[hackers] [sbase] Check mmap() return value and unmap at the end || sin

From: <git_AT_suckless.org>
Date: Mon, 20 Jan 2014 12:28:25 +0100

commit fe6144793fe7d2a4d674204f675d2e48a2fe06d2
Author: sin <sin_AT_2f30.org>
Date: Mon Jan 20 11:25:57 2014 +0000

    Check mmap() return value and unmap at the end

diff --git a/tr.c b/tr.c
index 8cca430..a4ddef9 100644
--- a/tr.c
+++ b/tr.c
_AT_@ -124,6 +124,8 @@ main(int argc, char *argv[])
 
         mappings = (wchar_t *)mmap(NULL, 0x110000 * sizeof(wchar_t),
                                    PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0);
+ if (mappings == MAP_FAILED)
+ eprintf("mmap:");
 
         ARGBEGIN {
         default:
_AT_@ -147,5 +149,7 @@ main(int argc, char *argv[])
         if(ferror(stdin))
                 eprintf("<stdin>: read error:");
 
+ munmap(mappings, 0x110000 * sizeof(wchar_t));
+
         return EXIT_SUCCESS;
 }
Received on Mon Jan 20 2014 - 12:28:25 CET