uniq: fix argv check
uniq inputfile failed with "extra argument"
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7d36a35649
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4092196fdc
6
uniq.c
6
uniq.c
@ -52,6 +52,9 @@ main(int argc, char *argv[])
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usage();
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} ARGEND;
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if (argc > 2)
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usage();
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if (argc == 0) {
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uniq(stdin, stdout);
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} else if (argc >= 1) {
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@ -61,8 +64,7 @@ main(int argc, char *argv[])
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if (strcmp(argv[1], "-") &&
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!(ofp = fopen(argv[1], "w")))
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eprintf("fopen %s:", argv[1]);
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} else
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eprintf("extra argument: %s\n", argv[2]);
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}
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uniq(fp, ofp);
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if (fp != stdin)
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fclose(fp);
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