42 lines
770 B
C
42 lines
770 B
C
#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(FILE* f)
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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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}
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int main(int argc, char** argv)
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{
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FILE* f;
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if (argc < 2) { do_cat(stdin); }
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else
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{
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for (int i = 1; i < argc; i++)
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{
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if (!strcmp(argv[i], "-")) f = stdin;
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else
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{
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f = fopen(argv[i], "r");
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if (!f)
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{
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perror(argv[i]);
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return 1;
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}
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}
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do_cat(f);
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if (f != stdin) fclose(f);
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}
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}
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}
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