wasi: remove unecessary null check - #42819
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com>
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From coverity Local<Array> env_pairs = args[1].As<Array>();
201 const uint32_t envc = env_pairs->Length();
202 options.envp = const_cast<const char**>(new char*[envc + 1]);
203 for (uint32_t i = 0; i < envc; i++) {
204 auto pair = env_pairs->Get(context, i).ToLocalChecked();
205 CHECK(pair->IsString());
206 node::Utf8Value str(env->isolate(), pair);
deref_ptr: Directly dereferencing pointer options.envp.
207 options.envp[i] = strdup(*str);
208 CHECK_NOT_NULL(options.envp[i]);
209 }
...
CID 239687 (#1 of 1): Dereference before null check (REVERSE_INULL)
check_after_deref: Null-checking options.envp suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
239 if (options.envp != nullptr) {
240 for (uint32_t i = 0; options.envp[i]; i++)
241 free(const_cast<char*>(options.envp[i]));
242 delete[] options.envp;
243 }
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lpinca
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Apr 22, 2022
tniessen
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Apr 22, 2022
RaisinTen
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xtx1130
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: nodejs#42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
targos
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: #42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: #42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
danielleadams
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: #42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
targos
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: #42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
targos
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Jul 31, 2022
As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: #42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
guangwong
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As reported by coverity the null check is done after earlier code has already derefenced options.envp. Either we should null check earlier uses or this check is not necessary. Since options.envp is created with new which should throw an exception intead of returning null, it should be safe to assume the null check is not required. Signed-off-by: Michael Dawson <mdawson@devrus.com> PR-URL: nodejs/node#42819 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Darshan Sen <raisinten@gmail.com>
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As reported by coverity the null check is
done after earlier code has already derefenced
options.envp. Either we should null check earlier
uses or this check is not necessary. Since options.envp
is created with new which should throw an
exception intead of returning null, it should
be safe to assume the null check is not required.
Signed-off-by: Michael Dawson mdawson@devrus.com