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Implement and use an xstrdup() function

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Many places in dtc use strdup(), but none of them actually check the
return value to see if the implied allocation succeeded.  This is a
potential bug, which we fix in the patch below by replacing strdup()
with an xstrdup() which in analogy to xmalloc() will quit with a fatal
error if the allocation fails.

I felt the introduciton of util.[ch] was a better choice
for utility oriented code than directly using srcpos.c
for the new string function.

This patch is a re-factoring of Dave Gibson's similar patch.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
This commit is contained in:
Jon Loeliger 2008-10-03 11:12:33 -05:00
parent 68f98d7b8a
commit 879e4d2590
10 changed files with 82 additions and 18 deletions
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6
flattree.c
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@ -601,7 +601,7 @@ static char *flat_read_string(struct inbuf *inb)
len++;
} while ((*p++) != '\0');
str = strdup(inb->ptr);
str = xstrdup(inb->ptr);
inb->ptr += len;
@ -643,7 +643,7 @@ static char *flat_read_stringtable(struct inbuf *inb, int offset)
p++;
}
return strdup(inb->base + offset);
return xstrdup(inb->base + offset);
}
static struct property *flat_read_property(struct inbuf *dtbuf,
@ -710,7 +710,7 @@ static char *nodename_from_path(const char *ppath, const char *cpath)
if (!streq(ppath, "/"))
plen++;
return strdup(cpath + plen);
return xstrdup(cpath + plen);
}
static struct node *unflatten_tree(struct inbuf *dtbuf,