Check that a filename has been provided [minor]

Fixes the segmentation fault mentioned in samtools#1068.
davmlaw · Sep 20, 2019 · 06d5698 · 06d5698
1 parent b1c4e52
commit 06d5698
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/plugins/fixref.c b/plugins/fixref.c
@@ -294,6 +294,7 @@ static void dbsnp_init(args_t *args, const char *chr)
     args->i2m = kh_init(i2m);
     bcf_srs_t *sr = bcf_sr_init();
     if ( bcf_sr_set_regions(sr, chr, 0) != 0 ) goto done;
+    if ( !args->dbsnp_fname ) error("No ID file specified, use -i/--use-id\n");
     if ( !bcf_sr_add_reader(sr,args->dbsnp_fname) ) error("Failed to open %s: %s\n", args->dbsnp_fname,bcf_sr_strerror(sr->errnum));
     while ( bcf_sr_next_line(sr) )
     {