#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>
+#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <ctype.h>
/*
* export a single config package to a file stream
*/
-static void uci_export_package(struct uci_package *p, FILE *stream)
+static void uci_export_package(struct uci_package *p, FILE *stream, bool header)
{
struct uci_context *ctx = p->ctx;
struct uci_element *s, *o;
fprintf(stream, "\n");
}
-int uci_export(struct uci_context *ctx, FILE *stream, struct uci_package *package)
+int uci_export(struct uci_context *ctx, FILE *stream, struct uci_package *package, bool header)
{
struct uci_element *e;
UCI_ASSERT(ctx, stream != NULL);
if (package) {
- uci_export_package(package, stream);
+ uci_export_package(package, stream, header);
goto done;
}
uci_foreach_element(&ctx->root, e) {
- uci_export_package(uci_to_package(e), stream);
+ uci_export_package(uci_to_package(e), stream, header);
}
done:
return 0;
return ctx->errno;
}
+int uci_commit(struct uci_context *ctx, struct uci_package *p)
+{
+ FILE *f = NULL;
+ int fd = 0;
+ int err = UCI_ERR_IO;
+
+ UCI_HANDLE_ERR(ctx);
+ UCI_ASSERT(ctx, p != NULL);
+ UCI_ASSERT(ctx, p->path != NULL);
+
+ fd = open(p->path, O_RDWR);
+ if (fd < 0)
+ goto done;
+
+ if (flock(fd, LOCK_EX) < 0)
+ goto done;
+
+ ftruncate(fd, 0);
+ f = fdopen(fd, "w");
+ if (!f)
+ goto done;
+
+ UCI_TRAP_SAVE(ctx, done);
+ uci_export(ctx, f, p, false);
+ UCI_TRAP_RESTORE(ctx);
+
+done:
+ if (f)
+ fclose(f);
+ else if (fd > 0)
+ close(fd);
+
+ if (ctx->errno)
+ UCI_THROW(ctx, ctx->errno);
+ if (err)
+ UCI_THROW(ctx, UCI_ERR_IO);
+ return 0;
+}
+
+
/*
* This function returns the filename by returning the string
* after the last '/' character. By checking for a non-'\0'