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35 lines
736 B
35 lines
736 B
5 years ago
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <errno.h>
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#ifndef _MSC_VER
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#include <unistd.h>
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#endif
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int main(int argc, char **argv) {
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char data[10];
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int fd, size;
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if (argc != 2) {
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fprintf(stderr, "Incorrect number of arguments, got %i\n", argc);
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return 1;
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}
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fd = open(argv[1], O_RDONLY);
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if (fd < 0) {
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fprintf(stderr, "First argument is wrong.\n");
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return 1;
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}
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size = read(fd, data, 8);
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if (size < 0) {
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fprintf(stderr, "Failed to read: %s\n", strerror(errno));
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return 1;
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}
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if (strncmp(data, "contents", 8) != 0) {
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fprintf(stderr, "Contents don't match, got %s\n", data);
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return 1;
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}
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return 0;
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}
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