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Groups > comp.lang.c > #15077

Memory leaking in memmove

From ArifulHossain tuhin <etothepowerpi@gmail.com>
Newsgroups comp.lang.c
Subject Memory leaking in memmove
Date 2011-12-28 01:24 -0800
Organization http://groups.google.com
Message-ID <15848343.42.1325064299310.JavaMail.geo-discussion-forums@prdv33> (permalink)

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My application is leaking memory in a memmove call. I have made it sure from coredumps. 

the offending code snippet reads as follows:
unsigned char pad_len;
pad_len = (unsigned char)((random() % RANSTOP ) + RANSTART);
if(pad_len%30 == 0)
pad_len = 9;
if(packet->size > 0){
	memmove(packet->data.buf + pad_len, packet->data.buf, packet->size);
	packet->size += pad_len;
	packet->data.buf[0] = pad_len;
	for(j=1; j< pad_len; j++)
	packet->data.buf[j] = (char)256%j;
	EnDeCrypt(packet->data.buf, packet->size, key, KEYLEN);
}

the packet data structure is decalared as follows:

struct rtp_packet {
    size_t      size;
    ................
    (some fields)
    ................
    struct rtp_packet *next;
    struct rtp_packet *prev;
    union {
	rtp_hdr_t       header;
	unsigned char   buf[8192];
    } data;
}; 

As the data.buf is statically allocated, valgrind does not complain anything about it.
Is it running out of memory? or any other problem?
Any suggestion?

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Thread

Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 01:24 -0800
  Re: Memory leaking in memmove Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-12-28 02:20 -0800
    Re: Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 02:37 -0800
      Re: Memory leaking in memmove Philip Lantz <prl@canterey.us> - 2011-12-28 02:42 -0800
      Re: Memory leaking in memmove Nick Keighley <nick_keighley_nospam@hotmail.com> - 2011-12-28 03:36 -0800
        Re: Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 03:50 -0800
      Re: Memory leaking in memmove Seebs <usenet-nospam@seebs.net> - 2011-12-28 18:17 +0000
  Re: Memory leaking in memmove Philip Lantz <prl@canterey.us> - 2011-12-28 02:36 -0800
    Re: Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 03:57 -0800
      Re: Memory leaking in memmove Dr Nick <3-nospam@temporary-address.org.uk> - 2011-12-28 12:21 +0000
        Re: Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 04:26 -0800
      Re: Memory leaking in memmove jt@toerring.de (Jens Thoms Toerring) - 2011-12-28 12:46 +0000
  Re: Memory leaking in memmove ArifulHossain tuhin <etothepowerpi@gmail.com> - 2011-12-28 05:54 -0800
  Re: Memory leaking in memmove Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-12-28 14:46 +0000
    Re: Memory leaking in memmove Philip Lantz <prl@canterey.us> - 2011-12-28 12:20 -0800
      Re: Memory leaking in memmove Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-12-28 21:50 +0000
  Re: Memory leaking in memmove Barry Schwarz <schwarzb@dqel.com> - 2011-12-28 10:36 -0800

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