mirror of
https://github.com/termux/termux-packages.git
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ae268ce396
* Remove no-hard-link.patch
See eb64ceac7e
* Enable contrib tablefunc
* Enable more make parallel builds
* Fix libxml build issue
69 lines
1.9 KiB
Diff
69 lines
1.9 KiB
Diff
--- a/src/backend/storage/ipc/dsm_impl.c
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+++ b/src/backend/storage/ipc/dsm_impl.c
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@@ -69,6 +69,65 @@
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#include "utils/guc.h"
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#include "utils/memutils.h"
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+static int shm_open(const char *name, int oflag, mode_t mode) {
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+ size_t namelen;
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+ char *fname;
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+ int fd;
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+
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+ /* Construct the filename. */
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+ while (name[0] == '/') ++name;
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+
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+ if (name[0] == '\0') {
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+ /* The name "/" is not supported. */
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+ errno = EINVAL;
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+ return -1;
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+ }
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+
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+ namelen = strlen(name);
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+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
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+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
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+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
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+
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+ fd = open(fname, oflag, mode);
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+ if (fd != -1) {
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+ /* We got a descriptor. Now set the FD_CLOEXEC bit. */
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+ int flags = fcntl(fd, F_GETFD, 0);
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+ flags |= FD_CLOEXEC;
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+ flags = fcntl(fd, F_SETFD, flags);
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+
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+ if (flags == -1) {
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+ /* Something went wrong. We cannot return the descriptor. */
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+ int save_errno = errno;
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+ close(fd);
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+ fd = -1;
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+ errno = save_errno;
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+ }
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+ }
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+
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+ return fd;
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+}
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+
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+static int shm_unlink(const char *name) {
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+ size_t namelen;
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+ char *fname;
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+
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+ /* Construct the filename. */
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+ while (name[0] == '/') ++name;
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+
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+ if (name[0] == '\0') {
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+ /* The name "/" is not supported. */
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+ errno = EINVAL;
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+ return -1;
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+ }
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+
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+ namelen = strlen(name);
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+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
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+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
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+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
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+
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+ return unlink(fname);
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+}
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+
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#ifdef USE_DSM_POSIX
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static bool dsm_impl_posix(dsm_op op, dsm_handle handle, Size request_size,
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void **impl_private, void **mapped_address,
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