Finish config reader

1 files changed, 58 insertions, 25 deletions

diff --git a/src/config.c b/src/config.c
index 55dd133..82d6231 100644
--- a/src/config.c
+++ b/src/config.c
@@ -6,14 +6,15 @@
 
 #include "any_log.h"
 #include "config.h"
+#include "util.h"
 
 #define ANY_INI_IMPLEMENT
 #include "any_ini.h"
 
 typedef enum {
     CONFIG_STRING,
-    CONFIG_INT_ANY,
-    CONFIG_INT_POSITIVE,
+    CONFIG_INT,
+    CONFIG_UINT,
     CONFIG_DOUBLE,
 } config_type_t;
 
@@ -24,10 +25,10 @@ typedef struct {
 } config_entry_t;
 
 static const config_entry_t config_entries[] = {
-    { "width",   CONFIG_INT_POSITIVE, offsetof(config_t, width) },
-    { "height",  CONFIG_INT_POSITIVE, offsetof(config_t, height) },
-    { "font",    CONFIG_STRING,       offsetof(config_t, font) },
-    { "monitor", CONFIG_STRING,       offsetof(config_t, monitor) },
+    { "width",   CONFIG_UINT,   offsetof(config_t, width) },
+    { "height",  CONFIG_UINT,   offsetof(config_t, height) },
+    { "font",    CONFIG_STRING, offsetof(config_t, font) },
+    { "monitor", CONFIG_STRING, offsetof(config_t, monitor) },
 };
 
 static bool config_read_string(const char *value, char **result)
@@ -41,9 +42,8 @@ static bool config_read_string(const char *value, char **result)
         end--;
     }
 
-    *result = malloc(end - start + 1);
-    memcpy(*result, value + start, end - start);
-    *result[end - start] = '\0';
+    free(*result);
+    *result = strslice(value, start, end);
     return true;
 }
 
@@ -54,11 +54,23 @@ static bool config_read_int(const char *value, int *result)
     *result = n;
 
     if (n > INT_MAX || n < INT_MIN)
-        log_debug("Integer is too big");
+        log_debug("Integer %ld is out of range", n);
 
     return *end == '\0' && n != LONG_MIN && n != LONG_MAX;
 }
 
+static bool config_read_uint(const char *value, unsigned int *result)
+{
+    char *end;
+    unsigned long n = strtoul(value, &end, 0);
+    *result = n;
+
+    if (n > UINT_MAX)
+        log_debug("Integer %lu is out of range", n);
+
+    return *end == '\0' && n != ULONG_MAX;
+}
+
 static bool config_read_double(const char *value, double *result)
 {
     char *end;
@@ -93,23 +105,32 @@ static bool config_entry(config_t *config, int line, const char *section, const
             void *result = (uint8_t *)config + config_entries[i].offset;
             switch (config_entries[i].type) {
                 case CONFIG_STRING:
-                    if (config_read_string(value, (char **)result))
+                    // NOTE: The previous string is freed by config_read_string
+                    if (config_read_string(value, (char **)result)) {
+                        log_debug("Config '%s' set to '%s'", key, *(char **)result);
                         return true;
+                    }
                     break;
 
-                case CONFIG_INT_ANY:
-                    if (config_read_int(value, (int *)result))
+                case CONFIG_INT:
+                    if (config_read_int(value, (int *)result)) {
+                        log_debug("Config '%s' set to '%d'", key, *(int *)result);
                         return true;
+                    }
                     break;
 
-                case CONFIG_INT_POSITIVE:
-                    if (config_read_int(value, (int *)result) && *(int *)result >= 0)
+                case CONFIG_UINT:
+                    if (config_read_uint(value, (unsigned int *)result)) {
+                        log_debug("Config '%s' set to '%u'", key, *(unsigned int *)result);
                         return true;
+                    }
                     break;
 
                 case CONFIG_DOUBLE:
-                    if (config_read_double(value, (double *)result))
+                    if (config_read_double(value, (double *)result)) {
+                        log_debug("Config '%s' set to '%lf'", key, *(double *)result);
                         return true;
+                    }
                     break;
 
                 default:
@@ -136,18 +157,24 @@ static bool config_entry(config_t *config, int line, const char *section, const
     return true;
 }
 
-static const config_t config_default = {
-    .font = "monospace 10",
-    .monitor = NULL,
-    .height = 50,
-    .width = 100,
-};
-
-void config_init(config_t *config, FILE *file)
+void config_init(config_t *config)
 {
+    const config_t config_default = {
+        .font = "monospace 10",
+        .monitor = NULL,
+        .height = 50,
+        .width = 100,
+    };
+
     memcpy(config, &config_default, sizeof(config_t));
-    log_debug("Copied default config");
 
+    // NOTE: Strings must be copied
+    config->font = strcopy(config_default.font);
+    config->monitor = strcopy(config_default.monitor);
+}
+
+void config_read(config_t *config, FILE *file)
+{
     any_ini_stream_t ini;
     any_ini_file_init(&ini, file);
 
@@ -183,3 +210,9 @@ void config_init(config_t *config, FILE *file)
     if (errors > 0)
         log_panic("Config file contained %d errors", errors);
 }
+
+void config_free(config_t *config)
+{
+    free(config->font);
+    free(config->monitor);
+}