forked from rpm/mutt
253 lines
6.9 KiB
Plaintext
253 lines
6.9 KiB
Plaintext
---
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Makefile.am | 4 -
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lib.c | 7 ++-
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mbox.c | 5 ++
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mh.c | 9 +++-
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mutt.h | 3 +
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opennfs.c | 122 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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sendlib.c | 4 +
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7 files changed, 150 insertions(+), 4 deletions(-)
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--- Makefile.am
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+++ Makefile.am 2017-06-13 08:34:27.043052733 +0000
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@@ -44,7 +44,7 @@ mutt_SOURCES = account.c addrbook.c addr
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handler.c hash.c hdrline.c header.h headers.c help.c history.c hook.c \
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init.c keymap.c lib.c list.h main.c mbox.c mbyte.c mbyte_table.h md5.c \
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menu.c mh.c muttlib.c mutt_idna.c mutt_sasl_plain.c mutt_socket.c \
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- mutt_tunnel.c mx.c newsrc.c nntp.c options.h pager.c parameter.h \
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+ mutt_tunnel.c mx.c newsrc.c nntp.c opennfs.c options.h pager.c parameter.h \
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parse.c pattern.c pattern.h pop.c pop_auth.c pop_lib.c postpone.c \
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query.c recvattach.c recvcmd.c rfc1524.c rfc2047.c rfc2231.c rfc3676.c \
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rfc822.c safe_asprintf.c score.c send.c sendlib.c sidebar.c signal.c \
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@@ -91,7 +91,7 @@ mutt_dotlock_SOURCES = mutt_dotlock.c
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mutt_dotlock_LDADD = $(LIBOBJS)
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mutt_dotlock_DEPENDENCIES = $(LIBOBJS)
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-pgpring_SOURCES = ascii.c extlib.c lib.c md5.c pgppubring.c sha1.c
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+pgpring_SOURCES = ascii.c extlib.c lib.c md5.c opennfs.c pgppubring.c sha1.c
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pgpring_LDADD = $(LIBOBJS) $(NCRYPT_LIBS) $(INTLLIBS)
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pgpring_DEPENDENCIES = $(LIBOBJS) $(NCRYPT_DEPS) $(INTLDEPS)
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--- lib.c
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+++ lib.c 2017-06-13 08:34:27.043052733 +0000
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@@ -37,6 +37,7 @@
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#include <time.h>
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#include <unistd.h>
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#include "lib.h"
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+#include "mutt.h"
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#ifdef HAVE_SYSEXITS_H
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#include <sysexits.h>
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@@ -635,6 +636,10 @@ int safe_open(const char *path, int flag
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struct stat osb, nsb;
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int fd;
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+#if defined(__linux__)
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+ if ((fd = opennfs (path, flags, 0600)) < 0)
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+ return fd;
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+#else
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if (flags & O_EXCL)
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{
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char safe_file[_POSIX_PATH_MAX];
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@@ -657,7 +662,7 @@ int safe_open(const char *path, int flag
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if ((fd = open(path, flags & ~O_EXCL, 0600)) < 0)
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return fd;
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-
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+#endif
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/* make sure the file is not symlink */
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if (lstat(path, &osb) < 0 || fstat(fd, &nsb) < 0 || !compare_stat(&osb, &nsb))
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{
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--- mbox.c
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+++ mbox.c 2017-06-13 08:34:27.043052733 +0000
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@@ -1069,8 +1069,13 @@ static int mbox_sync_mailbox(struct Cont
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/* Create a temporary file to write the new version of the mailbox in. */
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mutt_mktemp(tempfile, sizeof(tempfile));
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+#if defined(__linux__)
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+ if ((i = opennfs(tempfile, O_WRONLY | O_EXCL | O_CREAT, 0600)) == -1 ||
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+ (fp = fdopen(i, "w")) == NULL)
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+#else
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if ((i = open(tempfile, O_WRONLY | O_EXCL | O_CREAT, 0600)) == -1 ||
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(fp = fdopen(i, "w")) == NULL)
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+#endif
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{
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if (-1 != i)
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{
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--- mh.c
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+++ mh.c 2017-06-13 08:34:27.047052659 +0000
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@@ -357,7 +357,11 @@ static int mh_mkstemp(struct Context *de
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{
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snprintf(path, _POSIX_PATH_MAX, "%s/.mutt-%s-%d-%" PRIu64, dest->path,
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NONULL(Hostname), (int) getpid(), mutt_rand64());
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+#if defined(__linux__)
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+ if ((fd = opennfs(path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1)
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+#else
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if ((fd = open(path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1)
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+#endif
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{
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if (errno != EEXIST)
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{
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@@ -1488,8 +1492,11 @@ static int maildir_open_new_message(stru
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subdir, (long long) time(NULL), mutt_rand64(), NONULL(Hostname), suffix);
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mutt_debug(2, "maildir_open_new_message (): Trying %s.\n", path);
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-
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+#if defined(__linux__)
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+ if ((fd = opennfs(path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1)
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+#else
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if ((fd = open(path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1)
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+#endif
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{
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if (errno != EEXIST)
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{
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--- mutt.h
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+++ mutt.h 2017-06-13 08:34:27.047052659 +0000
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@@ -348,4 +348,7 @@ struct AttachMatch
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#define MUTT_PARTS_TOPLEVEL (1 << 0) /* is the top-level part */
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+#if defined(__linux__)
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+extern int opennfs(const char *, int, int);
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+#endif
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#endif /* _MUTT_H */
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--- opennfs.c
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+++ opennfs.c 2017-06-13 08:36:39.904588552 +0000
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@@ -0,0 +1,122 @@
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+#include <errno.h>
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+#include <fcntl.h>
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+#include <libgen.h>
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+#include <limits.h>
