37 lines
634 B
C
37 lines
634 B
C
/* TODO:
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1. read filename from argv[1]
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2. write errors to stderr
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3. open file for reading
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4. character by character forward to stdout
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*/
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#include <stdio.h>
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#define MAX_LEN 500
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int main(int argc, char *argv[]) {
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FILE *file;
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int c;
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fprintf(stderr, "cat <filename>\n");
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if (argc != 2) {
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fprintf(stderr, "ERROR: invalid input\n");
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return -1;
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}
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file = fopen(argv[1], "r");
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if (!file) {
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fprintf(stderr, "ERROR: unable to open file\n");
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return -1;
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}
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while ((c = fgetc(file)) != EOF) {
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putc(c, stdout);
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}
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fprintf(stderr, "Completed forward to stdout");
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return 0;
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}
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