utils-std

commit: 5d7fc0ed50c184dc6a9ced8e9d36cc931b5eb5ac
parent 3f5fd38aa20a56a6c936fd441fcb88ba05498b76
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Mon, 14 Apr 2025 01:36:33 +0200

cmd/getconf: don't write the terminating null byte from confstr()

Also use the return value of the second call to confstr()
as length in case the buffer didn't entirely get filled.

Diffstat:
M
cmd/getconf.c
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/getconf.c b/cmd/getconf.c
@@ -77,7 +77,7 @@ print_system_var(const char *var)
 			return 0;
 		}
 
-		fwrite(buf, buflen, 1, stdout);
+		fwrite(buf, (ret - 1), 1, stdout);
 		free(buf);
 		return 0;
 	}
@@ -250,7 +250,7 @@ main(int argc, char *argv[])
 			}
 
 			printf("%s: ", confstr_vars[i].name);
-			fwrite(buf, buflen_ret, 1, stdout);
+			fwrite(buf, (ret - 1), 1, stdout);
 			printf("\n");
 		}