X-Git-Url: https://gapil.gnulinux.it/gitweb/?p=gapil.git;a=blobdiff_plain;f=listati%2FInitFile.c;fp=listati%2FInitFile.c;h=e7d010ac0ae101ab399428d03c7018f752117576;hp=0000000000000000000000000000000000000000;hb=844ea3e96c657de0e887fd3ebce90d1dff7103ad;hpb=4be39dd3718d708ccff65b01a8f634e05b56f3c9

diff --git a/listati/InitFile.c b/listati/InitFile.c
new file mode 100644
index 0000000..e7d010a
--- /dev/null
+++ b/listati/InitFile.c
@@ -0,0 +1,24 @@
+ssize_t InitFile(int dirfd, const char *file, const char *buf, size_t size) 
+{
+    int fd, written, res;
+    char path[PATH_MAX];
+   
+    fd = openat(dirfd, ".", O_TMPFILE|O_RDWR, S_IRUSR|S_IWUSR);
+    if (fd < 0) {
+	perror("Cannot get temporary filedescritor");
+	return(fd);
+    }
+    written = FullWrite(fd, buf, size);
+    if (written < 0) {
+	perror("error writing on tmp file");
+	return(res);
+    }
+    snprintf(path, PATH_MAX, "/proc/self/fd/%d", fd);
+    res = linkat(AT_FDCWD, path, dirfd, file, AT_SYMLINK_FOLLOW);
+    if (res < 0) {
+	perror("error linking the file");
+	return(res);
+    } else {
+	return written;
+    }
+}