1 | /* |
1 | /* |
2 | * libeio implementation |
2 | * libeio implementation |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016 Marc Alexander Lehmann <libeio@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013,2016,2017 Marc Alexander Lehmann <libeio@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
… | |
… | |
231 | #define D_NAME(entp) entp.cFileName |
231 | #define D_NAME(entp) entp.cFileName |
232 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
232 | #define D_TYPE(entp) (entp.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ? DT_DIR : DT_REG) |
233 | |
233 | |
234 | #else |
234 | #else |
235 | |
235 | |
|
|
236 | #include <sys/ioctl.h> |
236 | #include <sys/time.h> |
237 | #include <sys/time.h> |
237 | #include <sys/select.h> |
238 | #include <sys/select.h> |
238 | #include <unistd.h> |
239 | #include <unistd.h> |
239 | #include <signal.h> |
240 | #include <signal.h> |
240 | #include <dirent.h> |
241 | #include <dirent.h> |
… | |
… | |
299 | # else |
300 | # else |
300 | # error sendfile support requested but not available |
301 | # error sendfile support requested but not available |
301 | # endif |
302 | # endif |
302 | #endif |
303 | #endif |
303 | |
304 | |
|
|
305 | #if HAVE_RENAMEAT2 |
|
|
306 | # include <sys/syscall.h> |
|
|
307 | # include <linux/fs.h> |
|
|
308 | #endif |
|
|
309 | |
304 | #ifndef D_TYPE |
310 | #ifndef D_TYPE |
305 | # define D_TYPE(de) 0 |
311 | # define D_TYPE(de) 0 |
306 | #endif |
312 | #endif |
307 | #ifndef D_INO |
313 | #ifndef D_INO |
308 | # define D_INO(de) 0 |
314 | # define D_INO(de) 0 |
… | |
… | |
316 | # define NAME_MAX 4096 |
322 | # define NAME_MAX 4096 |
317 | #endif |
323 | #endif |
318 | |
324 | |
319 | /* used for readlink etc. */ |
325 | /* used for readlink etc. */ |
320 | #ifndef PATH_MAX |
326 | #ifndef PATH_MAX |
321 | # define PATH_MAX 4096 |
327 | # define PATH_MAX 0 |
322 | #endif |
328 | #endif |
|
|
329 | |
|
|
330 | #ifndef O_CLOEXEC |
|
|
331 | #define O_CLOEXEC 0 |
|
|
332 | #endif |
|
|
333 | |
|
|
334 | #ifndef EIO_PATH_MIN |
|
|
335 | # define EIO_PATH_MIN 8160 |
|
|
336 | #endif |
|
|
337 | |
|
|
338 | #define EIO_PATH_MAX (PATH_MAX <= EIO_PATH_MIN ? EIO_PATH_MIN : PATH_MAX) |
323 | |
339 | |
324 | /* buffer size for various temporary buffers */ |
340 | /* buffer size for various temporary buffers */ |
325 | #define EIO_BUFSIZE 65536 |
341 | #define EIO_BUFSIZE 65536 |
326 | |
342 | |
327 | #define dBUF \ |
343 | #define dBUF \ |
… | |
… | |
541 | } |
557 | } |
542 | |
558 | |
543 | /*****************************************************************************/ |
559 | /*****************************************************************************/ |
544 | /* work around various missing functions */ |
560 | /* work around various missing functions */ |
545 | |
561 | |
|
|
562 | #if HAVE_POSIX_CLOSE && !__linux |
|
|
563 | # define eio__close(fd) posix_close (fd, 0) |
|
|
564 | #else |
|
|
565 | # define eio__close(fd) close (fd) |
|
|
566 | #endif |
|
|
567 | |
|
|
568 | /* close() without disturbing errno */ |
|
|
569 | static void |
|
|
570 | silent_close (int fd) |
|
|
571 | { |
|
|
572 | int saved_errno = errno; |
|
|
573 | eio__close (fd); |
|
|
574 | errno = saved_errno; |
|
|
575 | } |
|
|
