32 lines
594 B
C
32 lines
594 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#define SZBUF 256
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int main(int argc, char *argv[]){
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int fd, m, n;
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char buf[SZBUF];
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if (argc < 2){
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fprintf(stderr, "Usage : %s <DST_FILE>\n", argv[0]);
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exit(1);
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}
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fd = open(argv[1], O_WRONLY|O_TRUNC|O_CREAT ,0644);
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if (fd == -1){
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perror("Cannot open destination file");
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exit(2);
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}
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write(1, "Nomb --> ", 9);
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while (n=read(0, buf, SZBUF)){
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m=write(fd, buf, n);
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if (n == -1){
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perror("Writing in file fails");
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exit(3);
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}
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write(1, "Nomb --> ", 9);
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}
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close(fd);
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return EXIT_SUCCESS;
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}
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