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On Linux realloc(0xg00d, 0) may return NULL without being an error

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This commit is contained in:
Pierre Pronchery 2010-05-01 03:04:29 +00:00
parent e2c3b06bda
commit a48cbb2c4c
1 changed files with 9 additions and 3 deletions
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12
src/gsm.c
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@ -1200,7 +1200,9 @@ static int _gsm_parse(GSM * gsm)
gsm->rd_buf_cnt -= i;
memmove(gsm->rd_buf, &gsm->rd_buf[i], gsm->rd_buf_cnt);
if((p = realloc(gsm->rd_buf, gsm->rd_buf_cnt)) != NULL)
gsm->rd_buf = p; /* we can ignore errors */
gsm->rd_buf = p; /* we can ignore errors... */
else if(gsm->rd_buf_cnt == 0)
gsm->rd_buf = NULL; /* ...except when it's not one */
i = 0;
}
if(gsm->mode == GSM_MODE_PDU)
@ -1223,7 +1225,9 @@ static int _parse_pdu(GSM * gsm)
gsm->rd_buf_cnt -= i;
memmove(gsm->rd_buf, &gsm->rd_buf[i], gsm->rd_buf_cnt);
if((p = realloc(gsm->rd_buf, gsm->rd_buf_cnt)) != NULL)
gsm->rd_buf = p; /* we can ignore errors */
gsm->rd_buf = p; /* we can ignore errors... */
else if(gsm->rd_buf_cnt == 0)
gsm->rd_buf = NULL; /* ...except when it's not one */
return 0;
}
@ -1837,7 +1841,9 @@ static gboolean _on_watch_can_write(GIOChannel * source, GIOCondition condition,
gsm->wr_buf_cnt -= cnt;
memmove(gsm->wr_buf, &gsm->wr_buf[cnt], gsm->wr_buf_cnt);
if((p = realloc(gsm->wr_buf, gsm->wr_buf_cnt)) != NULL)
gsm->wr_buf = p; /* we can ignore errors */
gsm->wr_buf = p; /* we can ignore errors... */
else if(gsm->wr_buf_cnt == 0)
gsm->wr_buf = NULL; /* ...except when it's not one */
}
switch(status)
{