X-Git-Url: http://git.tuebingen.mpg.de/?p=osl.git;a=blobdiff_plain;f=fsck.c;h=00f14f320597f3dc324041f57ae9cb4c3f044a61;hp=29c4e2c7dc9d72d940dbb7c4298f24d84f3dcfc8;hb=2dba3a38dcfe721842404f01e9b2adb59c302604;hpb=c1a4bb030717f2d2d209ccd8ab898ab66fa16869

diff --git a/fsck.c b/fsck.c
index 29c4e2c..00f14f3 100644
--- a/fsck.c
+++ b/fsck.c
@@ -14,7 +14,6 @@
 
 #include "log.h"
 #include "osl.h"
-#include "error.h"
 #include "util.h"
 #include "osl_core.h"
 #include "fsck.cmdline.h"
@@ -39,8 +38,12 @@ static struct fsck_args_info conf;
 #define FSCK_ERRORS \
 	FSCK_ERROR(RANGE_VIOLATION, "range violation detected, very bad"), \
 	FSCK_ERROR(NOT_A_REGULAR_FILE, "not a regular file"), \
-	FSCK_ERROR(SYNTAX, "fsck syntax error"),
+	FSCK_ERROR(SYNTAX, "fsck syntax error"), \
+	FSCK_ERROR(ACCESS, "permission denied"), \
+	FSCK_ERROR(CHDIR, "could not change directory"), \
+	FSCK_ERROR(OPENDIR, "could not open directory"),
 
+#define FSCK_ERROR_BIT 29
 #define FSCK_ERROR(num, txt) E_FSCK_ ## num
 enum {
 	FSCK_DUMMY = (1 << FSCK_ERROR_BIT) - 1,
@@ -118,8 +121,8 @@ static int _write_all(int fd, const char *buf, size_t len)
 	return write_all(fd, buf, &len);
 }
 
-/**
- * Paraslash's version of malloc().
+/*
+ * Wrapper for malloc().
  *
  * \param size The desired new size.
  *
@@ -144,7 +147,7 @@ __must_check __malloc static void *fsck_malloc(size_t size)
 }
 
 /**
- * Paraslash's version of calloc().
+ * Allocate memory and fill with zeros.
  *
  * \param size The desired new size.
  *
@@ -217,9 +220,9 @@ static int uint32_compare(const struct osl_object *obj1, const struct osl_object
  */
 static inline int __fchdir(int fd)
 {
-	if (fchdir(fd) < 0)
-		return -ERRNO_TO_ERROR(errno);
-	return 1;
+	if (fchdir(fd) >= 0)
+		return 1;
+	return errno == EACCES? -E_FSCK_ACCESS : -E_FSCK_CHDIR;
 }
 
 /**
@@ -233,7 +236,7 @@ _static_inline_ int __chdir(const char *path)
 {
 	if (chdir(path) >= 0)
 		return 1;
-	return -ERRNO_TO_ERROR(errno);
+	return errno == EACCES? -E_FSCK_ACCESS : -E_FSCK_CHDIR;
 }
 
 /**
@@ -276,7 +279,7 @@ static int fsck_opendir(const char *dirname, DIR **dir, int *cwd)
 	*dir = opendir(".");
 	if (*dir)
 		return 1;
-	ret = -ERRNO_TO_ERROR(errno);
+	ret = errno == EACCES? -E_FSCK_ACCESS : -E_FSCK_OPENDIR;
 /* Ignore return value of fchdir() and close(). We're busted anyway. */
 	if (cwd)
 		fchdir(*cwd);
@@ -310,7 +313,7 @@ static int for_each_file_in_dir(const char *dirname,
 	int cwd_fd, ret2, ret = fsck_opendir(dirname, &dir, &cwd_fd);
 
