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[cat] handle load failure without seg faulting

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This commit is contained in:
Kevin Lange 2012-01-23 14:24:23 -06:00
parent ed31c2cbea
commit ee1ade379f
1 changed files with 3 additions and 0 deletions
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3
userspace/cat.c
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@ -9,6 +9,9 @@ int main(int argc, char ** argv) {
FILE * fd = stdin; FILE * fd = stdin;
if (argc > 1) { if (argc > 1) {
fd = fopen(argv[1], "r"); fd = fopen(argv[1], "r");
if (!fd) {
return 1;
}
} }
size_t length; size_t length;