+void getconf(char *str, long int start) {
+ long int len = strlen(str);
+ long int pos;
+ char conf[MAXCHAR];
+
+ for (long int i = start; i < len; i++) {
+ if (str[i] == '=' || str[i] == ' ' || str[i] == ' ') {
+ continue;
+ } else {
+ pos = i;
+ break;
+ }
+ }
+
+ strncpy(conf, str + pos, len - pos - 1); // Copy remainder to new string and lop off the newline
+ conf[len - pos - 1] = '\0'; // Null terminate
+
+ // Check for start and end quotes
+ if (conf[0] != '"' || conf[strlen(conf) - 1] != '"') {
+ printf("Error reading configuration option, not enclosed in double quotes!\n");
+ exit(1);
+ }
+
+ strncpy(str, conf + 1, strlen(conf) - 2); // Copy result back to original string without quotes
+ str[strlen(conf) - 2] = '\0'; // Null terminate
+}
+
+int readnames(char *nick, char *username, char *realname) {
+ FILE *fp;
+ char str[MAXCHAR];
+ char* filename = "blabouncer.conf";
+
+ // Set all strings to zero-length to begin
+ nick[0] = '\0';
+ username[0] = '\0';
+ realname[0] = '\0';
+
+ fp = fopen(filename, "r");
+
+ if (fp == NULL) {
+ printf("error: could not open configuration file '%s.'", filename);
+ return 1;
+ }
+ while (fgets(str, MAXCHAR, fp) != NULL) {
+ long int len;
+ if ((len = isconf(str, "nick"))) {
+ getconf(str, len);
+ strncpy(nick, str, strlen(str));
+ nick[strlen(str)] = '\0';
+ printf("Nick is: '%s', length '%ld'.\n", nick, strlen(nick));
+ } else if ((len = isconf(str, "username"))) {
+ getconf(str, len);
+ strncpy(username, str, strlen(str));
+ username[strlen(str)] = '\0';
+ printf("Username is: '%s', length '%ld'.\n", username, strlen(username));
+ } else if ((len = isconf(str, "realname"))) {
+ getconf(str, len);
+ strncpy(realname, str, strlen(str));
+ realname[strlen(str)] = '\0';
+ printf("Real name is: '%s', length '%ld'.\n", realname, strlen(realname));
+ }
+ }
+
+ // Ensure we have everything required
+ if (!strlen(nick) || !strlen(username) || !strlen(realname)) {
+ printf("Failed to read nick and/or username and/or real name from configuration file.\n");
+ exit(1);
+ }
+
+ fclose(fp);
+ return 1;
+}