576 | |
546 | #ifndef HAVE_UTIMES |
577 | #ifndef HAVE_UTIMES |
547 | |
578 | |
548 | # undef utimes |
579 | # undef utimes |
549 | # define utimes(path,times) eio__utimes (path, times) |
580 | # define utimes(path,times) eio__utimes (path, times) |
550 | |
581 | |
… | |
… | |
928 | intptr_t end = addr + len; |
959 | intptr_t end = addr + len; |
929 | intptr_t page = eio_pagesize (); |
960 | intptr_t page = eio_pagesize (); |
930 | |
961 | |
931 | if (addr < end) |
962 | if (addr < end) |
932 | if (flags & EIO_MT_MODIFY) /* modify */ |
963 | if (flags & EIO_MT_MODIFY) /* modify */ |
933 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
964 | do { *((volatile sig_atomic_t *)addr) |= 0; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
934 | else |
965 | else |
935 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < len && !EIO_CANCELLED (req)); |
966 | do { *((volatile sig_atomic_t *)addr) ; } while ((addr += page) < end && !EIO_CANCELLED (req)); |
936 | } |
967 | } |
937 | |
968 | |
938 | return 0; |
969 | return 0; |
939 | } |
970 | } |
940 | |
971 | |
… | |
… | |
974 | |
1005 | |
975 | errno = ENOENT; |
1006 | errno = ENOENT; |
976 | if (!*rel) |
1007 | if (!*rel) |
977 | return -1; |
1008 | return -1; |
978 | |
1009 | |
979 | res = etp_tmpbuf_get (tmpbuf, PATH_MAX * 3); |
1010 | res = etp_tmpbuf_get (tmpbuf, EIO_PATH_MAX * 3); |
980 | #ifdef _WIN32 |
1011 | #ifdef _WIN32 |
981 | if (_access (rel, 4) != 0) |
1012 | if (_access (rel, 4) != 0) |
982 | return -1; |
1013 | return -1; |
983 | |
1014 | |
984 | symlinks = GetFullPathName (rel, PATH_MAX * 3, res, 0); |
1015 | symlinks = GetFullPathName (rel, EIO_PATH_MAX * 3, res, 0); |
985 | |
1016 | |
986 | errno = ENAMETOOLONG; |
1017 | errno = ENAMETOOLONG; |
987 | if (symlinks >= PATH_MAX * 3) |
1018 | if (symlinks >= EIO_PATH_MAX * 3) |
988 | return -1; |
1019 | return -1; |
989 | |
1020 | |
990 | errno = EIO; |
1021 | errno = EIO; |
991 | if (symlinks <= 0) |
1022 | if (symlinks <= 0) |
992 | return -1; |
1023 | return -1; |
993 | |
1024 | |
994 | return symlinks; |
1025 | return symlinks; |
995 | |
1026 | |
996 | #else |
1027 | #else |
997 | tmp1 = res + PATH_MAX; |
1028 | tmp1 = res + EIO_PATH_MAX; |
998 | tmp2 = tmp1 + PATH_MAX; |
1029 | tmp2 = tmp1 + EIO_PATH_MAX; |
999 | |
1030 | |
1000 | #if 0 /* disabled, the musl way to do things is just too racy */ |
1031 | #if 0 /* disabled, the musl way to do things is just too racy */ |
1001 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1032 | #if __linux && defined(O_NONBLOCK) && defined(O_NOATIME) |
1002 | /* on linux we may be able to ask the kernel */ |
1033 | /* on linux we may be able to ask the kernel */ |
1003 | { |
1034 | { |
1004 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1035 | int fd = open (rel, O_RDONLY | O_NONBLOCK | O_NOCTTY | O_NOATIME); |
1005 | |
1036 | |
1006 | if (fd >= 0) |
1037 | if (fd >= 0) |
1007 | { |
1038 | { |
1008 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1039 | sprintf (tmp1, "/proc/self/fd/%d", fd); |
1009 | req->result = readlink (tmp1, res, PATH_MAX); |
1040 | req->result = readlink (tmp1, res, EIO_PATH_MAX); |
1010 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
1041 | /* here we should probably stat the open file and the disk file, to make sure they still match */ |
