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https://github.com/sheumann/hush.git
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fsck: stop using strtok
This commit is contained in:
Denis Vlasenko
parent
1abf91aa25
commit
e18a293a52
157
e2fsprogs/fsck.c
157
e2fsprogs/fsck.c
@ -45,6 +45,7 @@
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*/
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struct fs_info {
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struct fs_info *next;
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char *device;
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char *mountpt;
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char *type;
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@ -52,7 +53,6 @@ struct fs_info {
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int freq;
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int passno;
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int flags;
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struct fs_info *next;
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};
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#define FLAG_DONE 1
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@ -61,6 +61,7 @@ struct fs_info {
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* Structure to allow exit codes to be stored
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*/
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struct fsck_instance {
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struct fsck_instance *next;
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int pid;
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int flags;
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int exit_status;
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@ -69,7 +70,6 @@ struct fsck_instance {
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char *type;
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char *device;
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char *base_device; /* /dev/hda for /dev/hdaN etc */
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struct fsck_instance *next;
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};
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static const char *const ignored_types[] = {
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@ -104,6 +104,14 @@ static char **args;
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static int num_devices;
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static int num_args;
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static int verbose;
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#define FS_TYPE_FLAG_NORMAL 0
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#define FS_TYPE_FLAG_OPT 1
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#define FS_TYPE_FLAG_NEGOPT 2
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static char **fs_type_list;
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static uint8_t *fs_type_flag;
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static smallint fs_type_negated;
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static volatile smallint cancel_requested;
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static smallint doall;
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static smallint noexecute;
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@ -122,13 +130,6 @@ static struct fs_info *filesys_info;
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static struct fs_info *filesys_last;
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static struct fsck_instance *instance_list;
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#define FS_TYPE_FLAG_NORMAL 0
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#define FS_TYPE_FLAG_OPT 1
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#define FS_TYPE_FLAG_NEGOPT 2
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static char **fs_type_list;
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static uint8_t *fs_type_flag;
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static int fs_type_negated;
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/*
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* Return the "base device" given a particular device; this is used to
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* assure that we only fsck one partition on a particular drive at any
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@ -741,40 +742,91 @@ static void fsck_device(struct fs_info *fs, int interactive)
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}
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}
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/*
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* Returns TRUE if a partition on the same disk is already being
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* checked.
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*/
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static int device_already_active(char *device)
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{
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struct fsck_instance *inst;
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char *base;
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if (force_all_parallel)
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return 0;
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#ifdef BASE_MD
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/* Don't check a soft raid disk with any other disk */
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if (instance_list
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&& (!strncmp(instance_list->device, BASE_MD, sizeof(BASE_MD)-1)
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|| !strncmp(device, BASE_MD, sizeof(BASE_MD)-1))
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) {
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return 1;
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}
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#endif
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base = base_device(device);
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/*
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* If we don't know the base device, assume that the device is
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* already active if there are any fsck instances running.
