use a bunch of if statements since it is a few bytes smaller than a switch; also use bb_xfopen() instead of fopen() so comm doesnt segfault when given non-existant files :(
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@ -40,25 +40,21 @@ static int both;
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/* writeline outputs the input given, appropriately aligned according to class */
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static void writeline(char *line, int class)
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{
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switch (class) {
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case 1:
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if (!only_file_1)
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if (class == 1 && !only_file_1)
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return;
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break;
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case 2:
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else if (class == 2) {
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if (!only_file_2)
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return;
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if (only_file_1)
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putchar('\t');
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break;
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case 3:
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}
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else if (class == 3) {
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if (!both)
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return;
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if (only_file_1)
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putchar('\t');
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if (only_file_2)
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putchar('\t');
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break;
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}
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fputs(line, stdout);
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}
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@ -71,7 +67,7 @@ static int cmp_files(char **infiles)
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int i = 0;
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for (i = 0; i < 2; i++) {
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streams[i] = (strcmp(infiles[i], "=") == 0 ? stdin : fopen(infiles[i], "r"));
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streams[i] = (strcmp(infiles[i], "=") == 0 ? stdin : bb_xfopen(infiles[i], "r"));
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fgets(thisline[i], 100, streams[i]);
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}
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