Sha256: 1a42e09ed774110c43da5950befc9dfd0fe4cb98c0414e969129a2df5fbab959
Contents?: true
Size: 927 Bytes
Versions: 6
Compression:
Stored size: 927 Bytes
Contents
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
/*
* print out some file descriptors
*/
int main(int argc, char **argv)
{
int my_file_desc;
char file_name[4096];
int i;
int r;
char *string;
if(argc < 2) {
printf("need to specify a file name\n");
exit(1);
}
/*
* zero out the buffer for the file name
*/
for(i=0; i < sizeof(file_name); i++) {
file_name[i] = 0;
}
/*
* copy the argument into a local buffer
*/
strncpy(file_name,argv[1],sizeof(file_name));
file_name[sizeof(file_name)-1] = 0;
/*
* try and open the file for reading
*/
my_file_desc = open(file_name,O_RDONLY,0);
if(my_file_desc < 0) {
printf("failed to open %s for reading\n",file_name);
exit(1);
}
printf("my_file_desc: %d\n",my_file_desc);
string = "a string written to standard out\n";
write(1,string,strlen(string));
close(my_file_desc);
return(0);
}
Version data entries
6 entries across 6 versions & 1 rubygems