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“#include” a text file in a C program as a char[]
... use it like so
$ echo hello world > a
$ xxd -i a
outputs:
unsigned char a[] = {
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x0a
};
unsigned int a_len = 12;
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How do you allow spaces to be entered using scanf?
...
/* Maximum name size + 1. */
#define MAX_NAME_SZ 256
int main(int argC, char *argV[]) {
/* Allocate memory and check if okay. */
char *name = malloc(MAX_NAME_SZ);
if (name == NULL) {
printf("No memory\n");
return 1;
}
/* Ask user for name. */
printf("Wha...
Why use double indirection? or Why use pointers to pointers?
...
If you want to have a list of characters (a word), you can use char *word
If you want a list of words (a sentence), you can use char **sentence
If you want a list of sentences (a monologue), you can use char ***monologue
If you want a list of monologue...
Size of character ('a') in C/C++
What is the size of character in C and C++ ? As far as I know the size of char is 1 byte in both C and C++.
4 Answers
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How to do ssh with a timeout in a script?
I'm executing a script connecting via password-less SSH on a remote host. I want to set a timeout, so that if the remote host is taking an infinite time to run, I want to come out of that ssh session and continue other lines in my sh script.
...
How to define an enum with string value?
...value with each enum value, or in this case if every separator is a single character you could just use the char value:
enum Separator
{
Comma = ',',
Tab = '\t',
Space = ' '
}
(EDIT: Just to clarify, you can't make char the underlying type of the enum, but you can use char constants t...
JNI converting jstring to char *
... jstring data type through the use of JNI. And my library method needs a char * as url.
2 Answers
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ActionController::InvalidAuthenticityToken
...able Entity) was returned to the user.
The solution for Rails 3:
Add:
skip_before_filter :verify_authenticity_token
or as "sagivo" pointed out in Rails 4 add:
skip_before_action :verify_authenticity_token
On pages which do caching.
As @toobulkeh commented this is not a vulnerability o...
“PKIX path building failed” and “unable to find valid certification path to requested target”
...pe example.cer
chrome - click on site icon left to address in address bar, select "Certificate" -> "Details" -> "Export" and save in format "Der-encoded binary, single certificate".
Now you have file with keystore and you have to add it to your JVM. Determine location of cacerts files, eg.
C...
Pinging servers in Python
...ere is a module called pyping that can do this. It can be installed with pip
pip install pyping
It is pretty simple to use, however, when using this module, you need root access due to the fact that it is crafting raw packets under the hood.
import pyping
r = pyping.ping('google.com')
if r....