From e751227dc6076d1c26ff86f89b49e1961cf48bce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Thu, 20 Feb 2020 18:45:42 +0100
Subject: [PATCH] client: allocate current working directory buffer dynamically

---
 client.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/client.c b/client.c
index e00adc40..78750442 100644
--- a/client.c
+++ b/client.c
@@ -151,8 +151,19 @@ main(int argc, char *const *argv)
         }
     }
 
-    char cwd[4096];
-    getcwd(cwd, sizeof(cwd));
+    char *cwd = NULL;
+    {
+        errno = 0;
+        size_t buf_len = 1024;
+        do {
+            cwd = realloc(cwd, buf_len);
+            if (getcwd(cwd, buf_len) == NULL && errno != ERANGE) {
+                LOG_ERRNO("failed to get current working directory");
+                goto err;
+            }
+            buf_len *= 2;
+        } while (errno == ERANGE);
+    }
     const uint16_t cwd_len = strlen(cwd) + 1;
 
     const uint16_t term_len = strlen(term) + 1;
@@ -232,6 +243,7 @@ main(int argc, char *const *argv)
         ret = exit_code;
 
 err:
+    free(cwd);
     if (fd != -1)
         close(fd);
     log_deinit();