X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fuci.git;a=blobdiff_plain;f=file.c;h=8e6052c70c168eab23be093bde4174c91d1c3076;hp=ffa3afa7c1d74ec7d9b1ac2cc0cb12eb46e97bd6;hb=950437eecd6048dd29eb3e11f4343372b2ddce60;hpb=b342283d2dda28083322e99ffae874ba92839c74

diff --git a/file.c b/file.c
index ffa3afa..8e6052c 100644
--- a/file.c
+++ b/file.c
@@ -33,7 +33,6 @@
 #include "uci_internal.h"
 
 #define LINEBUF	32
-#define LINEBUF_MAX	4096
 
 /*
  * Fetch a new line from the input stream and resize buffer if necessary
@@ -48,8 +47,8 @@ __private void uci_getln(struct uci_context *ctx, int offset)
 		pctx->buf = uci_malloc(ctx, LINEBUF);
 		pctx->bufsz = LINEBUF;
 	}
-	/* `offset' may off by one */
-	if (offset >= pctx->bufsz) {
+	/* It takes 2 slots for fgets to read 1 char. */
+	if (offset >= pctx->bufsz - 1) {
 		pctx->bufsz *= 2;
 		pctx->buf = uci_realloc(ctx, pctx->buf, pctx->bufsz);
 	}
@@ -69,11 +68,10 @@ __private void uci_getln(struct uci_context *ctx, int offset)
 			return;
 		}
 
-		if (pctx->bufsz > LINEBUF_MAX/2)
-			uci_parse_error(ctx, "line too long");
-
 		pctx->bufsz *= 2;
 		pctx->buf = uci_realloc(ctx, pctx->buf, pctx->bufsz);
+		if (!pctx->buf)
+			UCI_THROW(ctx, UCI_ERR_MEM);
 	} while (1);
 }
 
@@ -157,7 +155,6 @@ static void parse_double_quote(struct uci_context *ctx, int *target)
 			break;
 		}
 	}
-	uci_parse_error(ctx, "unterminated \"");
 }
 
 /*
@@ -180,14 +177,13 @@ static void parse_single_quote(struct uci_context *ctx, int *target)
 			/* Multi-line str value */
 			uci_getln(ctx, pctx->pos);
 			if (!pctx_cur_char(pctx))
-				uci_parse_error(ctx, "EOF with unterminated \"");
+				uci_parse_error(ctx, "EOF with unterminated '");
 
 			break;
 		default:
 			addc(ctx, target, &pctx->pos);
 		}
 	}
-	uci_parse_error(ctx, "unterminated '");
 }
 
 /*
@@ -239,14 +235,14 @@ done:
 /*
  * extract the next argument from the command line
  */
-static char *next_arg(struct uci_context *ctx, bool required, bool name)
+static int next_arg(struct uci_context *ctx, bool required, bool name, bool package)
 {
 	struct uci_parse_context *pctx = ctx->pctx;
 	int val, ptr;
 
 	skip_whitespace(ctx);
 	val = ptr = pctx_pos(pctx);
-	if(pctx_cur_char(pctx) == ';') {
+	if (pctx_cur_char(pctx) == ';') {
 		pctx_cur_char(pctx) = 0;
 		pctx->pos += 1;
 	} else {
@@ -258,15 +254,17 @@ static char *next_arg(struct uci_context *ctx, bool required, bool name)
 		goto done;
 	}
 
-	if (name && !uci_validate_name(pctx_str(pctx, val)))
+	if (name && !uci_validate_str(pctx_str(pctx, val), name, package))
 		uci_parse_error(ctx, "invalid character in name field");
 
 done:
-	return pctx_str(pctx, val);
+	return val;
 }
 
 int uci_parse_argument(struct uci_context *ctx, FILE *stream, char **str, char **result)
 {
+	int ofs_result;
+
 	UCI_HANDLE_ERR(ctx);
 	UCI_ASSERT(ctx, str != NULL);
 	UCI_ASSERT(ctx, result != NULL);
@@ -278,15 +276,14 @@ int uci_parse_argument(struct uci_context *ctx, FILE *stream, char **str, char *
 		uci_alloc_parse_context(ctx);
 
 	ctx->pctx->file = stream;
-
 	if (!*str) {
+		ctx->pctx->pos = 0;
 		uci_getln(ctx, 0);
-		*str = ctx->pctx->buf;
-	} else {
-		UCI_ASSERT(ctx, ctx->pctx->pos == *str - ctx->pctx->buf);
 	}
 