1011 | close (fd); |
1042 | eio__close (fd); |
1012 | |
1043 | |
1013 | if (req->result > 0) |
1044 | if (req->result > 0) |
1014 | goto done; |
1045 | goto done; |
1015 | } |
1046 | } |
1016 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
1047 | else if (errno == ELOOP || errno == ENAMETOOLONG || errno == ENOENT || errno == ENOTDIR || errno == EIO) |
… | |
… | |
1027 | if (wd == EIO_INVALID_WD) |
1058 | if (wd == EIO_INVALID_WD) |
1028 | return -1; |
1059 | return -1; |
1029 | |
1060 | |
1030 | if (wd == EIO_CWD) |
1061 | if (wd == EIO_CWD) |
1031 | { |
1062 | { |
1032 | if (!getcwd (res, PATH_MAX)) |
1063 | if (!getcwd (res, EIO_PATH_MAX)) |
1033 | return -1; |
1064 | return -1; |
1034 | |
1065 | |
1035 | len = strlen (res); |
1066 | len = strlen (res); |
1036 | } |
1067 | } |
1037 | else |
1068 | else |
… | |
… | |
1084 | |
1115 | |
1085 | /* zero-terminate, for readlink */ |
1116 | /* zero-terminate, for readlink */ |
1086 | res [len + 1] = 0; |
1117 | res [len + 1] = 0; |
1087 | |
1118 | |
1088 | /* now check if it's a symlink */ |
1119 | /* now check if it's a symlink */ |
1089 | linklen = readlink (tmpbuf->ptr, tmp1, PATH_MAX); |
1120 | linklen = readlink (tmpbuf->ptr, tmp1, EIO_PATH_MAX); |
1090 | |
1121 | |
1091 | if (linklen < 0) |
1122 | if (linklen < 0) |
1092 | { |
1123 | { |
1093 | if (errno != EINVAL) |
1124 | if (errno != EINVAL) |
1094 | return -1; |
1125 | return -1; |
… | |
… | |
1100 | { |
1131 | { |
1101 | /* yay, it was a symlink - build new path in tmp2 */ |
1132 | /* yay, it was a symlink - build new path in tmp2 */ |
1102 | int rellen = strlen (rel); |
1133 | int rellen = strlen (rel); |
1103 | |
1134 | |
1104 | errno = ENAMETOOLONG; |
1135 | errno = ENAMETOOLONG; |
1105 | if (linklen + 1 + rellen >= PATH_MAX) |
1136 | if (linklen + 1 + rellen >= EIO_PATH_MAX) /* also catch linklen >= EIO_PATH_MAX */ |
1106 | return -1; |
1137 | return -1; |
1107 | |
1138 | |
1108 | errno = ELOOP; |
1139 | errno = ELOOP; |
1109 | if (!--symlinks) |
1140 | if (!--symlinks) |
1110 | return -1; |
1141 | return -1; |
… | |
… | |
1374 | return; |
1405 | return; |
1375 | |
1406 | |
1376 | dirp = fdopendir (fd); |
1407 | dirp = fdopendir (fd); |
1377 | |
1408 | |
1378 | if (!dirp) |
1409 | if (!dirp) |
1379 | close (fd); |
1410 | silent_close (fd); |
1380 | } |
1411 | } |
1381 | else |
1412 | else |
1382 | dirp = opendir (req->ptr1); |
1413 | dirp = opendir (req->ptr1); |
1383 | #else |
1414 | #else |
1384 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
1415 | dirp = opendir (wd_expand (&self->tmpbuf, req->wd, req->ptr1)); |
… | |
… | |
1650 | } |
1681 | } |
1651 | |
1682 | |
1652 | eio_wd |
1683 | eio_wd |
1653 | eio_wd_open_sync (eio_wd wd, const char *path) |
1684 | eio_wd_open_sync (eio_wd wd, const char *path) |
1654 | { |
1685 | { |
1655 | struct etp_tmpbuf tmpbuf = { }; |
1686 | struct etp_tmpbuf tmpbuf = { 0 }; |
1656 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
1687 | wd = eio__wd_open_sync (&tmpbuf, wd, path); |
1657 | free (tmpbuf.ptr); |
1688 | free (tmpbuf.ptr); |
1658 | |
1689 | |
1659 | return wd; |
1690 | return wd; |
1660 | } |
1691 | } |
… | |
… | |
1663 | eio_wd_close_sync (eio_wd wd) |
1694 | eio_wd_close_sync (eio_wd wd) |
