termux-packages/x11-packages/i3/posix-shm-implementation.patch

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diff -uNr i3-4.16/i3-dump-log/main.c i3-4.16.mod/i3-dump-log/main.c
--- i3-4.16/i3-dump-log/main.c 2018-11-04 15:47:34.000000000 +0200
+++ i3-4.16.mod/i3-dump-log/main.c 2019-03-20 17:12:26.815477041 +0200
@@ -91,6 +91,44 @@
va_end(args);
}
+static int shm_open(const char *name, int oflag, mode_t mode) {
+ size_t namelen;
+ char *fname;
+ int fd;
+
+ /* Construct the filename. */
+ while (name[0] == '/') ++name;
+
+ if (name[0] == '\0') {
+ /* The name "/" is not supported. */
+ errno = EINVAL;
+ return -1;
+ }
+
+ namelen = strlen(name);
+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
+
+ fd = open(fname, oflag, mode);
+ if (fd != -1) {
+ /* We got a descriptor. Now set the FD_CLOEXEC bit. */
+ int flags = fcntl(fd, F_GETFD, 0);
+ flags |= FD_CLOEXEC;
+ flags = fcntl(fd, F_SETFD, flags);
+
+ if (flags == -1) {
+ /* Something went wrong. We cannot return the descriptor. */
+ int save_errno = errno;
+ close(fd);
+ fd = -1;
+ errno = save_errno;
+ }
+ }
+
+ return fd;
+}
+
int main(int argc, char *argv[]) {
int o, option_index = 0;
bool verbose = false;
diff -uNr i3-4.16/src/log.c i3-4.16.mod/src/log.c
--- i3-4.16/src/log.c 2018-11-04 15:47:34.000000000 +0200
+++ i3-4.16.mod/src/log.c 2019-03-20 17:11:22.943719028 +0200
@@ -118,6 +118,65 @@
atexit(purge_zerobyte_logfile);
}
+static int shm_unlink(const char *name) {
+ size_t namelen;
+ char *fname;
+
+ /* Construct the filename. */
+ while (name[0] == '/') ++name;
+
+ if (name[0] == '\0') {
+ /* The name "/" is not supported. */
+ errno = EINVAL;
+ return -1;
+ }
+
+ namelen = strlen(name);
+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
+
+ return unlink(fname);
+}
+
+static int shm_open(const char *name, int oflag, mode_t mode) {
+ size_t namelen;
+ char *fname;
+ int fd;
+
+ /* Construct the filename. */
+ while (name[0] == '/') ++name;
+
+ if (name[0] == '\0') {
+ /* The name "/" is not supported. */
+ errno = EINVAL;
+ return -1;
+ }
+
+ namelen = strlen(name);
+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
+
+ fd = open(fname, oflag, mode);
+ if (fd != -1) {
+ /* We got a descriptor. Now set the FD_CLOEXEC bit. */
+ int flags = fcntl(fd, F_GETFD, 0);
+ flags |= FD_CLOEXEC;
+ flags = fcntl(fd, F_SETFD, flags);
+
+ if (flags == -1) {
+ /* Something went wrong. We cannot return the descriptor. */
+ int save_errno = errno;
+ close(fd);
+ fd = -1;
+ errno = save_errno;
+ }
+ }
+
+ return fd;
+}
+
/*
* Opens the logbuffer.
*
diff -uNr i3-4.16/src/main.c i3-4.16.mod/src/main.c
--- i3-4.16/src/main.c 2018-11-04 15:47:34.000000000 +0200
+++ i3-4.16.mod/src/main.c 2019-03-20 17:08:46.144848996 +0200
@@ -155,6 +155,27 @@
}
}
+static int shm_unlink(const char *name) {
+ size_t namelen;
+ char *fname;
+
+ /* Construct the filename. */
+ while (name[0] == '/') ++name;
+
+ if (name[0] == '\0') {
+ /* The name "/" is not supported. */
+ errno = EINVAL;
+ return -1;
+ }
+
+ namelen = strlen(name);
+ fname = (char *) alloca(sizeof("@TERMUX_PREFIX@/tmp/") - 1 + namelen + 1);
+ memcpy(fname, "@TERMUX_PREFIX@/tmp/", sizeof("@TERMUX_PREFIX@/tmp/") - 1);
+ memcpy(fname + sizeof("@TERMUX_PREFIX@/tmp/") - 1, name, namelen + 1);
+
+ return unlink(fname);
+}
+
/*
* Exit handler which destroys the main_loop. Will trigger cleanup handlers.
*