parent
036d731bf2
commit
1dbcf54a87
@ -1,55 +0,0 @@
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#define __LIBRARY__
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stdarg.h>
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FILE __stdout;
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#define O_RDONLY 00
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#define MSG_LEN 256
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#define MAX_NUMBER_BYTES 1024
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_syscall3(int,open,const char *,filename,int, flag,int, mode)
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_syscall3(int,write,int ,fd,const char *, buf, off_t ,count)
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_syscall3(int,read,int ,fildes,char *, buf, off_t ,count)
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_syscall0(int,sync)
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_syscall1(int,close,int,fildes)
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_syscall3(int ,vsprintf1,char *, buf, const char *, fmt, va_list ,args)
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static char printbuf[1024];
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int printf(const char *fmt,...)
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{
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write(2,fmt,strlen(fmt));
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}
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int main(int argc, char **argv)
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{
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int num, fd;
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char msg[MSG_LEN+1];
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if (argc == 1)
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return EXIT_FAILURE;
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/* open the file */
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if ((fd=open(argv[1], O_RDONLY, 0)) < 0)
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return EXIT_FAILURE;
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do{
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/* read the file */
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if ((num = read(fd, msg, MSG_LEN)) < 0) {
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close(fd);
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return EXIT_FAILURE;
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} else if (num == 0) {
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break;
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}
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/* display on screen */
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msg[num] = '\0';
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printf( msg);
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}while(1);
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printf("\n");
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/* exit */
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close(fd);
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sync();
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return EXIT_SUCCESS;
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}
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