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scanner: fail if there is an I/O error

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If there has been an I/O error returning 0 is a bad idea.

Signed-off-by: Demi Marie Obenour <demi@invisiblethingslab.com>
This commit is contained in:
Demi Marie Obenour 2022-10-25 15:04:00 -04:00
parent 6c4a695045
commit aa85e18dbf
1 changed files with 6 additions and 2 deletions
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8
src/scanner.c
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@ -2037,6 +2037,7 @@ int main(int argc, char *argv[])
bool strict = false; bool strict = false;
bool fail = false; bool fail = false;
int opt; int opt;
int io_err;
enum { enum {
CLIENT_HEADER, CLIENT_HEADER,
SERVER_HEADER, SERVER_HEADER,
@ -2205,7 +2206,10 @@ int main(int argc, char *argv[])
} }
free_protocol(&protocol); free_protocol(&protocol);
fclose(input); io_err = fflush(NULL) || ferror(stdout) || ferror(input);
if (io_err)
fprintf(stderr, "I/O error during processing\n");
return 0; fclose(input);
return io_err;
} }