1664 | { |
1695 | { |
1665 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
1696 | if (wd != EIO_INVALID_WD && wd != EIO_CWD) |
1666 | { |
1697 | { |
1667 | #if HAVE_AT |
1698 | #if HAVE_AT |
1668 | close (wd->fd); |
1699 | eio__close (wd->fd); |
1669 | #endif |
1700 | #endif |
1670 | free (wd); |
1701 | free (wd); |
1671 | } |
1702 | } |
1672 | } |
1703 | } |
1673 | |
1704 | |
1674 | #if HAVE_AT |
1705 | #if HAVE_AT |
1675 | |
1706 | |
|
|
1707 | static int |
|
|
1708 | eio__renameat2 (int olddirfd, const char *oldpath, int newdirfd, const char *newpath, unsigned int flags) |
|
|
1709 | { |
|
|
1710 | #if HAVE_RENAMEAT2 |
|
|
1711 | return syscall (SYS_renameat2, olddirfd, oldpath, newdirfd, newpath, flags); |
|
|
1712 | #else |
|
|
1713 | if (flags) |
|
|
1714 | return EIO_ENOSYS (); |
|
|
1715 | |
|
|
1716 | return renameat (olddirfd, oldpath, newdirfd, newpath); |
|
|
1717 | #endif |
|
|
1718 | } |
|
|
1719 | |
1676 | /* they forgot these */ |
1720 | /* they forgot these */ |
1677 | |
1721 | |
1678 | static int |
1722 | static int |
1679 | eio__truncateat (int dirfd, const char *path, off_t length) |
1723 | eio__truncateat (int dirfd, const char *path, off_t length) |
1680 | { |
1724 | { |
… | |
… | |
1683 | |
1727 | |
1684 | if (fd < 0) |
1728 | if (fd < 0) |
1685 | return fd; |
1729 | return fd; |
1686 | |
1730 | |
1687 | res = ftruncate (fd, length); |
1731 | res = ftruncate (fd, length); |
1688 | close (fd); |
1732 | silent_close (fd); |
1689 | return res; |
1733 | return res; |
1690 | } |
1734 | } |
1691 | |
1735 | |
1692 | static int |
1736 | static int |
1693 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
1737 | eio__statvfsat (int dirfd, const char *path, struct statvfs *buf) |
… | |
… | |
1697 | |
1741 | |
1698 | if (fd < 0) |
1742 | if (fd < 0) |
1699 | return fd; |
1743 | return fd; |
1700 | |
1744 | |
1701 | res = fstatvfs (fd, buf); |
1745 | res = fstatvfs (fd, buf); |
1702 | close (fd); |
1746 | silent_close (fd); |
1703 | return res; |
1747 | return res; |
1704 | |
|
|
1705 | } |
1748 | } |
1706 | |
1749 | |
1707 | #endif |
1750 | #endif |
1708 | |
1751 | |
1709 | /*****************************************************************************/ |
1752 | /*****************************************************************************/ |
… | |
… | |
1717 | req->ptr2 = malloc (len); \ |
1760 | req->ptr2 = malloc (len); \ |
1718 | if (!req->ptr2) \ |
1761 | if (!req->ptr2) \ |
1719 | { \ |
1762 | { \ |
1720 | errno = ENOMEM; \ |
1763 | errno = ENOMEM; \ |
1721 | req->result = -1; \ |
1764 | req->result = -1; \ |
1722 | break; \ |
1765 | goto alloc_fail; \ |
1723 | } \ |
1766 | } \ |
1724 | } |
1767 | } |
1725 | |
1768 | |
1726 | /*****************************************************************************/ |
1769 | /*****************************************************************************/ |
|
|
1770 | |
|
|
1771 | static void |
|
|
1772 | eio__slurp (int fd, eio_req *req) |
|
|
1773 | { |
|
|
1774 | req->result = fd; |
|
|
1775 | |
|
|
1776 | if (fd < 0) |
|
|
1777 | return; |
|
|
1778 | |
|
|
1779 | if (req->offs < 0 || !req->size) /* do we need the size? */ |
|
|
1780 | { |
|
|
1781 | off_t size = lseek (fd, 0, SEEK_END); |
|
|
1782 | |
|
|
