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upas/Mail: check if plumb attrs are nil

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This commit is contained in:
Ori Bernstein 2022-07-13 21:01:11 +00:00
parent 62a4e64d31
commit 8f1954c0dd
1 changed files with 2 additions and 0 deletions
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2
sys/src/cmd/upas/Mail/mbox.c
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@ -802,6 +802,8 @@ changemesg(Plumbmsg *pm)
digest = plumblookup(pm->attr, "digest");
action = plumblookup(pm->attr, "mailtype");
if(digest == nil || action == nil)
return;
if(strcmp(action, "new") == 0){
if((m = load(pm->data, digest, 1)) == nil)
return;