[PATCH 4/5] Do not call posix_fallocate() if unavailable

uClibc does not implement posix_fallocate(), and posix_fallocate() is mostly only an hint to the kernel that we will need such or such amount of space inside a file. Adding a check around the posix_fallocate() call so it is only called when it is available. Signed-off-by: Clayton Shotwell <clayton.shotwell(a)rockwellcollins.com&gt; --- audisp/plugins/remote/queue.c | 2 ++ configure.ac | 1 + 2 files changed, 3 insertions(+) diff --git a/audisp/plugins/remote/queue.c b/audisp/plugins/remote/queue.c index 79eebd7..971e4e4 100644 --- a/audisp/plugins/remote/queue.c +++ b/audisp/plugins/remote/queue.c @@ -215,9 +215,11 @@ static int q_open_file(struct queue *q, const char *path) return -1; if (q_sync(q) != 0) return -1; +#ifdef HAVE_POSIX_FALLOCATE if (posix_fallocate(q->fd, 0, (q->num_entries + 1) * q->entry_size) != 0) return -1; +#endif } else { uint32_t file_entries; if (full_pread(q->fd, &fh, sizeof(fh), 0) != 0) diff --git a/configure.ac b/configure.ac index 57aec03..c14ec80 100644 --- a/configure.ac +++ b/configure.ac @@ -67,6 +67,7 @@ AC_CHECK_DECLS([MS_DIRSYNC], [], [], [[#include <sys/mount.h>]]) AC_CHECK_DECLS([AUDIT_FEATURE_VERSION], [], [], [[#include <linux/audit.h>]]) AC_CHECK_DECLS([AUDIT_VERSION_BACKLOG_WAIT_TIME], [], [], [[#include <linux/audit.h>]]) AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>]) +AC_CHECK_FUNCS([posix_fallocate]) ALLWARNS="" ALLDEBUG="-g" -- 1.9.1