51 lines
709 B
C++
51 lines
709 B
C++
#include <stdio.h>
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bool cat_file(FILE* fp)
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{
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char buffer[1024];
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size_t n_read;
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while ((n_read = fread(buffer, 1, sizeof(buffer) - 1, fp)) > 0)
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{
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buffer[n_read] = '\0';
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fputs(buffer, stdout);
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}
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if (ferror(fp))
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{
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perror("fread");
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return false;
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}
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return true;
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}
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int main(int argc, char** argv)
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{
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int ret = 0;
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printf("argc %d, argv %p\n", argc, argv);
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for (int i = 0; i < argc; i++)
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printf("%s\n", argv[i]);
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if (argc > 1)
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{
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for (int i = 1; i < argc; i++)
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{
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FILE* fp = fopen(argv[i], "r");
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if (fp == nullptr)
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{
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perror(argv[i]);
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ret = 1;
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continue;
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}
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if (cat_file(fp))
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ret = 1;
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fclose(fp);
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}
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}
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else
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{
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ret = cat_file(stdin);
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}
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return ret;
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}
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