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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:51:24 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 09:51:24 +0000
commitf7548d6d28c313cf80e6f3ef89aed16a19815df1 (patch)
treea3f6f2a3f247293bee59ecd28e8cd8ceb6ca064a /src/lib/fd-util.h
parentInitial commit. (diff)
downloaddovecot-upstream.tar.xz
dovecot-upstream.zip
Adding upstream version 1:2.3.19.1+dfsg1.upstream/1%2.3.19.1+dfsg1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/lib/fd-util.h')
-rw-r--r--src/lib/fd-util.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/lib/fd-util.h b/src/lib/fd-util.h
new file mode 100644
index 0000000..54bdd63
--- /dev/null
+++ b/src/lib/fd-util.h
@@ -0,0 +1,26 @@
+#ifndef FD_UTIL_H
+#define FD_UTIL_H
+
+/* Change close-on-exec flag of fd. */
+void fd_close_on_exec(int fd, bool set);
+
+/* Verify that fds in given range don't exist. */
+void fd_debug_verify_leaks(int first_fd, int last_fd);
+
+/* Set file descriptor to blocking/nonblocking state */
+void fd_set_nonblock(int fd, bool nonblock);
+
+/* Close fd_in and fd_out, unless they're already -1. They can point to the
+ same fd, in which case they're closed only once. If they point to stdin
+ or stdout, they're replaced with /dev/null. */
+void fd_close_maybe_stdio(int *fd_in, int *fd_out);
+
+/* Close the fd and set it to -1. This assert-crashes if fd == 0, and is a
+ no-op if fd == -1. Normally fd == 0 would happen only if an uninitialized
+ fd is attempted to be closed, which is a bug. */
+void i_close_fd_path(int *fd, const char *path, const char *arg,
+ const char *func, const char *file, int line);
+#define i_close_fd_path(fd, path) i_close_fd_path((fd), (path), #fd, __func__, __FILE__, __LINE__)
+#define i_close_fd(fd) i_close_fd_path((fd), NULL)
+
+#endif