aboutsummaryrefslogtreecommitdiff
path: root/util-linux
diff options
context:
space:
mode:
authorGravatar Rob Landley <rob@landley.net>2006-04-29 20:08:40 +0000
committerGravatar Rob Landley <rob@landley.net>2006-04-29 20:08:40 +0000
commit3ea66a805d4d10a66cf5b5422f44dca0bbdd0b18 (patch)
tree7c37a340965ffce8dea0666d3b6ee422fe896350 /util-linux
parent8a6254994ce56859f245120726f47bafa8281b2d (diff)
downloadbusybox-3ea66a805d4d10a66cf5b5422f44dca0bbdd0b18.tar.gz
busybox-3ea66a805d4d10a66cf5b5422f44dca0bbdd0b18.tar.bz2
Patches from Denis Vlasenko to rework "current_name" handling and remove
print_current_name().
Diffstat (limited to 'util-linux')
-rw-r--r--util-linux/fsck_minix.c221
1 files changed, 95 insertions, 126 deletions
diff --git a/util-linux/fsck_minix.c b/util-linux/fsck_minix.c
index b90ccc5e3..f764597e3 100644
--- a/util-linux/fsck_minix.c
+++ b/util-linux/fsck_minix.c
@@ -219,14 +219,6 @@ static int version2;
static struct termios termios;
static int termios_set;
-/* File-name data */
-enum { MAX_DEPTH = 32 };
-static int name_depth;
-// static char name_list[MAX_DEPTH][BUFSIZ + 1];
-static char **name_list;
-
-static char *inode_buffer;
-
#define Inode (((struct minix_inode *) inode_buffer)-1)
#define Inode2 (((struct minix2_inode *) inode_buffer)-1)
static char super_block_buffer[BLOCK_SIZE];
@@ -284,18 +276,55 @@ static void die(const char *str)
leave(8);
}
-/*
- * This simply goes through the file-name data and prints out the
- * current file.
- */
-static void print_current_name(void)
+/* File-name data */
+enum { MAX_DEPTH = 32 };
+static int name_depth;
+static char *current_name;
+static char *name_component[MAX_DEPTH+1];
+
+/* Wed Feb 9 15:17:06 MST 2000 */
+/* dynamically allocate name_list (instead of making it static) */
+static inline void alloc_current_name(void)
{
- int i = 0;
+ current_name = xmalloc(MAX_DEPTH * (BUFSIZ + 1));
+ current_name[0] = '/';
+ current_name[1] = '\0';
+ name_component[0] = &current_name[0];
+}
- while (i < name_depth)
- printf("/%.*s", namelen, name_list[i++]);
- if (i == 0)
- printf("/");
+#ifdef CONFIG_FEATURE_CLEAN_UP
+/* execute this atexit() to deallocate name_list[] */
+/* piptigger was here */
+static inline void free_current_name(void)
+{
+ free(current_name);
+}
+#endif
+
+static void push_filename(const char *name)
+{
+ // /dir/dir/dir/file
+ // ^ ^ ^
+ // [0] [1] [2] <-name_component[i]
+ if (name_depth < MAX_DEPTH) {
+ int len;
+ char *p = name_component[name_depth];
+ *p++ = '/';
+ len = sprintf(p, "%.*s", namelen, name);
+ name_component[name_depth + 1] = p + len;
+ }
+ name_depth++;
+}
+
+static void pop_filename(void) {
+ name_depth--;
+ if (name_depth < MAX_DEPTH) {
+ *name_component[name_depth] = '\0';
+ if (!name_depth) {
+ current_name[0] = '/';
+ current_name[1] = '\0';
+ }
+ }
}
static int ask(const char *string, int def)
@@ -391,16 +420,16 @@ static void check_mount(void)
*/
static int check_zone_nr2(uint32_t *nr, int *corrected)
{
+ const char *msg;
if (!*nr)
return 0;
if (*nr < FIRSTZONE)
- printf("Zone nr < FIRSTZONE in file `");
+ msg = "< FIRSTZONE";
else if (*nr >= ZONES)
- printf("Zone nr >= ZONES in file `");
