35 lines
690 B
C
35 lines
690 B
C
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/* cat.c
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Prints files specified on command line to the console. */
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#include <stdio.h>
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#include <syscall.h>
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int
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main (int argc, char *argv[])
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{
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bool success = true;
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int i;
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for (i = 1; i < argc; i++)
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{
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int fd = open (argv[i]);
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if (fd < 0)
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{
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printf ("%s: open failed\n", argv[i]);
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success = false;
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continue;
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}
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for (;;)
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{
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char buffer[1024];
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int bytes_read = read (fd, buffer, sizeof buffer);
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if (bytes_read == 0)
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break;
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write (STDOUT_FILENO, buffer, bytes_read);
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}
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close (fd);
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}
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return success ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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