}
static int
-ListMountCmd(struct cmd_syndesc *as, void *arock)
+GetLastComponent(const char *data, char **outdir, char **outbase,
+ int *thru_symlink)
{
- afs_int32 code;
- struct ViceIoctl blob;
- struct cmd_item *ti;
char orig_name[1024]; /*Original name, may be modified */
char true_name[1024]; /*``True'' dirname (e.g., symlink target) */
- char parent_dir[1024]; /*Parent directory of true name */
- char *last_component; /*Last component of true name */
+ char *lastSlash;
struct stat statbuff; /*Buffer for status info */
int link_chars_read; /*Num chars read in readlink() */
- int thru_symlink; /*Did we get to a mount point via a symlink? */
- int error = 0;
+ char *dirname = NULL;
+ char *basename = NULL;
- for (ti = as->parms[0].items; ti; ti = ti->next) {
- /* once per file */
- thru_symlink = 0;
- sprintf(orig_name, "%s%s", (ti->data[0] == '/') ? "" : "./",
- ti->data);
+ if (thru_symlink)
+ *thru_symlink = 0;
+
+ snprintf(orig_name, sizeof(orig_name), "%s%s",
+ (data[0] == '/') ? "" : "./", data);
+
+ if (lstat(orig_name, &statbuff) < 0) {
+ /* if lstat fails, we should still try the pioctl, since it
+ * may work (for example, lstat will fail, but pioctl will
+ * work if the volume of offline (returning ENODEV). */
+ statbuff.st_mode = S_IFDIR; /* lie like pros */
+ }
- if (lstat(orig_name, &statbuff) < 0) {
- /* if lstat fails, we should still try the pioctl, since it
- * may work (for example, lstat will fail, but pioctl will
- * work if the volume of offline (returning ENODEV). */
- statbuff.st_mode = S_IFDIR; /* lie like pros */
+ /*
+ * The lstat succeeded. If the given file is a symlink, substitute
+ * the file name with the link name.
+ */
+ if ((statbuff.st_mode & S_IFMT) == S_IFLNK) {
+ if (thru_symlink)
+ *thru_symlink = 1;
+
+ /* Read name of resolved file */
+ link_chars_read = readlink(orig_name, true_name, 1024);
+ if (link_chars_read <= 0) {
+ fprintf(stderr,
+ "%s: Can't read target name for '%s' symbolic link!\n",
+ pn, orig_name);
+ goto out;
}
+ /* Add a trailing null to what was read, bump the length. */
+ true_name[link_chars_read++] = 0;
+
/*
- * The lstat succeeded. If the given file is a symlink, substitute
- * the file name with the link name.
+ * If the symlink is an absolute pathname, we're fine. Otherwise, we
+ * have to create a full pathname using the original name and the
+ * relative symlink name. Find the rightmost slash in the original
+ * name (we know there is one) and splice in the symlink value.
*/
- if ((statbuff.st_mode & S_IFMT) == S_IFLNK) {
- thru_symlink = 1;
- /*
- * Read name of resolved file.
- */
- link_chars_read = readlink(orig_name, true_name, 1024);
- if (link_chars_read <= 0) {
- fprintf(stderr,
- "%s: Can't read target name for '%s' symbolic link!\n",
- pn, orig_name);
- error = 1;
- continue;
- }
-
- /*
- * Add a trailing null to what was read, bump the length.
- */
- true_name[link_chars_read++] = 0;
-
- /*
- * If the symlink is an absolute pathname, we're fine. Otherwise, we
- * have to create a full pathname using the original name and the
- * relative symlink name. Find the rightmost slash in the original
- * name (we know there is one) and splice in the symlink value.
- */
- if (true_name[0] != '/') {
- last_component = (char *)strrchr(orig_name, '/');
- strcpy(++last_component, true_name);
- strcpy(true_name, orig_name);
- }
- } else
+ if (true_name[0] != '/') {
+ lastSlash = strrchr(orig_name, '/');
+ strcpy(++lastSlash, true_name);
strcpy(true_name, orig_name);
-
+ }
+ } else {
+ strcpy(true_name, orig_name);
+ }
+
+ /* Find rightmost slash, if any. */
+ lastSlash = strrchr(true_name, '/');
+ if (lastSlash == true_name) {
+ dirname = strdup("/");
+ basename = strdup(lastSlash+1);
+ } else if (lastSlash != NULL) {
/*
- * Find rightmost slash, if any.
+ * Found it. Designate everything before it as the parent directory,
+ * everything after it as the final component.
*/
- last_component = (char *)strrchr(true_name, '/');
- if (last_component == (char *)true_name) {
- strcpy(parent_dir, "/");
- last_component++;
- }
- else if (last_component != (char *)NULL) {
- /*
- * Found it. Designate everything before it as the parent directory,
- * everything after it as the final component.
- */
- strncpy(parent_dir, true_name, last_component - true_name);
- parent_dir[last_component - true_name] = 0;
- last_component++; /*Skip the slash */
- } else {
- /*
- * No slash appears in the given file name. Set parent_dir to the current
- * directory, and the last component as the given name.
- */
- strcpy(parent_dir, ".");
- last_component = true_name;
- }
+ *lastSlash = '\0';
+ dirname = strdup(true_name);
+ basename = strdup(lastSlash+1);
+ } else {
+ /*
+ * No slash appears in the given file name. Set parent_dir to the current
+ * directory, and the last component as the given name.
