0e84a0ec6e
give cpu1 a TSS and gdt for when it enters scheduler() and a pseudo proc[] entry for each cpu cpu0 waits for each other cpu to start up read() for files
35 lines
520 B
C
35 lines
520 B
C
#include "user.h"
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char buf[513];
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int
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main(int argc, char *argv[])
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{
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int fd, i, cc;
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if(argc < 2){
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puts("Usage: cat files...\n");
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exit();
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}
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for(i = 1; i < argc; i++){
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fd = open(argv[i], 0);
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if(fd < 0){
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puts("cat: cannot open ");
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puts(argv[i]);
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puts("\n");
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exit();
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}
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while((cc = read(fd, buf, sizeof(buf) - 1)) > 0){
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buf[cc] = '\0';
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puts(buf);
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}
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if(cc < 0){
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puts("cat: read error\n");
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exit();
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}
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close(fd);
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}
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exit();
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}
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