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+#include <nfs/nfs.h>
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <sys/types.h>
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+#include <sys/stat.h>
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+#include <sys/vfs.h>
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+#include <unistd.h>
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+
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+#ifndef NFS_SUPER_MAGIC
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+# define NFS_SUPER_MAGIC 0x6969
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+#endif
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+
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+int opennfs(const char *path, int flags, int mode)
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+{
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+ char tmplock[NFS_MAXPATHLEN+1], sysname[256];
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+ char *slash, *ptr, *dir, *base, *clear = (char*)0;
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+ struct stat ps, ts;
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+ struct statfs fs;
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+ ssize_t len;
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+ int ret;
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+
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+ if ((flags & (O_WRONLY|O_RDWR)) == 0)
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+ goto safe;
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+
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+ if ((flags & (O_EXCL|O_CREAT)) != (O_EXCL|O_CREAT))
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+ goto safe;
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+
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+#if defined(O_NOFOLLOW)
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+ flags |= O_NOFOLLOW;
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+#endif
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+
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+ ret = -1;
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+ if ((clear = strdup(path)) == (char*)0)
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+ goto err;
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+ dir = dirname(clear);
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+
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+ if ((ret = (statfs(dir, &fs))) < 0)
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+ goto err;
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+
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+ if (fs.f_type != NFS_SUPER_MAGIC)
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+ goto safe;
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+
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+ if ((ret = gethostname(sysname, sizeof(sysname))) < 0)
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+ goto err;
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+
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+ ret = -1;
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+ ptr = &tmplock[0];
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+ if (((len = snprintf(ptr, NFS_MAXPATHLEN, "%s/.%s-XXXXXX", dir, sysname)) < 0) || (len >= NFS_MAXPATHLEN))
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+ goto err;
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+ ptr += len;
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+ slash = ptr;
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+
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+ free(clear);
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+ clear = (char*)0;
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+
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+ if (mkdtemp(tmplock) == (char*)0)
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+ goto err;
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+
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+ ret = -1;
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+ if ((clear = strdup(path)) == (char*)0)
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+ goto rmd;
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+ base = basename(clear);
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+
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+ ret = -1;
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+ if (((len = snprintf(ptr, NFS_MAXPATHLEN - len, "/%s", base)) < 0) || (len >= (NFS_MAXPATHLEN - len)))
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+ goto rmd;
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+
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+ free(clear);
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+ clear = (char*)0;
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+
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+ if ((ret = open(tmplock, flags, mode)) < 0)
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+ goto rmd;
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+
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+ errno = 0;
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+ do {
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+ len = write(ret, "0", 2);
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+ } while ((len < 0) && (errno == EINTR));
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+ close(ret);
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+
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+ ret = -1;
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+ errno = EBADF;
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+ if (len != 2)
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+ goto unl;
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+
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+ errno = 0;
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+ if ((ret = lstat(tmplock, &ts)) < 0)
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+ goto unl;
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+
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+ if (((ret = link(tmplock, path)) < 0) && (errno == EEXIST))
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+ goto unl;
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+
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+ if ((ret = lstat(path, &ps)) < 0)
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+ goto unl;
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+
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+ ret = -1;
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+ errno = EEXIST;
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+ if (ps.st_nlink != 2)
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+ goto unl;
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+ if ((ps.st_rdev != ts.st_rdev) || (ps.st_ino != ts.st_ino))
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+ goto unl;
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+
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+ errno = 0;
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+ flags |= O_TRUNC;
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+ flags &= ~(O_EXCL|O_CREAT);
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+ ret = open(path, flags, mode);
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+unl:
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+ unlink(tmplock);
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+rmd:
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+ *slash = '\0';
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+ rmdir(tmplock);
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+err:
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+ if (clear) free(clear);
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+ return ret;
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+safe:
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+ if (clear) free(clear);
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+ return open(path, flags, mode);
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+}
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--- sendlib.c
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+++ sendlib.c 2017-06-13 08:34:27.047052659 +0000
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@@ -2255,7 +2255,11 @@ static int send_msg(const char *path, ch
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if (SendmailWait >= 0 && tempfile && *tempfile)
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{
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/* *tempfile will be opened as stdout */
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+#if defined(__linux__)
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+ if (opennfs(*tempfile, O_WRONLY | O_APPEND | O_CREAT | O_EXCL, 0600) < 0)
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+#else
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if (open(*tempfile, O_WRONLY | O_APPEND | O_CREAT | O_EXCL, 0600) < 0)
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+#endif
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_exit(S_ERR);
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/* redirect stderr to *tempfile too */
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if (dup(1) < 0)
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