Rework LuCI build system

[project/luci.git] / libs / luci-lib-nixio / axTLS / config / scripts / config / util.c

diff --git a/libs/luci-lib-nixio/axTLS/config/scripts/config/util.c b/libs/luci-lib-nixio/axTLS/config/scripts/config/util.c
new file mode 100644 (file)
index 0000000..8fc95a2
--- /dev/null
+++ b/libs/luci-lib-nixio/axTLS/config/scripts/config/util.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
+ * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <string.h>
+#include "lkc.h"
+
+/* file already present in list? If not add it */
+struct file *file_lookup(const char *name)
+{
+       struct file *file;
+
+       for (file = file_list; file; file = file->next) {
+               if (!strcmp(name, file->name))
+                       return file;
+       }
+
+       file = malloc(sizeof(*file));
+       memset(file, 0, sizeof(*file));
+       file->name = strdup(name);
+       file->next = file_list;
+       file_list = file;
+       return file;
+}
+
+/* write a dependency file as used by kbuild to track dependencies */
+int file_write_dep(const char *name)
+{
+       struct file *file;
+       FILE *out;
+
+       if (!name)
+               name = "config/.config.cmd";
+       out = fopen("config/.config.tmp", "w");
+       if (!out)
+               return 1;
+       fprintf(out, "deps_config := \\\n");
+       for (file = file_list; file; file = file->next) {
+               if (file->next)
+                       fprintf(out, "\t%s \\\n", file->name);
+               else
+                       fprintf(out, "\t%s\n", file->name);
+       }
+       fprintf(out, "\n.config include/config.h: $(deps_config)\n\n$(deps_config):\n");
+       fclose(out);
+       rename(".config.tmp", name);
+       return 0;
+}
+
+
+/* Allocate initial growable sting */
+struct gstr str_new(void)
+{
+       struct gstr gs;
+       gs.s = malloc(sizeof(char) * 64);
+       gs.len = 16;
+       strcpy(gs.s, "\0");
+       return gs;
+}
+
+/* Allocate and assign growable string */
+struct gstr str_assign(const char *s)
+{
+       struct gstr gs;
+       gs.s = strdup(s);
+       gs.len = strlen(s) + 1;
+       return gs;
+}
+
+/* Free storage for growable string */
+void str_free(struct gstr *gs)
+{
+       if (gs->s)
+               free(gs->s);
+       gs->s = NULL;
+       gs->len = 0;
+}
+
+/* Append to growable string */
+void str_append(struct gstr *gs, const char *s)
+{
+       size_t l = strlen(gs->s) + strlen(s) + 1;
+       if (l > gs->len) {
+               gs->s   = realloc(gs->s, l);
+               gs->len = l;
+       }
+       strcat(gs->s, s);
+}
+
+/* Append printf formatted string to growable string */
+void str_printf(struct gstr *gs, const char *fmt, ...)
+{
+       va_list ap;
+       char s[10000]; /* big enough... */
+       va_start(ap, fmt);
+       vsnprintf(s, sizeof(s), fmt, ap);
+       str_append(gs, s);
+       va_end(ap);
+}
+
+/* Retreive value of growable string */
+const char *str_get(struct gstr *gs)
+{
+       return gs->s;
+}
+