+
+/*
+ * Set FD_CLOEXEC on a file descriptor
+ */
+int cloexec(int fd) {
+ int fdflags;
+
+ fdflags = fcntl(fd, F_GETFD);
+ if (fdflags == -1) return -1;
+ return fcntl(fd, F_SETFD, fdflags | FD_CLOEXEC);
+}
+
+FILE *f_open(const Filename *filename, char const *mode, int is_private)
+{
+ if (!is_private) {
+ return fopen(filename->path, mode);
+ } else {
+ int fd;
+ assert(mode[0] == 'w'); /* is_private is meaningless for read,
+ and tricky for append */
+ fd = open(filename->path, O_WRONLY | O_CREAT | O_TRUNC, 0600);
+ if (fd < 0)
+ return NULL;
+ return fdopen(fd, mode);
+ }
+}
+
+FontSpec *fontspec_new(const char *name)
+{
+ FontSpec *f = snew(FontSpec);
+ f->name = dupstr(name);
+ return f;
+}
+FontSpec *fontspec_copy(const FontSpec *f)
+{
+ return fontspec_new(f->name);
+}
+void fontspec_free(FontSpec *f)
+{
+ sfree(f->name);
+ sfree(f);
+}
+int fontspec_serialise(FontSpec *f, void *data)
+{
+ int len = strlen(f->name);
+ if (data)
+ strcpy(data, f->name);
+ return len + 1; /* include trailing NUL */
+}
+FontSpec *fontspec_deserialise(void *vdata, int maxsize, int *used)
+{
+ char *data = (char *)vdata;
+ char *end = memchr(data, '\0', maxsize);
+ if (!end)
+ return NULL;
+ *used = end - data + 1;
+ return fontspec_new(data);
+}