#include "xml.h"
#include "io.h"
#include "timestamp.h"
+#include <limits.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
}
-/* Simple function that returns the concatenation of 4 strings. */
-static char *strcat_dup(const char *s1, const char *s2, const char *s3,
- const char *s4)
+/* Simple function that returns the concatenation of 2 strings. */
+static char *strcat_dup(const char *s1, const char *s2, size_t max_len)
{
- size_t len = strlen(s1) + strlen(s2) + strlen(s3) + strlen(s4) + 1;
- char *p = MALLOC(len);
+ size_t len = strlen(s1) + strlen(s2);
+ if (len > max_len)
+ len = max_len;
+ char *p = MALLOC(len + 1);
if (!p)
return NULL;
- p = strcpy(p, s1);
- p = strcat(p, s2);
- p = strcat(p, s3);
- return strcat(p, s4);
+ snprintf(p, len + 1, "%s%s", s1, s2);
+ return p;
}
-/* Removes trailing forward slashes in a string. */
-static void remove_trailing_slashes(char *s)
+static int set_message_queue_names(struct wimfs_context *ctx,
+ const char *mount_dir)
{
- long len = strlen(s);
- for (long i = len - 1; i >= 1; i--) {
- if (s[i] == '/')
- s[i] = '\0';
- else
- break;
- }
-}
+ static const char *u2d_prefix = "/wimlib-unmount-to-daemon-mq";
+ static const char *d2u_prefix = "/wimlib-daemon-to-unmount-mq";
+ char *dir_path;
+ char *p;
+ int ret;
-/* Changes forward slashes to underscores in a string. */
-static void s_slashes_underscores_g(char *s)
-{
- while (*s) {
- if (*s == '/')
- *s = '_';
- s++;
+ dir_path = realpath(mount_dir, NULL);
+ if (!dir_path) {
+ ERROR_WITH_ERRNO("Failed to resolve path \"%s\"", mount_dir);
+ return WIMLIB_ERR_NOTDIR;
}
-}
-static int set_message_queue_names(struct wimfs_context *ctx,
- const char *mount_dir)
-{
- static const char *slash = "/";
- static const char *prefix = "wimlib-";
- static const char *u2d_suffix = "unmount-to-daemon-mq";
- static const char *d2u_suffix = "daemon-to-unmount-mq";
+ DEBUG("Using absolute dir_path = `%s'", dir_path);
- const char *mount_dir_basename = path_basename(mount_dir);
- ctx->unmount_to_daemon_mq_name = strcat_dup(slash, mount_dir_basename,
- prefix, u2d_suffix);
+ p = dir_path;
+ while (*p) {
+ if (*p == '/')
+ *p = 0xff;
+ p++;
+ }
+
+ ctx->unmount_to_daemon_mq_name = strcat_dup(u2d_prefix, dir_path,
+ NAME_MAX);
if (!ctx->unmount_to_daemon_mq_name) {
- ERROR("Out of memory");
- return WIMLIB_ERR_NOMEM;
+ ret = WIMLIB_ERR_NOMEM;
+ goto out_free_dir_path;
}
- ctx->daemon_to_unmount_mq_name = strcat_dup(slash, mount_dir_basename,
- prefix, d2u_suffix);
+ ctx->daemon_to_unmount_mq_name = strcat_dup(d2u_prefix, dir_path,
+ NAME_MAX);
if (!ctx->daemon_to_unmount_mq_name) {
- ERROR("Out of memory");
- FREE(ctx->unmount_to_daemon_mq_name);
- ctx->unmount_to_daemon_mq_name = NULL;
- return WIMLIB_ERR_NOMEM;
+ ret = WIMLIB_ERR_NOMEM;
+ goto out_free_unmount_to_daemon_mq_name;
}
- remove_trailing_slashes(ctx->unmount_to_daemon_mq_name);
- remove_trailing_slashes(ctx->daemon_to_unmount_mq_name);
- s_slashes_underscores_g(ctx->unmount_to_daemon_mq_name + 1);
- s_slashes_underscores_g(ctx->daemon_to_unmount_mq_name + 1);
- return 0;
+ ret = 0;
+ goto out_free_dir_path;
+out_free_unmount_to_daemon_mq_name:
+ FREE(ctx->unmount_to_daemon_mq_name);
+ ctx->unmount_to_daemon_mq_name = NULL;
+out_free_dir_path:
+ FREE(dir_path);
+ return ret;
}
static void free_message_queue_names(struct wimfs_context *ctx)
else
flags = O_WRONLY | O_CREAT;
+ DEBUG("Opening message queue \"%s\"", ctx->unmount_to_daemon_mq_name);
ctx->unmount_to_daemon_mq = mq_open(ctx->unmount_to_daemon_mq_name,
flags, 0700, NULL);
else
flags = O_RDONLY | O_CREAT;
+ DEBUG("Opening message queue \"%s\"", ctx->daemon_to_unmount_mq_name);
ctx->daemon_to_unmount_mq = mq_open(ctx->daemon_to_unmount_mq_name,
flags, 0700, NULL);
ctx.wim = wim;
ctx.mount_flags = flags;
+ DEBUG("Calling fuse_main()");
+
ret = fuse_main(argc, argv, &wimfs_operations, &ctx);
+
+ DEBUG("Returned from fuse_main() (ret = %d)", ret);
if (ret)
ret = WIMLIB_ERR_FUSE;
out_free_dir_copy: