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libgaim/protocols/zephyr/ZPeekPkt.c@f3d13f21350c

libgaim/protocols/zephyr/ZPeekPkt.c

Tue, 26 Sep 2006 17:38:09 +0000

author

Richard Laager <rlaager@pidgin.im>

date

Tue, 26 Sep 2006 17:38:09 +0000

changeset 14686

f3d13f21350c

parent 14254

77edc7a6191a

child 20470

77693555855f

permissions

-rw-r--r--

[gaim-migrate @ 17356]
After the comments on gaim-devel about 'bad' code, I looked into the function referenced. It appears that yahoo_buddy_icon_upload_connected() is only called as a callback. It's registered from yahoo_buddy_icon_upload(). yahoo_buddy_icon_upload() is only called twice. In neither case can a NULL make it down to yahoo_buddy_icon_upload_connected(). As this is an exceptional case rather than a normal one, a g_return_if_fail() is more appropriate. That adds logging, makes the intent clearer, and will help the Coverity software detect violations of this assumption.

/* This file is part of the Project Athena Zephyr Notification System.
 * It contains source for ZPeekPacket function.
 *
 *	Created by:	Robert French
 *
 *	Copyright (c) 1987 by the Massachusetts Institute of Technology.
 *	For copying and distribution information, see the file
 *	"mit-copyright.h". 
 */

#include "internal.h"

Code_t ZPeekPacket(buffer, ret_len, from)
    char **buffer;
    int *ret_len;
    struct sockaddr_in *from;
{
    Code_t retval;
    struct _Z_InputQ *nextq;
    
    if ((retval = Z_WaitForComplete()) != ZERR_NONE)
	return (retval);

    nextq =Z_GetFirstComplete();

    *ret_len = nextq->packet_len;
    
    if (!(*buffer = (char *) malloc((unsigned) *ret_len)))
	return (ENOMEM);

    (void) memcpy(*buffer, nextq->packet, *ret_len);

    if (from)
	*from = nextq->from;
	
    return (ZERR_NONE);
}