1783 | if (req->offs < 0) |
|
|
1784 | req->offs += size; |
|
|
1785 | |
|
|
1786 | if (!req->size) |
|
|
1787 | req->size = size - req->offs; |
|
|
1788 | } |
|
|
1789 | |
|
|
1790 | ALLOC (req->size); |
|
|
1791 | req->result = pread (fd, req->ptr2, req->size, req->offs); |
|
|
1792 | |
|
|
1793 | silent_close (fd); |
|
|
1794 | |
|
|
1795 | alloc_fail: |
|
|
1796 | ; |
|
|
1797 | } |
1727 | |
1798 | |
1728 | int ecb_cold |
1799 | int ecb_cold |
1729 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1800 | eio_init (void (*want_poll)(void), void (*done_poll)(void)) |
1730 | { |
1801 | { |
1731 | eio_want_poll_cb = want_poll; |
1802 | eio_want_poll_cb = want_poll; |
… | |
… | |
1829 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1900 | req->result = fstatat (dirfd, req->ptr1, (EIO_STRUCT_STAT *)req->ptr2, AT_SYMLINK_NOFOLLOW); break; |
1830 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1901 | case EIO_CHOWN: req->result = fchownat (dirfd, req->ptr1, req->int2, req->int3, 0); break; |
1831 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1902 | case EIO_CHMOD: req->result = fchmodat (dirfd, req->ptr1, (mode_t)req->int2, 0); break; |
1832 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1903 | case EIO_TRUNCATE: req->result = eio__truncateat (dirfd, req->ptr1, req->offs); break; |
1833 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
1904 | case EIO_OPEN: req->result = openat (dirfd, req->ptr1, req->int1, (mode_t)req->int2); break; |
|
|
1905 | case EIO_SLURP: eio__slurp ( openat (dirfd, req->ptr1, O_RDONLY | O_CLOEXEC), req); break; |
1834 | |
1906 | |
1835 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1907 | case EIO_UNLINK: req->result = unlinkat (dirfd, req->ptr1, 0); break; |
1836 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
1908 | case EIO_RMDIR: /* complications arise because "." cannot be removed, so we might have to expand */ |
1837 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1909 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1838 | ? rmdir (req->wd->str) |
1910 | ? rmdir (req->wd->str) |
1839 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1911 | : unlinkat (dirfd, req->ptr1, AT_REMOVEDIR); break; |
1840 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
1912 | case EIO_MKDIR: req->result = mkdirat (dirfd, req->ptr1, (mode_t)req->int2); break; |
|
|
1913 | case EIO_RENAME: req->result = eio__renameat2 ( |
|
|
1914 | dirfd, |
1841 | case EIO_RENAME: /* complications arise because "." cannot be renamed, so we might have to expand */ |
1915 | /* complications arise because "." cannot be renamed, so we might have to expand */ |
1842 | req->result = req->wd && SINGLEDOT (req->ptr1) |
1916 | req->wd && SINGLEDOT (req->ptr1) ? req->wd->str : req->ptr1, |
1843 | ? rename (req->wd->str, req->ptr2) |
1917 | WD2FD ((eio_wd)req->int3), |
1844 | : renameat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2); break; |
1918 | req->ptr2, |
|
|
1919 | req->int2 |
|
|
1920 | ); |
|
|
1921 | break; |
1845 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1922 | case EIO_LINK: req->result = linkat (dirfd, req->ptr1, WD2FD ((eio_wd)req->int3), req->ptr2, 0); break; |
