Keith Winstein
24 lines
552 B
C++
24 lines
552 B
C++
#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include "swrite.h"
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int swrite( int fd, const char *str, ssize_t len )
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{
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ssize_t total_bytes_written = 0;
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ssize_t bytes_to_write = ( len >= 0 ) ? len : strlen( str );
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while ( total_bytes_written < bytes_to_write ) {
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ssize_t bytes_written = write( fd, str + total_bytes_written,
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bytes_to_write - total_bytes_written );
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if ( bytes_written <= 0 ) {
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perror( "write" );
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return -1;
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} else {
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total_bytes_written += bytes_written;
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}
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}
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return 0;
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}
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