Initial commit

config.c

@@ -0,0 +1,100 @@
+/*
+ * config.c
+ * Copyright (c) 2ndQuadrant, 2010
+ *
+ * Functions to parse the config file
+ */
+
+#include "repmgr.h"
+
+void
+parse_config(char *cluster_name, int *node, char *conninfo)
+{
+	char *s, buff[256];
+	FILE *fp = fopen (CONFIG_FILE, "r");
+
+	if (fp == NULL)
+    	return;
+
+	/* Read next line */
+	while ((s = fgets (buff, sizeof buff, fp)) != NULL)
+	{
+		char name[MAXLEN];
+		char value[MAXLEN];
+
+    	/* Skip blank lines and comments */
+    	if (buff[0] == '\n' || buff[0] == '#')
+    		continue;
+
+    	/* Parse name/value pair from line */
+		parse_line(buff, name, value);
+
+    	/* Copy into correct entry in parameters struct */
+    	if (strcmp(name, "cluster") == 0)
+    		*node = atoi(value);
+    	else if (strcmp(name, "node") == 0)
+    		*node = atoi(value);
+    	else if (strcmp(name, "conninfo") == 0)
+    		strncpy (conninfo, value, MAXLEN);
+    	else
+    		printf ("WARNING: %s/%s: Unknown name/value pair!\n", name, value);
+  	}
+
+  	/* Close file */
+  	fclose (fp);
+}
+
+char *
+trim (char *s)
+{
+  /* Initialize start, end pointers */
+  char *s1 = s, *s2 = &s[strlen (s) - 1];
+
+  /* Trim and delimit right side */
+  while ( (isspace (*s2)) && (s2 >= s1) )
+    s2--;
+  *(s2+1) = '\0';
+
+  /* Trim left side */
+  while ( (isspace (*s1)) && (s1 < s2) )
+    s1++;
+
+  /* Copy finished string */
+  strcpy (s, s1);
+  return s;
+}
+
+void
+parse_line(char *buff, char *name, char *value)
+{
+	int i;
+	int j;
+
+	/*
+	 * first we find the name of the parameter
+	 */
+	j = 0;
+	for (i = 0; i < MAXLEN; i++)
+	{
+		if (buff[i] != '=')
+			name[j++] = buff[i];
+		else
+			break;
+	}
+	name[j] = '\0';
+
+	i++;
+	/*
+	 * Now the value
+	 */ 
+	j = 0;
+	for ( ; i < MAXLEN; i++)
+		if (buff[i] == '\'')
+			continue;
+		else if (buff[i] != '\n')
+			value[j++] = buff[i];
+		else
+			break;
+	value[j] = '\0';
+    trim(value);
+}