-	*result = next_arg(ctx, false, false);
+	ofs_result = next_arg(ctx, false, false, false);
+	*result = pctx_str(ctx->pctx, ofs_result);
+	*str = pctx_cur_str(ctx->pctx);
 
 	return 0;
 }
@@ -335,9 +332,11 @@ fill_package:
 static void assert_eol(struct uci_context *ctx)
 {
 	char *tmp;
+	int ofs_tmp;
 
 	skip_whitespace(ctx);
-	tmp = next_arg(ctx, false, false);
+	ofs_tmp = next_arg(ctx, false, false, false);
+	tmp = pctx_str(ctx->pctx, ofs_tmp);
 	if (*tmp && (ctx->flags & UCI_FLAG_STRICT))
 		uci_parse_error(ctx, "too many arguments");
 }
@@ -383,12 +382,14 @@ static void uci_switch_config(struct uci_context *ctx)
 static void uci_parse_package(struct uci_context *ctx, bool single)
 {
 	struct uci_parse_context *pctx = ctx->pctx;
-	char *name = NULL;
+	int ofs_name;
+	char *name;
 
 	/* command string null-terminated by strtok */
 	pctx->pos += strlen(pctx_cur_str(pctx)) + 1;
 
-	name = next_arg(ctx, true, true);
+	ofs_name = next_arg(ctx, true, true, true);
+	name = pctx_str(pctx, ofs_name);
 	assert_eol(ctx);
 	if (single)
 		return;
@@ -405,8 +406,9 @@ static void uci_parse_config(struct uci_context *ctx)
 	struct uci_parse_context *pctx = ctx->pctx;
 	struct uci_element *e;
 	struct uci_ptr ptr;
-	char *name = NULL;
-	char *type = NULL;
+	int ofs_name, ofs_type;
+	char *name;
+	char *type;
 
 	uci_fixup_section(ctx, ctx->pctx->section);
 	if (!ctx->pctx->package) {
@@ -419,10 +421,14 @@ static void uci_parse_config(struct uci_context *ctx)
 	/* command string null-terminated by strtok */
 	pctx->pos += strlen(pctx_cur_str(pctx)) + 1;
 
-	type = next_arg(ctx, true, false);
+	ofs_type = next_arg(ctx, true, false, false);
+	type = pctx_str(pctx, ofs_type);
 	if (!uci_validate_type(type))
 		uci_parse_error(ctx, "invalid character in type field");
-	name = next_arg(ctx, false, true);
+
+	ofs_name = next_arg(ctx, false, true, false);
+	type = pctx_str(pctx, ofs_type);
+	name = pctx_str(pctx, ofs_name);
 	assert_eol(ctx);
 
 	if (!name || !name[0]) {
@@ -450,6 +456,7 @@ static void uci_parse_option(struct uci_context *ctx, bool list)
 	struct uci_parse_context *pctx = ctx->pctx;
 	struct uci_element *e;
 	struct uci_ptr ptr;
+	int ofs_name, ofs_value;
 	char *name = NULL;
 	char *value = NULL;
 
@@ -459,8 +466,10 @@ static void uci_parse_option(struct uci_context *ctx, bool list)
 	/* command string null-terminated by strtok */
 	pctx->pos += strlen(pctx_cur_str(pctx)) + 1;
 
-	name = next_arg(ctx, true, true);
-	value = next_arg(ctx, false, false);
+	ofs_name = next_arg(ctx, true, true, false);
+	ofs_value = next_arg(ctx, false, false, false);
+	name = pctx_str(pctx, ofs_name);
+	value = pctx_str(pctx, ofs_value);
 	assert_eol(ctx);
 
 	uci_fill_ptr(ctx, &ptr, &pctx->section->e);
@@ -726,17 +735,6 @@ static void uci_file_commit(struct uci_context *ctx, struct uci_package **packag
 	if ((asprintf(&filename, "%s/.%s.uci-XXXXXX", ctx->confdir, p->e.name) < 0) || !filename)
 		UCI_THROW(ctx, UCI_ERR_MEM);
 
-	if (!mktemp(filename))
-		*filename = 0;
-
-	if (!*filename) {
-		free(filename);
-		UCI_THROW(ctx, UCI_ERR_IO);
-	}
-
-	if ((stat(filename, &statbuf) == 0) && ((statbuf.st_mode & S_IFMT) != S_IFREG))
-		UCI_THROW(ctx, UCI_ERR_IO);
-
 	/* open the config file for writing now, so that it is locked */
 	f1 = uci_open_stream(ctx, p->path, NULL, SEEK_SET, true, true);
 
@@ -771,6 +769,17 @@ static void uci_file_commit(struct uci_context *ctx, struct uci_package **packag
 			goto done;
 	}
 
+	if (!mktemp(filename))
+		*filename = 0;
+
+	if (!*filename) {
+		free(filename);
+		UCI_THROW(ctx, UCI_ERR_IO);
+	}
+
+	if ((stat(filename, &statbuf) == 0) && ((statbuf.st_mode & S_IFMT) != S_IFREG))
+		UCI_THROW(ctx, UCI_ERR_IO);
+
 	f2 = uci_open_stream(ctx, filename, p->path, SEEK_SET, true, true);
 	uci_export(ctx, f2, p, false);
 
@@ -791,7 +800,6 @@ done:
 		UCI_THROW(ctx, UCI_ERR_IO);
 	}
 	free(filename);
-	sync();
 	if (ctx->err)
 		UCI_THROW(ctx, ctx->err);
 }