diff options
| -rw-r--r-- | streamer.c | 26 |
1 files changed, 22 insertions, 4 deletions
@@ -1578,29 +1578,47 @@ error: int streamer_dsp_chain_save_internal (const char *fname, ddb_dsp_context_t *chain) { - FILE *fp = fopen (fname, "w+t"); + char tempfile[PATH_MAX]; + snprintf (tempfile, sizeof (tempfile), "%s.tmp", fname); + FILE *fp = fopen (tempfile, "w+t"); if (!fp) { return -1; } ddb_dsp_context_t *ctx = chain; while (ctx) { - fprintf (fp, "%s %d {\n", ctx->plugin->plugin.id, (int)ctx->enabled); + if (fprintf (fp, "%s %d {\n", ctx->plugin->plugin.id, (int)ctx->enabled) < 0) { + fprintf (stderr, "write to %s failed (%s)\n", tempfile, strerror (errno)); + goto error; + } if (ctx->plugin->num_params) { int n = ctx->plugin->num_params (); int i; for (i = 0; i < n; i++) { char v[1000]; ctx->plugin->get_param (ctx, i, v, sizeof (v)); - fprintf (fp, "\t%s\n", v); + if (fprintf (fp, "\t%s\n", v) < 0) { + fprintf (stderr, "write to %s failed (%s)\n", tempfile, strerror (errno)); + goto error; + } } } - fprintf (fp, "}\n"); + if (fprintf (fp, "}\n") < 0) { + fprintf (stderr, "write to %s failed (%s)\n", tempfile, strerror (errno)); + goto error; + } ctx = ctx->next; } fclose (fp); + if (rename (tempfile, fname) != 0) { + fprintf (stderr, "dspconfig rename %s -> %s failed: %s\n", tempfile, fname, strerror (errno)); + return -1; + } return 0; +error: + fclose (fp); + return -1; } int |