fix a typo that was breaking the export

[project/uci.git] / file.c

diff --git a/file.c b/file.c
index 6eaa5ec..8ab40d9 100644 (file)
--- a/file.c
+++ b/file.c
@@ -19,6 +19,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <stdbool.h>
+#include <unistd.h>
 #include <fcntl.h>
 #include <stdio.h>
 #include <ctype.h>
@@ -410,7 +411,7 @@ static void uci_parse_line(struct uci_context *ctx)
 }
 
 /* max number of characters that escaping adds to the string */
-#define UCI_QUOTE_ESCAPE       "'\\'"
+#define UCI_QUOTE_ESCAPE       "'\\''"
 
 /*
  * escape an uci string for export
@@ -454,7 +455,7 @@ static char *uci_escape(struct uci_context *ctx, char *str)
 /*
  * 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;
@@ -473,7 +474,7 @@ static void uci_export_package(struct uci_package *p, FILE *stream)
        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;
 
@@ -481,12 +482,12 @@ int uci_export(struct uci_context *ctx, FILE *stream, struct uci_package *packag
        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;
@@ -567,7 +568,9 @@ int uci_load(struct uci_context *ctx, const char *name, struct uci_package **pac
        if (fd <= 0)
                UCI_THROW(ctx, UCI_ERR_IO);
 
-       flock(fd, LOCK_SH);
+       if (flock(fd, LOCK_SH) < 0)
+               UCI_THROW(ctx, UCI_ERR_IO);
+
        file = fdopen(fd, "r");
        if (!file)
                UCI_THROW(ctx, UCI_ERR_IO);
@@ -588,6 +591,46 @@ done:
        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'