copyfile function takes 2 filedescriptors as arguments args copies from one other
/* source: http://vip.cs.utsa.edu/usp/ */
 makefile |
# makefile for assignment 1
CC = gcc
CFLAGS = -Wall -g
COMPILE = $(CC) $(CFLAGS) -c
SRCS := $(wildcard *.c)
|
opnnred.c |
file descriptor open/read of argv
#include<assert.h>
r_read.c |
the r_read is similar to read except that it restarts itself if interrupted by a signal
/* http://vip.cs.utsa.edu/usp/ dr.robbins utsa computer science */
r_write.c |
the r_read is similar to read except that it restarts itself if interrupted by a signal
/* http://vip.cs.utsa.edu/usp/ dr.robbins utsa computer science */
read_rite |
add
ELF 4 $ 4 ( " 4 44 , 8 /lib/ld-linux.so.2 GNU
L + \< $ l |8 D = F { i 1 ̄ U ܄ Z l 4 8 < libc.so.6 stdout vsprintf strerror fflush write strcat read stderr __errno_location exit _IO_stdin_used __libc_start_main strlen fputs __gmon_start__ GLIBC_2.0 ii
U [ 5% %h %h %h %h %h %h( %h0 %h8 p%h@ `%hH P%hP @%hX 01^PTRhLh$QVhUSP [B < tЋ]ÐU=Ę u)tҡuĘÉUxt t hxKzÐUE Euuj jUS Euu P=} t8uV PhpPkPhuPh 55P j ]U )ăh Pj 1E} .uPjo;Et hw뮃} y h j USRhht ЋuX[USR [& ] : %s
write error read error t $
L ( Ȃ
| ` ă oo oj Rbr҄ GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) GCC: (GNU) 3.2 20020903 (Red Hat Linux 8.0 3.2-7) , L $ 0# $ . c : ! _IO_stdin_used 00o # < N M< # L S L int u E FS # w # R S # 0 $* +S # ,S # -Z # .S # /S #& 00 #N 1S # 27 # 30 # _ ^ < :u # M ;d #
|
read_rite.c |
stevens typesafe read function
#include "read_rite.h"
read_rite.h |
add
#include <unistd.h> /* for STDIN_FILENO and STDOUT_FILENO */
read_terminator.c |
read does not append any kind of line terminator
#include <fcntl.h> // O_RDONLY
readblock.c |
a function that repeatably calls read and gets up to a specific number of bytes
/* http://vip.cs.utsa.edu/usp/ dr.robbins utsa computer science */
readblock_c_gcc-E.txt |
macro preprocessed stop there show inclusion from headers
# 1 "readblock.c"
# 1 ""
# 1 ""
# 1 "readblock.c"
readblock_test1.c |
add
/* http://vip.cs.utsa.edu/usp/ */
readblock_test2.c |
add
#include <fcntl.h> // O_RDONLY
send_nonblocking.c |
a non-blocking send function
/*
unbufferedIO.htm |
add
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