1846 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1923 | case EIO_SYMLINK: req->result = symlinkat (req->ptr1, dirfd, req->ptr2); break; |
1847 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1924 | case EIO_MKNOD: req->result = mknodat (dirfd, req->ptr1, (mode_t)req->int2, (dev_t)req->offs); break; |
1848 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1849 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, PATH_MAX); break; |
|
|
1850 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1925 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1851 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1926 | req->result = eio__statvfsat (dirfd, req->ptr1, (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1927 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1928 | req->result = readlinkat (dirfd, req->ptr1, req->ptr2, EIO_PATH_MAX); |
|
|
1929 | if (req->result == EIO_PATH_MAX) |
|
|
1930 | { |
|
|
1931 | req->result = -1; |
|
|
1932 | errno = ENAMETOOLONG; |
|
|
1933 | } |
|
|
1934 | break; |
1852 | case EIO_UTIME: |
1935 | case EIO_UTIME: |
1853 | case EIO_FUTIME: |
1936 | case EIO_FUTIME: |
1854 | { |
1937 | { |
1855 | struct timespec ts[2]; |
1938 | struct timespec ts[2]; |
1856 | struct timespec *times; |
1939 | struct timespec *times; |
… | |
… | |
1881 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1964 | req->result = lstat (path , (EIO_STRUCT_STAT *)req->ptr2); break; |
1882 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
1965 | case EIO_CHOWN: req->result = chown (path , req->int2, req->int3); break; |
1883 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
1966 | case EIO_CHMOD: req->result = chmod (path , (mode_t)req->int2); break; |
1884 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
1967 | case EIO_TRUNCATE: req->result = truncate (path , req->offs); break; |
1885 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
1968 | case EIO_OPEN: req->result = open (path , req->int1, (mode_t)req->int2); break; |
|
|
1969 | case EIO_SLURP: eio__slurp ( open (path , O_RDONLY | O_CLOEXEC), req); break; |
1886 | |
1970 | |
1887 | case EIO_UNLINK: req->result = unlink (path ); break; |
1971 | case EIO_UNLINK: req->result = unlink (path ); break; |
1888 | case EIO_RMDIR: req->result = rmdir (path ); break; |
1972 | case EIO_RMDIR: req->result = rmdir (path ); break; |
1889 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1973 | case EIO_MKDIR: req->result = mkdir (path , (mode_t)req->int2); break; |
1890 | case EIO_RENAME: req->result = rename (path , req->ptr2); break; |
1974 | case EIO_RENAME: req->result = req->int2 ? EIO_ENOSYS () : rename (path, req->ptr2); break; |
1891 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
1975 | case EIO_LINK: req->result = link (path , req->ptr2); break; |
1892 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
1976 | case EIO_SYMLINK: req->result = symlink (path , req->ptr2); break; |
1893 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
1977 | case EIO_MKNOD: req->result = mknod (path , (mode_t)req->int2, (dev_t)req->offs); break; |
1894 | case EIO_READLINK: ALLOC (PATH_MAX); |
|
|
1895 | req->result = readlink (path, req->ptr2, PATH_MAX); break; |
|
|
1896 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1978 | case EIO_STATVFS: ALLOC (sizeof (EIO_STRUCT_STATVFS)); |