 	if (ret < 0)
-		return ret == -ERRNO_TO_ERROR(EACCES)? 1 : ret;
+		return ret == -E_FSCK_ACCESS? 1 : ret;
 	/* scan cwd recursively */
 	while ((entry = readdir(dir))) {
 		mode_t m;
@@ -407,13 +410,8 @@ static int check_index_ranges(struct osl_table *t)
 				continue;
 			ret = check_range(t, i, j);
 			if (ret < 0) {
-				if (ret != -E_OSL_INVALID_OBJECT &&
-						ret != -E_FSCK_RANGE_VIOLATION)
+				if (ret != -E_FSCK_RANGE_VIOLATION)
 					goto err;
-				if (ret == -E_OSL_INVALID_OBJECT) {
-					CRIT_LOG("row %d, col %d maps to an "
-						"invalid object\n", i, j);
-				}
 				ret = mark_row_invalid(t, i);
 				if (ret < 0)
 					goto err;
@@ -517,14 +515,9 @@ static int check_for_invalid_objects(struct osl_table *t, uint32_t **lost_bytes)
 		for (j = 0; j < t->num_rows; j++) {
 			struct osl_object obj;
 			ret = get_mapped_object(t, i, j, &obj);
-			if (ret >= 0) {
-				loss[i] -= obj.size + 1; /* add one for header byte */
-				continue;
-			}
-			if (ret != -E_OSL_INVALID_OBJECT)
+			if (ret < 0)
 				goto err;
-			CRIT_LOG("row %d, col %d points to an invalid "
-				"mapped object, bad\n", j, i);
+			loss[i] -= obj.size;
 		}
 	}
 	ret = 0;
@@ -754,7 +747,7 @@ static unsigned files_pruned;
 int prune_disk_storage_file(const char *path, void *private_data)
 {
 	HASH_TYPE hash[HASH_SIZE];
-	unsigned flags = *(unsigned *)private_data;
+	uint8_t flags = *(uint8_t *)private_data;
 	struct osl_object obj = {.data = hash, .size = HASH_SIZE};
 	struct osl_row *row;
 	int ret = -1;
@@ -811,8 +804,9 @@ static int prune_disk_storage_files(struct osl_table *t)
 	INFO_LOG("looking for unreferenced disk storage files\n");
 	FOR_EACH_DISK_STORAGE_COLUMN(i, t, cd) {
 		char *dirname = column_filename(t, i);
+		uint8_t flags = t->desc->flags;
 		ret = for_each_file_in_dir(dirname, prune_disk_storage_file,
-			(unsigned *)&t->desc->flags);
+			&flags);
 		free(dirname);
 	}
 	if (files_pruned)
@@ -1068,12 +1062,12 @@ static int dump_rows(char *dump_dir, struct osl_table *t)
 			current_dir = make_message("%s/rows_%u-%u", dump_dir, i, i + 999);
 			NOTICE_LOG("dumping rows %u - %u\n", i, i + 999);
 			ret = osl_mkdir(current_dir, 0777);
-			if (ret < 0 && !is_errno(-ret, EEXIST))
+			if (ret < 0 && ret != -E_OSL_DIR_EXISTS)
 				goto out;
 		}
 		row_dir = make_message("%s/row_%03u", current_dir, i);
 		ret = osl_mkdir(row_dir, 0777);
-		if (ret < 0 && !is_errno(-ret, EEXIST)) {
+		if (ret < 0 && ret != -E_OSL_DIR_EXISTS) {
 			free(row_dir);
 			goto out;
 		}
@@ -1097,11 +1091,11 @@ static int dump_table(char *dump_dir, struct osl_table_description *desc)
 	if (ret < 0)
 		goto out;
 	ret = osl_mkdir(dump_dir, 0777);
-	if (ret < 0 && !is_errno(-ret, EEXIST))
+	if (ret < 0 && ret != -E_OSL_DIR_EXISTS)
 		goto out;
 	table_dump_dir = make_message("%s/%s", dump_dir, desc->name);
 	ret = osl_mkdir(table_dump_dir, 0777);
-	if (ret < 0 && !is_errno(-ret, EEXIST))
+	if (ret < 0 && ret != -E_OSL_DIR_EXISTS)
 		goto out;
 	desc_file = make_message("%s/table_description.c", table_dump_dir);
 	ret = osl_open(desc_file, O_WRONLY | O_CREAT | O_EXCL, 0644);