diff --git a/libbb/Kbuild b/libbb/Kbuild
index 0dd8c2b..87c09bd 100644
--- a/libbb/Kbuild
+++ b/libbb/Kbuild
@@ -9,7 +9,7 @@
 	compare_string_array.o concat_path_file.o copy_file.o copyfd.o \
 	crc32.o create_icmp_socket.o create_icmp6_socket.o \
 	device_open.o dump.o error_msg.o error_msg_and_die.o \
-	find_pid_by_name.o find_root_device.o fgets_str.o \
+	find_pid_by_name.o find_root_device.o xmalloc_fgets_str.o \
 	full_write.o get_last_path_component.o get_line_from_file.o \
 	herror_msg.o herror_msg_and_die.o \
 	human_readable.o inet_common.o inode_hash.o isdirectory.o \
diff --git a/libbb/fclose_nonstdin.c b/libbb/fclose_nonstdin.c
index be986d1..951ab30 100644
--- a/libbb/fclose_nonstdin.c
+++ b/libbb/fclose_nonstdin.c
@@ -15,7 +15,7 @@
 #include <stdio.h>
 #include <libbb.h>
 
-int bb_fclose_nonstdin(FILE *f)
+int fclose_if_not_stdin(FILE *f)
 {
 	if (f != stdin) {
 		return fclose(f);
diff --git a/libbb/fgets_str.c b/libbb/fgets_str.c
index 41370d1..1bc6c3b 100644
--- a/libbb/fgets_str.c
+++ b/libbb/fgets_str.c
@@ -8,17 +8,12 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
 #include "libbb.h"
 
 /* Read up to (and including) TERMINATING_STRING from FILE and return it.
  * Return NULL on EOF.  */
 
-char *fgets_str(FILE *file, const char *terminating_string)
+char *xmalloc_fgets_str(FILE *file, const char *terminating_string)
 {
 	char *linebuf = NULL;
 	const int term_length = strlen(terminating_string);
@@ -36,7 +31,8 @@
 
 		/* grow the line buffer as necessary */
 		while (idx > linebufsz - 2) {
-			linebuf = xrealloc(linebuf, linebufsz += 1000);
+			linebufsz += 200;
+			linebuf = xrealloc(linebuf, linebufsz);
 		}
 
 		linebuf[idx] = ch;
diff --git a/libbb/wfopen.c b/libbb/wfopen.c
index 9d66328..26e6a13 100644
--- a/libbb/wfopen.c
+++ b/libbb/wfopen.c
@@ -7,14 +7,12 @@
  * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <stdio.h>
-#include <errno.h>
 #include "libbb.h"
 
-FILE *bb_wfopen(const char *path, const char *mode)
+FILE *fopen_or_warn(const char *path, const char *mode)
 {
-	FILE *fp;
-	if ((fp = fopen(path, mode)) == NULL) {
+	FILE *fp = fopen(path, mode);
+	if (!fp) {
 		bb_perror_msg("%s", path);
 		errno = 0;
 	}
diff --git a/libbb/wfopen_input.c b/libbb/wfopen_input.c
index d764f1d..3da855f 100644
--- a/libbb/wfopen_input.c
+++ b/libbb/wfopen_input.c
@@ -14,18 +14,17 @@
  * Note: We also consider "" to main stdin (for 'cmp' at least).
  */
 
-#include <stdio.h>
-#include <sys/stat.h>
-#include <libbb.h>
+#include "libbb.h"
 
-FILE *bb_wfopen_input(const char *filename)
+FILE *fopen_or_warn_stdin(const char *filename)
 {
 	FILE *fp = stdin;
 
-	if ((filename != bb_msg_standard_input)
-		&& filename[0] && ((filename[0] != '-') || filename[1])
+	if (filename != bb_msg_standard_input
+	 && filename[0]
+	 && (filename[0] != '-' || filename[1])
 	) {
-		fp = bb_wfopen(filename, "r");
+		fp = fopen_or_warn(filename, "r");
 	}
 
 	return fp;
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index c5e18c3..1144a67 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -341,6 +341,7 @@
 // close that file.
 void xprint_and_close_file(FILE *file)
 {
+	fflush(stdout);
 	// copyfd outputs error messages for us.
 	if (bb_copyfd_eof(fileno(file), 1) == -1)
 		exit(xfunc_error_retval);