1897 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
1979 | req->result = statvfs (path , (EIO_STRUCT_STATVFS *)req->ptr2); break; |
|
|
1980 | case EIO_READLINK: ALLOC (EIO_PATH_MAX); |
|
|
1981 | req->result = readlink (path, req->ptr2, EIO_PATH_MAX); |
|
|
1982 | if (req->result == EIO_PATH_MAX) |
|
|
1983 | { |
|
|
1984 | req->result = -1; |
|
|
1985 | errno = ENAMETOOLONG; |
|
|
1986 | } |
|
|
1987 | break; |
1898 | |
1988 | |
1899 | case EIO_UTIME: |
1989 | case EIO_UTIME: |
1900 | case EIO_FUTIME: |
1990 | case EIO_FUTIME: |
1901 | { |
1991 | { |
1902 | struct timeval tv[2]; |
1992 | struct timeval tv[2]; |
… | |
… | |
1937 | |
2027 | |
1938 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
2028 | case EIO_FCHOWN: req->result = fchown (req->int1, req->int2, req->int3); break; |
1939 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
2029 | case EIO_FCHMOD: req->result = fchmod (req->int1, (mode_t)req->int2); break; |
1940 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
2030 | case EIO_FTRUNCATE: req->result = ftruncate (req->int1, req->offs); break; |
1941 | |
2031 | |
1942 | case EIO_CLOSE: req->result = close (req->int1); break; |
2032 | case EIO_CLOSE: req->result = eio__close (req->int1); break; |
1943 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
2033 | case EIO_DUP2: req->result = dup2 (req->int1, req->int2); break; |
1944 | case EIO_SYNC: req->result = 0; sync (); break; |
2034 | case EIO_SYNC: req->result = 0; sync (); break; |
1945 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
2035 | case EIO_FSYNC: req->result = fsync (req->int1); break; |
1946 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
2036 | case EIO_FDATASYNC: req->result = fdatasync (req->int1); break; |
1947 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
2037 | case EIO_SYNCFS: req->result = eio__syncfs (req->int1); break; |
… | |
… | |
1985 | default: |
2075 | default: |
1986 | req->result = EIO_ENOSYS (); |
2076 | req->result = EIO_ENOSYS (); |
1987 | break; |
2077 | break; |
1988 | } |
2078 | } |
1989 | |
2079 | |
|
|
2080 | alloc_fail: |
1990 | req->errorno = errno; |
2081 | req->errorno = errno; |
1991 | } |
2082 | } |
1992 | |
2083 | |
1993 | #ifndef EIO_NO_WRAPPERS |
2084 | #ifndef EIO_NO_WRAPPERS |
1994 | |
2085 | |
… | |
… | |
2247 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2338 | eio_req *eio_rename (const char *path, const char *new_path, int pri, eio_cb cb, void *data) |
2248 | { |
2339 | { |
2249 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2340 | return eio__2path (EIO_RENAME, path, new_path, pri, cb, data); |
2250 | } |
2341 | } |
2251 | |
2342 | |
|
|
2343 | eio_req *eio_slurp (const char *path, void *buf, size_t length, off_t offset, int pri, eio_cb cb, void *data) |
|
|
2344 | { |
|
|
2345 | REQ (EIO_SLURP); PATH; req->offs = offset; req->size = length; req->ptr2 = buf; SEND; |
|
|
2346 | } |
|
|
2347 | |
2252 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2348 | eio_req *eio_custom (void (*execute)(eio_req *), int pri, eio_cb cb, void *data) |
2253 | { |
2349 | { |
2254 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2350 | REQ (EIO_CUSTOM); req->feed = execute; SEND; |
2255 | } |
2351 | } |
2256 | |
2352 | |