Added config file support.

1 files changed, 110 insertions, 0 deletions

diff --git a/src/config.c b/src/config.c
new file mode 100644
index 0000000..65cc70c
--- /dev/null
+++ b/src/config.c
@@ -0,0 +1,110 @@
+
+#include "config.h"
+
+#include "p11-tests.h"
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static char* config_data = NULL;
+
+static char*
+trim(char* data)
+{
+	char *t;
+	while(*data && isspace(*data))
+		++data;
+
+	t = data + strlen(data);
+	while(t > data && isspace(*(t - 1)))
+	{
+		t--;
+		*t = 0;
+	}
+
+	return data;
+}
+
+void
+p11t_config_parse(const char* filename)
+{
+	char* name = NULL;
+	char* value = NULL;
+	char* next;
+	FILE* f = NULL;
+	long len;
+	char* p;
+	char* t;
+
+	f = fopen(filename, "r");
+	if(f == NULL)
+		p11t_msg_exit(1, "couldn't open config file: %s", filename);
+
+	/* Figure out size */
+	if(fseek(f, 0, SEEK_END) == -1 || (len = ftell(f)) == -1 || fseek(f, 0, SEEK_SET) == -1)
+		p11t_msg_exit(1,  "couldn't seek config file: %s", filename);
+
+	assert(!config_data);
+	config_data = malloc(len + 2);
+	if(!config_data)
+		p11t_msg_exit(1, "out of memory");
+
+	/* And read in one block */
+	if(fread(config_data, 1, len, f) != len)
+		p11t_msg_exit(1, "couldn't read config file: %s", filename);
+
+	fclose(f);
+
+	/* Null terminate the data */
+	config_data[len] = '\n';
+	config_data[len + 1] = 0;
+
+	next = config_data;
+
+	/* Go through lines and process them */
+	while((t = strchr(next, '\n')) != NULL)
+	{
+		*t = 0;
+		p = next; /* Do this before cleaning below */
+		next = t + 1;
+
+		t = trim(p);
+
+		name = NULL;
+		value = NULL;
+
+		/* Empty lines / comments at start / comments without continuation */
+		if(!*t || *p == '#')
+			continue;
+
+		/* Look for the break between name = value on the same line */
+		t = p + strcspn(p, ":=");
+		if(!*t)
+		{
+			fprintf(stderr, "p11-test: invalid config line: %s", p);
+			exit(1);
+		}
+
+		/* Null terminate and split value part */
+		*t = 0;
+		t++;
+
+		name = trim(p);
+		value = t;
+
+		if(name && value)
+		{
+			p11t_module_config(name, value);
+			p11t_session_config(name, value);
+		}
+	}
+}
+
+void
+p11t_config_cleanup(void)
+{
+	free(config_data);
+	config_data = NULL;
+}