46 lines
847 B
C++
46 lines
847 B
C++
#include <os/ArgumentParser.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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static void do_cat(StringView path)
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{
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FILE* f;
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if (path == "-") f = stdin;
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else
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{
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f = fopen(path.chars(), "r");
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if (!f)
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{
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perror(path.chars());
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exit(1);
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}
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}
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char buffer[4096];
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while (1)
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{
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size_t nread = fread(buffer, 1, sizeof(buffer), f);
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if (nread == 0) return;
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fwrite(buffer, 1, nread, stdout);
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}
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if (f != stdin) fclose(f);
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}
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int main(int argc, char** argv)
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{
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StringView filename;
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ArgumentParser parser;
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parser.add_positional_argument(filename, "file"_sv, "-"_sv);
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Vector<StringView> extra_files = parser.parse(argc, argv).value();
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do_cat(filename);
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for (auto file : extra_files) { do_cat(file); }
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}
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