Ahmed S. Darwish wrote:
On Tue, Oct 09, 2007 at 08:55:00AM -0700, Randy Dunlap wrote:
On Tue, 9 Oct 2007 15:03:15 +0200 Ahmed S. Darwish wrote:
Hi Rob,
On Tue, Oct 09, 2007 at 01:25:18AM -0500, Rob Landley wrote:
[...]
FILE * infile;
+
+ srctree = getenv("SRCTREE");
+ if (!srctree) srctree = getcwd(NULL,0);
if (argc != 3) {
usage();
exit(1);
$ man getcwd
char *getcwd(char *buf, size_t size);
As an extension to the POSIX.1 standard, Linux (libc4, libc5, glibc) getcwd()
allocates the buffer dynamically using malloc() if buf is NULL on call.
Shouldn't "srctree" be free()ed in case getenv("SRCTREE") failed ?
What is there to free() at that point? If getenv() fails (i.e.,
the env. variable is not found), it returns NULL.
or do I need another cup of coffee?
I meant if getenv() failed, "srctree = getcwd(NULL, 0)" will let
"srctree" point to a _ malloc()ed _ buffer representing PWD.
As said in the manpage, this buffer needs to be free()ed after usage.
Right or I'm the one who needs that cup of coffee :) ?
so it needs to be freed at program termination, is that what you are
saying? That will happen automatically (along with any open files being
closed, etc.).
--
~Randy
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