40 lines
603 B
C
40 lines
603 B
C
#include <stdio.h>
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FILE *openFile(const char *filename);
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void catFile(FILE *file);
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int main(int argc, char *argv[]) {
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if (argc != 2) {
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printf("error: missing file\nusage: cat <filename>\n");
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return -1;
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}
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FILE *file = openFile(argv[1]);
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if (!file) {
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printf("error: file (%s) not found\n", argv[1]);
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return -2;
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}
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catFile(file);
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fclose(file);
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return 0;
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}
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FILE *openFile(const char *filename) {
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FILE *file;
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file = fopen(filename, "r");
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return file;
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}
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void catFile(FILE *file) {
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char buf[512];
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while (fgets(buf, 512, file)) {
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printf("%s", buf);
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}
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}
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