+ */
+ dirname = strdup(".");
+ basename = strdup(true_name);
+ }
- if (strcmp(last_component, ".") == 0
- || strcmp(last_component, "..") == 0) {
- fprintf(stderr,
- "%s: you may not use '.' or '..' as the last component\n",
- pn);
- fprintf(stderr, "%s: of a name in the 'fs lsmount' command.\n",
- pn);
+ if (strcmp(basename, ".") == 0
+ || strcmp(basename, "..") == 0) {
+ fprintf(stderr,
+ "%s: you may not use '.' or '..' as the last component\n", pn);
+ fprintf(stderr, "%s: of a name in this fs command.\n", pn);
+ goto out;
+ }
+
+ *outdir = dirname;
+ *outbase = basename;
+
+ return 0;
+
+out:
+ if (outdir)
+ free(outdir);
+ if (outbase)
+ free(outbase);
+ return -1;
+}
+
+
+static int
+ListMountCmd(struct cmd_syndesc *as, void *arock)
+{
+ afs_int32 code;
+ struct ViceIoctl blob;
+ struct cmd_item *ti;
+ char *last_component;
+ char *parent_dir;
+ int thru_symlink = 0;
+ int error = 0;
+
+ for (ti = as->parms[0].items; ti; ti = ti->next) {
+ if (GetLastComponent(ti->data, &parent_dir,
+ &last_component, &thru_symlink) != 0) {
error = 1;
continue;
}
memset(space, 0, AFS_PIOCTL_MAXSIZE);
code = pioctl(parent_dir, VIOC_AFS_STAT_MT_PT, &blob, 1);
+ free(last_component);
+ free(parent_dir);
if (code == 0) {
printf("'%s' is a %smount point for volume '%s'\n", ti->data,
afs_int32 code;
struct ViceIoctl blob;
struct cmd_item *ti;
- char orig_name[1024]; /*Original name, may be modified */
- char true_name[1024]; /*``True'' dirname (e.g., symlink target) */
- char parent_dir[1024]; /*Parent directory of true name */
- char *last_component; /*Last component of true name */
- struct stat statbuff; /*Buffer for status info */
- int link_chars_read; /*Num chars read in readlink() */
- int thru_symlink; /*Did we get to a mount point via a symlink? */
+ char *last_component;
+ char *parent_dir;
int error = 0;
for (ti = as->parms[0].items; ti; ti = ti->next) {
- /* once per file */
- thru_symlink = 0;
- sprintf(orig_name, "%s%s", (ti->data[0] == '/') ? "" : "./",
- ti->data);
-
- if (lstat(orig_name, &statbuff) < 0) {
- /* if lstat fails, we should still try the pioctl, since it
- * may work (for example, lstat will fail, but pioctl will
- * work if the volume of offline (returning ENODEV). */
- statbuff.st_mode = S_IFDIR; /* lie like pros */
- }
-
- /*
- * The lstat succeeded. If the given file is a symlink, substitute
- * the file name with the link name.
- */
- if ((statbuff.st_mode & S_IFMT) == S_IFLNK) {
- thru_symlink = 1;
- /*
- * Read name of resolved file.
- */
- link_chars_read = readlink(orig_name, true_name, 1024);
- if (link_chars_read <= 0) {
- fprintf(stderr,
- "%s: Can't read target name for '%s' symbolic link!\n",
- pn, orig_name);
- error = 1;
- continue;
- }
-
- /*
- * Add a trailing null to what was read, bump the length.
- */
- true_name[link_chars_read++] = 0;
-
- /*
- * If the symlink is an absolute pathname, we're fine. Otherwise, we
- * have to create a full pathname using the original name and the
- * relative symlink name. Find the rightmost slash in the original
- * name (we know there is one) and splice in the symlink value.
- */
- if (true_name[0] != '/') {
- last_component = (char *)strrchr(orig_name, '/');
- strcpy(++last_component, true_name);
- strcpy(true_name, orig_name);
- }
- } else
- strcpy(true_name, orig_name);
-
- /*
- * Find rightmost slash, if any.
- */
- last_component = (char *)strrchr(true_name, '/');
- if (last_component == (char *)true_name) {
- strcpy(parent_dir, "/");
- last_component++;
- }
- else if (last_component != (char *)NULL) {
- /*
- * Found it. Designate everything before it as the parent directory,
- * everything after it as the final component.
- */
- strncpy(parent_dir, true_name, last_component - true_name);
- parent_dir[last_component - true_name] = 0;
- last_component++; /*Skip the slash */
- } else {
- /*
- * No slash appears in the given file name. Set parent_dir to the current
- * directory, and the last component as the given name.
- */
- strcpy(parent_dir, ".");
- last_component = true_name;
- }
-
- if (strcmp(last_component, ".") == 0
- || strcmp(last_component, "..") == 0) {
- fprintf(stderr,
- "%s: you may not use '.' or '..' as the last component\n",
- pn);
- fprintf(stderr, "%s: of a name in the 'fs flushmount' command.\n",
- pn);
+ if (GetLastComponent(ti->data, &parent_dir,
+ &last_component, NULL) != 0) {
error = 1;
continue;
}
blob.in = last_component;
blob.in_size = strlen(last_component) + 1;
blob.out_size = 0;
- memset(space, 0, AFS_PIOCTL_MAXSIZE);
code = pioctl(parent_dir, VIOC_AFS_FLUSHMOUNT, &blob, 1);
+ free(last_component);
+ free(parent_dir);
+
if (code != 0) {
if (errno == EINVAL) {
fprintf(stderr, "'%s' is not a mount point.\n", ti->data);