+ msg = ">= ZONES";
else
return *nr;
- print_current_name();
- printf("'.");
+ printf("Zone nr %s in file '%s'.", msg, current_name);
if (ask("Remove block", 1)) {
*nr = 0;
*corrected = 1;
@@ -426,15 +455,12 @@ static void read_block(unsigned int nr, char *addr)
return;
}
if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET)) {
- printf("Read error: unable to seek to block in file '");
- print_current_name();
- printf("'\n");
+ printf("Read error: unable to seek to block in file '%s'\n",
+ current_name);
errors_uncorrected = 1;
memset(addr, 0, BLOCK_SIZE);
} else if (BLOCK_SIZE != read(IN, addr, BLOCK_SIZE)) {
- printf("Read error: bad block in file '");
- print_current_name();
- printf("'\n");
+ printf("Read error: bad block in file '%s'\n", current_name);
errors_uncorrected = 1;
memset(addr, 0, BLOCK_SIZE);
}
@@ -456,9 +482,7 @@ static void write_block(unsigned int nr, char *addr)
if (BLOCK_SIZE * nr != lseek(IN, BLOCK_SIZE * nr, SEEK_SET))
die("seek failed in write_block");
if (BLOCK_SIZE != write(IN, addr, BLOCK_SIZE)) {
- printf("Write error: bad block in file '");
- print_current_name();
- printf("'\n");
+ printf("Write error: bad block in file '%s'\n", current_name);
errors_uncorrected = 1;
}
}
@@ -621,9 +645,11 @@ static void read_superblock(void)
die("seek failed");
if (BLOCK_SIZE != read(IN, super_block_buffer, BLOCK_SIZE))
die("unable to read super block");
+ /* already initialized to:
namelen = 14;
dirsize = 16;
version2 = 0;
+ */
if (MAGIC == MINIX_SUPER_MAGIC) {
} else if (MAGIC == MINIX_SUPER_MAGIC2) {
namelen = 30;
@@ -694,9 +720,8 @@ static struct minix_inode *get_inode(unsigned int nr)
inode = Inode + nr;
if (!inode_count[nr]) {
if (!inode_in_use(nr)) {
- printf("Inode %d marked not used, but used for file '", nr);
- print_current_name();
- printf("'\n");
+ printf("Inode %d marked not used, but used for file "
+ "'%s'\n", nr, current_name);
if (repair) {
if (ask("Mark in use", 1))
mark_inode(nr);
@@ -717,8 +742,7 @@ static struct minix_inode *get_inode(unsigned int nr)
else if (S_ISSOCK(inode->i_mode));
else if (S_ISFIFO(inode->i_mode));
else {
- print_current_name();
- printf(" has mode %05o\n", inode->i_mode);
+ printf("%s has mode %05o\n", current_name, inode->i_mode);
}
} else
@@ -742,9 +766,8 @@ static struct minix2_inode *get_inode2(unsigned int nr)
inode = Inode2 + nr;
if (!inode_count[nr]) {
if (!inode_in_use(nr)) {
- printf("Inode %d marked not used, but used for file '", nr);
- print_current_name();
- printf("'\n");
+ printf("Inode %d marked not used, but used for file "
+ "'%s'\n", nr, current_name);
if (repair) {
if (ask("Mark in use", 1))
mark_inode(nr);
@@ -765,8 +788,7 @@ static struct minix2_inode *get_inode2(unsigned int nr)
else if (S_ISSOCK(inode->i_mode));
else if (S_ISFIFO(inode->i_mode));
else {
- print_current_name();
- printf(" has mode %05o\n", inode->i_mode);
+ printf("%s has mode %05o\n", current_name, inode->i_mode);
}
} else
links++;
@@ -807,9 +829,8 @@ static int add_zone(uint16_t *znr, int *corrected)
if (!block)
return 0;
if (zone_count[block]) {
- printf("Block has been used before. Now in file `");
- print_current_name();
- printf("'.");
+ printf("Block has been used before. Now in file '%s'.",
+ current_name);
if (ask("Clear", 1)) {
*znr = 0;
block = 0;
@@ -818,9 +839,8 @@ static int add_zone(uint16_t *znr, int *corrected)
}
}
if (!zone_in_use(block)) {
- printf("Block %d in file `", block);
- print_current_name();
- printf("' is marked not in use.");
+ printf("Block %d in file '%s' is marked not in use.",
+ block, current_name);
if (ask("Correct", 1))
mark_zone(block);
}
@@ -840,9 +860,8 @@ static int add_zone2(uint32_t *znr, int *corrected)
if (!block)
return 0;
if (zone_count[block]) {
- printf("Block has been used before. Now in file `");
- print_current_name();
- printf("'.");
+ printf("Block has been used before. Now in file '%s'.",
+ current_name);
if (ask("Clear", 1)) {
*znr = 0;
block = 0;
@@ -851,9 +870,8 @@ static int add_zone2(uint32_t *znr, int *corrected)
}
}
if (!zone_in_use(block)) {
- printf("Block %d in file `", block);
- print_current_name();
- printf("' is marked not in use.");
+ printf("Block %d in file '%s' is marked not in use.",
+ block, current_name);
if (ask("Correct", 1))
mark_zone(block);
}
@@ -998,54 +1016,43 @@ static void check_file(struct minix_inode *dir, unsigned int offset)
name = blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
- print_current_name();
- printf(" contains a bad inode number for file '");
- printf("%.*s'.", namelen, name);
+ printf("%s contains a bad inode number for file '%.*s'.",
+ current_name, namelen, name);
if (ask(" Remove", 1)) {
*(uint16_t *) (name - 2) = 0;
write_block(block, blk);
}
ino = 0;
}
- if (name_depth < MAX_DEPTH)
- strncpy(name_list[name_depth], name, namelen);
- name_depth++;
+ push_filename(name);
inode = get_inode(ino);
- name_depth--;
+ pop_filename();
if (!offset) {
if (!inode || strcmp(".", name)) {
- print_current_name();
- printf(": bad directory: '.' isn't first\n");
+ printf("%s: bad directory: '.' isn't first\n", current_name);
errors_uncorrected = 1;
} else
return;
}
if (offset == dirsize) {
if (!inode || strcmp("..", name)) {
- print_current_name();
- printf(": bad directory: '..' isn't second\n");
+ printf("%s: bad directory: '..' isn't second\n", current_name);
errors_uncorrected = 1;
} else
return;
}
if (!inode)
return;
- if (name_depth < MAX_DEPTH)
- strncpy(name_list[name_depth], name, namelen);
- name_depth++;
+ push_filename(name);
if (list) {
if (verbose)
printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks);
- print_current_name();
- if (S_ISDIR(inode->i_mode))
- printf(":\n");
- else
- printf("\n");
+ printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : "");
}
check_zones(ino);
if (inode && S_ISDIR(inode->i_mode))
recursive_check(ino);
- name_depth--;
+ pop_filename();
return;
}
@@ -1063,52 +1070,43 @@ static void check_file2(struct minix2_inode *dir, unsigned int offset)
name = blk + (offset % BLOCK_SIZE) + 2;
ino = *(uint16_t *) (name - 2);
if (ino > INODES) {
- print_current_name();
- printf(" contains a bad inode number for file '");
- printf("%.*s'.", namelen, name);
+ printf("%s contains a bad inode number for file '%.*s'.",
+ current_name, namelen, name);
if (ask(" Remove", 1)) {
*(uint16_t *) (name - 2) = 0;
