# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1650201303 -7200
# Node ID f285dd00704e2206a5b4d3c5d3cc29e9e2ff61e4
# Parent  6a015080f04013d11a76d84d6d672ba7bd017320
patch 8.2.4772: old Coverity warning for not checking ftell() return value

Commit: https://github.com/vim/vim/commit/3df8f6e353eeaf24bb5fe3769ed07c03791bb58e
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sun Apr 17 14:01:51 2022 +0100

    patch 8.2.4772: old Coverity warning for not checking ftell() return value

    Problem:    Old Coverity warning for not checking ftell() return value.
    Solution:   Check return value of fseek() and ftell().

diff --git a/src/misc1.c b/src/misc1.c
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -2337,16 +2337,18 @@ get_cmd_output(
     fd = mch_fopen((char *)tempname, READBIN);
 # endif
 
-    if (fd == NULL)
+    // Not being able to seek means we can't read the file.
+    if (fd == NULL
+	    || fseek(fd, 0L, SEEK_END) == -1
+	    || (len = ftell(fd)) == -1		// get size of temp file
+	    || fseek(fd, 0L, SEEK_SET) == -1)	// back to the start
     {
-	semsg(_(e_cant_open_file_str), tempname);
+	semsg(_(e_cannot_read_from_str), tempname);
+	if (fd != NULL)
+	    fclose(fd);
 	goto done;
     }
 
-    fseek(fd, 0L, SEEK_END);
-    len = ftell(fd);		    // get size of temp file
-    fseek(fd, 0L, SEEK_SET);
-
     buffer = alloc(len + 1);
     if (buffer != NULL)
 	i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd);
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4772,
+/**/
     4771,
 /**/
     4770,