diff options
Diffstat (limited to 'lib/libc/gen/getvfsbyname.c')
-rw-r--r-- | lib/libc/gen/getvfsbyname.c | 40 |
1 files changed, 22 insertions, 18 deletions
diff --git a/lib/libc/gen/getvfsbyname.c b/lib/libc/gen/getvfsbyname.c index eb6f26f..3ab03f4 100644 --- a/lib/libc/gen/getvfsbyname.c +++ b/lib/libc/gen/getvfsbyname.c @@ -41,39 +41,43 @@ __FBSDID("$FreeBSD$"); #include <sys/mount.h> #include <sys/sysctl.h> #include <errno.h> +#include <stdlib.h> +#include <string.h> /* * Given a filesystem name, determine if it is resident in the kernel, - * and if it is resident, return its vfsconf structure. + * and if it is resident, return its xvfsconf structure. */ +int getvfsbyname(fsname, vfcp) const char *fsname; - struct vfsconf *vfcp; + struct xvfsconf *vfcp; { #ifdef __NETBSD_SYSCALLS errno = ENOSYS; #else - int name[4], maxtypenum, cnt; + struct xvfsconf *xvfsp; size_t buflen; + int cnt, i; - name[0] = CTL_VFS; - name[1] = VFS_GENERIC; - name[2] = VFS_MAXTYPENUM; - buflen = 4; - if (sysctl(name, 3, &maxtypenum, &buflen, (void *)0, (size_t)0) < 0) + if (sysctlbyname("vfs.conflist", NULL, &buflen, NULL, 0) < 0) return (-1); - name[2] = VFS_CONF; - buflen = sizeof *vfcp; - for (cnt = 0; cnt < maxtypenum; cnt++) { - name[3] = cnt; - if (sysctl(name, 4, vfcp, &buflen, (void *)0, (size_t)0) < 0) { - if (errno != EOPNOTSUPP) - return (-1); - continue; - } - if (!strcmp(fsname, vfcp->vfc_name)) + xvfsp = malloc(buflen); + if (xvfsp == NULL) + return (-1); + if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0) { + free(xvfsp); + return (-1); + } + cnt = buflen / sizeof(struct xvfsconf); + for (i = 0; i < cnt; i++) { + if (strcmp(fsname, xvfsp[i].vfc_name) == 0) { + memcpy(vfcp, xvfsp + i, sizeof(struct xvfsconf)); + free(xvfsp); return (0); + } } + free(xvfsp); errno = ENOENT; #endif return (-1); |