write_block(block, blk);
}
ino = 0;
}
- if (name_depth < MAX_DEPTH)
- strncpy(name_list[name_depth], name, namelen);
- name_depth++;
+ push_filename(name);
inode = get_inode2(ino);
- name_depth--;
+ pop_filename();
if (!offset) {
if (!inode || strcmp(".", name)) {
- print_current_name();
- printf(": bad directory: '.' isn't first\n");
+ printf("%s: bad directory: '.' isn't first\n", current_name);
errors_uncorrected = 1;
} else
return;
}
if (offset == dirsize) {
if (!inode || strcmp("..", name)) {
- print_current_name();
- printf(": bad directory: '..' isn't second\n");
+ printf("%s: bad directory: '..' isn't second\n", current_name);
errors_uncorrected = 1;
} else
return;
}
if (!inode)
return;
- name_depth++;
+ push_filename(name);
if (list) {
if (verbose)
printf("%6d %07o %3d ", ino, inode->i_mode, inode->i_nlinks);
- print_current_name();
- if (S_ISDIR(inode->i_mode))
- printf(":\n");
- else
- printf("\n");
+ printf("%s%s\n", current_name, S_ISDIR(inode->i_mode) ? ":" : "");
}
check_zones2(ino);
if (inode && S_ISDIR(inode->i_mode))
recursive_check2(ino);
- name_depth--;
+ pop_filename();
return;
}
#endif
@@ -1122,8 +1120,7 @@ static void recursive_check(unsigned int ino)
if (!S_ISDIR(dir->i_mode))
die("internal error");
if (dir->i_size < 2 * dirsize) {
- print_current_name();
- printf(": bad directory: size<32");
+ printf("%s: bad directory: size<32", current_name);
errors_uncorrected = 1;
}
for (offset = 0; offset < dir->i_size; offset += dirsize)
@@ -1140,8 +1137,7 @@ static void recursive_check2(unsigned int ino)
if (!S_ISDIR(dir->i_mode))
die("internal error");
if (dir->i_size < 2 * dirsize) {
- print_current_name();
- printf(": bad directory: size < 32");
+ printf("%s: bad directory: size<32", current_name);
errors_uncorrected = 1;
}
for (offset = 0; offset < dir->i_size; offset += dirsize)
@@ -1281,43 +1277,16 @@ static void check2(void)
}
#endif
-/* Wed Feb 9 15:17:06 MST 2000 */
-/* dynamically allocate name_list (instead of making it static) */
-static void alloc_name_list(void)
-{
- int i;
-
- name_list = xmalloc(sizeof(char *) * MAX_DEPTH);
- for (i = 0; i < MAX_DEPTH; i++)
- name_list[i] = xmalloc(sizeof(char) * (BUFSIZ + 1));
-}
-
-#ifdef CONFIG_FEATURE_CLEAN_UP
-/* execute this atexit() to deallocate name_list[] */
-/* piptigger was here */
-static void free_name_list(void)
-{
- int i;
-
- if (name_list) {
- for (i = 0; i < MAX_DEPTH; i++) {
- free(name_list[i]);
- }
- free(name_list);
- }
-}
-#endif
-
int fsck_minix_main(int argc, char **argv)
{
struct termios tmp;
int retcode = 0;
- alloc_name_list();
+ alloc_current_name();
#ifdef CONFIG_FEATURE_CLEAN_UP
/* Don't bother to free memory. Exit does
* that automagically, so we can save a few bytes */
- atexit(free_name_list);
+ atexit(free_current_name);
#endif
if (INODE_SIZE * MINIX_INODES_PER_BLOCK != BLOCK_SIZE)
@@ -1443,8 +1412,8 @@ int fsck_minix_main(int argc, char **argv)
if (changed) {
write_tables();
printf("----------------------------\n"
- "FILE SYSTEM HAS BEEN CHANGED\n"
- "----------------------------\n");
+ "FILE SYSTEM HAS BEEN CHANGED\n"
+ "----------------------------\n");
sync();
} else if (repair)
write_super_block();