diff options
Diffstat (limited to 'malloc/mtrace.c')
| -rw-r--r-- | malloc/mtrace.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/malloc/mtrace.c b/malloc/mtrace.c index a812dd10f8..505389f3f8 100644 --- a/malloc/mtrace.c +++ b/malloc/mtrace.c @@ -29,7 +29,7 @@ #endif #include <dlfcn.h> - +#include <fcntl.h> #include <stdio.h> #include <string.h> #include <stdlib.h> @@ -268,6 +268,13 @@ mtrace () mallstream = fopen (mallfile != NULL ? mallfile : "/dev/null", "w"); if (mallstream != NULL) { + /* Make sure we close the file descriptor on exec. */ + int flags = __fcntl (fileno (mallstream), F_GETFD, 0); + if (flags >= 0) + { + flags |= FD_CLOEXEC; + __fcntl (fileno (mallstream), F_SETFD, flags); + } /* Be sure it doesn't malloc its buffer! */ setvbuf (mallstream, malloc_trace_buffer, _IOFBF, TRACE_BUFFER_SIZE); fprintf (mallstream, "= Start\n"); |