From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 14 Apr 2024 16:06:15 +0200
Subject: Support POSIX basename() from musl libc

Musl libc 1.2.5 removed the definition of the basename() function from
string.h and only provides it in libgen.h as the POSIX standard
defines it.

This change fixes compilation with musl libc 1.2.5.
````
build_dir/target-mips_24kc_musl/rtty-mbedtls/rtty-8.1.1/src/file.c:156:24: error: implicit declaration of function 'basename' [-Werror=implicit-function-declaration]
  156 |     const char *name = basename(path);
      |                        ^~~~~~~~
````

basename() modifies the input string, copy it first with strdup(), If
strdup() returns NULL the code will handle it.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 src/file.c    | 8 +++++++-
 src/filectl.c | 6 +++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

--- a/src/file.c
+++ b/src/file.c
@@ -29,6 +29,7 @@
 #include <unistd.h>
 #include <mntent.h>
 #include <inttypes.h>
+#include <libgen.h>
 #include <sys/statvfs.h>
 #include <linux/limits.h>
 #include <sys/sysinfo.h>
@@ -153,13 +154,17 @@ static int start_upload_file(struct file
 {
     struct tty *tty = container_of(ctx, struct tty, file);
     struct rtty *rtty = tty->rtty;
-    const char *name = basename(path);
+    const char *name;
     struct stat st;
     int fd;
+    char *dirc;
 
+    dirc = strdup(path);
+    name = basename(dirc);
     fd = open(path, O_RDONLY);
     if (fd < 0) {
         log_err("open '%s' fail: %s\n", path, strerror(errno));
+        free(dirc);
         return -1;
     }
 
@@ -177,6 +182,7 @@ static int start_upload_file(struct file
     ctx->remain_size = st.st_size;
 
     log_info("upload file: %s, size: %" PRIu64 "\n", path, (uint64_t)st.st_size);
+    free(dirc);
 
     return 0;
 }
--- a/src/filectl.c
+++ b/src/filectl.c
@@ -30,6 +30,7 @@
 #include <errno.h>
 #include <stdio.h>
 #include <fcntl.h>
+#include <libgen.h>
 
 #include "utils.h"
 #include "file.h"
@@ -75,6 +76,7 @@ static void handle_file_control_msg(int
 {
     struct file_control_msg msg;
     struct buffer b = {};
+    char *dirc;
 
     while (true) {
         if (buffer_put_fd(&b, fd, -1, NULL) < 0)
@@ -90,7 +92,9 @@ static void handle_file_control_msg(int
             if (sfd > -1) {
                 close(sfd);
                 gettimeofday(&start_time, NULL);
-                printf("Transferring '%s'...Press Ctrl+C to cancel\n", basename(path));
+                dirc = strdup(path);
+                printf("Transferring '%s'...Press Ctrl+C to cancel\n", basename(dirc));
+                free(dirc);
 
                 if (total_size == 0) {
                     printf("  100%%    0 B     0s\n");