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patch 8.2.4073: Coverity warns for using NULL pointer

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Problem:    Coverity warns for using NULL pointer.
Solution:   Bail out when running out of memory. Check for running over end of
            a string.
This commit is contained in:
Bram Moolenaar
2022-01-13 12:05:09 +00:00
parent d041f4208b
commit 54598066ca
2 changed files with 6 additions and 4 deletions
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8
src/userfunc.c
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@@ -1674,12 +1674,10 @@ deref_func_name(
void
emsg_funcname(char *ermsg, char_u *name)
{
char_u *p;
char_u *p = name;
if (*name == K_SPECIAL)
if (name[0] == K_SPECIAL && name[1] != NUL && name[2] != NUL)
p = concat_str((char_u *)"<SNR>", name + 3);
else
p = name;
semsg(_(ermsg), p);
if (p != name)
vim_free(p);
@@ -4154,6 +4152,8 @@ define_function(exarg_T *eap, char_u *name_arg, garray_T *lines_to_free)
else
eap->skip = TRUE;
}
if (name == NULL)
goto ret_free; // out of memory
// For "export def FuncName()" in an autoload script the function name
// is stored with the legacy autoload name "dir#script#FuncName" so