change: print to stderr and stdout

diff --git a/src/discspan.c b/src/discspan.c
index 21f4a8761c17375fb05ecc85b5395838837e4dae..abbaddbe6f3f20c7f151aad8795328b7c710a1ff 100644 (file)
--- a/src/discspan.c
+++ b/src/discspan.c
@@ -51,7 +51,7 @@ param_t read_argument(int argc, char *argv[])
                        exit(0);
                        break;
                default:
-                       printf("WARNING: %c unknown option\n", optopt);
+                       fprintf(stderr, "WARNING: %c unknown option\n", optopt);
                        break;
                }
        }
@@ -74,7 +74,7 @@ void print_human_read_size(const char *output, medium_t medium)
        if (i > sizeof(einheit)/sizeof(einheit[0]))
                i = 0;
 
-       printf("free space on %s: %lld bytes (%lld %c)\n", output,
+       fprintf(stdout, "free space on %s: %lld bytes (%lld %c)\n", output,
                        medium.freespace, humanread, einheit[i]);
 }
 
@@ -85,12 +85,13 @@ int main(int argc, char *argv[])
        if (parameter.input == NULL
                        || parameter.output == NULL
                        || parameter.split < 2048) {
+               fprintf(stderr, "ERROR: missing arguments");
                useage();
                exit(1);
        }
 
        if (access(parameter.input, F_OK) < 0) {
-               printf("ERROR: %s file does not exists\n", parameter.input);
+               fprintf(stderr, "ERROR: %s file does not exists\n", parameter.input);
                exit(1);
        }