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*/
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if (!base)
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return (instance_list != NULL);
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for (inst = instance_list; inst; inst = inst->next) {
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if (!inst->base_device || !strcmp(base, inst->base_device)) {
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free(base);
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return 1;
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}
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}
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free(base);
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return 0;
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}
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/*
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* This function returns true if a particular option appears in a
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* comma-delimited options list
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*/
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static int opt_in_list(char *opt, char *optlist)
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{
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char *list, *s;
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char *s;
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int len;
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if (!optlist)
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return 0;
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list = xstrdup(optlist);
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s = strtok(list, ",");
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while (s) {
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if (strcmp(s, opt) == 0) {
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free(list);
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return 1;
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}
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s = strtok(NULL, ",");
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len = strlen(opt);
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s = optlist - 1;
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while (1) {
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s = strstr(s + 1, opt);
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if (!s)
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return 0;
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/* neither "opt.." nor "xxx,opt.."? */
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if (s != optlist && s[-1] != ',')
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continue;
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/* neither "..opt" nor "..opt,xxx"? */
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if (s[len] != '\0' && s[len] != ',')
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continue;
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return 1;
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}
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free(list);
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return 0;
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}
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/* See if the filesystem matches the criteria given by the -t option */
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static int fs_match(struct fs_info *fs)
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{
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int n, ret = 0, checked_type = 0;
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int n, ret, checked_type;
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char *cp;
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if (!fs_type_list)
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return 1;
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for (n = 0; (cp = fs_type_list[n]); n++) {
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ret = 0;
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checked_type = 0;
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n = 0;
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while (1) {
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cp = fs_type_list[n];
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if (!cp)
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break;
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switch (fs_type_flag[n]) {
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case FS_TYPE_FLAG_NORMAL:
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checked_type++;
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@ -790,6 +842,7 @@ static int fs_match(struct fs_info *fs)
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return 0;
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break;
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}
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n++;
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}
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if (checked_type == 0)
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return 1;
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@ -836,55 +889,14 @@ static int ignore(struct fs_info *fs)
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return 0;
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}
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/*
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* Returns TRUE if a partition on the same disk is already being
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* checked.
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*/
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static int device_already_active(char *device)
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{
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struct fsck_instance *inst;
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char *base;
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if (force_all_parallel)
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return 0;
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#ifdef BASE_MD
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/* Don't check a soft raid disk with any other disk */
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if (instance_list
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&& (!strncmp(instance_list->device, BASE_MD, sizeof(BASE_MD)-1)
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|| !strncmp(device, BASE_MD, sizeof(BASE_MD)-1))
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) {
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return 1;
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}
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#endif
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base = base_device(device);
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/*
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* If we don't know the base device, assume that the device is
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* already active if there are any fsck instances running.
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*/
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if (!base)
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return (instance_list != NULL);
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for (inst = instance_list; inst; inst = inst->next) {
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if (!inst->base_device || !strcmp(base, inst->base_device)) {
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free(base);
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return 1;
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}
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}
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free(base);
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return 0;
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}
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/* Check all file systems, using the /etc/fstab table. */
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static int check_all(void)
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{
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struct fs_info *fs = NULL;
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struct fs_info *fs;
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int status = EXIT_OK;
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int not_done_yet = 1;
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int passno = 1;
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int pass_done;
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smallint not_done_yet;
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smallint pass_done;
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int passno;
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if (verbose)
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puts("Checking all filesystems");
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@ -926,6 +938,8 @@ static int check_all(void)
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if (LONE_CHAR(fs->mountpt, '/'))
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fs->flags |= FLAG_DONE;
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not_done_yet = 1;
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passno = 1;
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while (not_done_yet) {
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not_done_yet = 0;
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pass_done = 1;
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@ -941,7 +955,7 @@ static int check_all(void)
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* do it yet.
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*/
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if (fs->passno > passno) {
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not_done_yet++;
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not_done_yet = 1;
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continue;
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}
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/*
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@ -982,7 +996,7 @@ static int check_all(void)
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puts("----------------------------------");
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passno++;
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} else
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not_done_yet++;
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not_done_yet = 1;
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}
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kill_all_if_cancel_requested();
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status |= wait_many(FLAG_WAIT_ATLEAST_ONE);
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@ -1015,9 +1029,7 @@ static void compile_fs_type(char *fs_type)
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if (!fs_type)
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return;
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// list = xstrdup(fs_type);
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num = 0;
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// s = strtok(list, ",");
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s = fs_type;
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while (1) {
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char *comma;
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@ -1030,6 +1042,7 @@ static void compile_fs_type(char *fs_type)
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s++;
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negate = 1;
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}
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if (strcmp(s, "loop") == 0)
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/* loop is really short-hand for opts=loop */
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goto loop_special_case;
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@ -1050,9 +1063,7 @@ static void compile_fs_type(char *fs_type)
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if (!comma)
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break;
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s = comma + 1;
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// s = strtok(NULL, ",");
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}
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// free(list);
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}
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static void parse_args(int argc, char *argv[])
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