Visit Our UNIX and Linux User Community

How to pass an array from SHELL to C function

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to pass an array from SHELL to C function
# 1  
Old 02-20-2009
How to pass an array from SHELL to C function


I have an output generated from a shell script like;

How can I pass this value to the C function, as below;

int main(int argc, char *argv[]) {
unsigned char hellopdu[]={above value};

# 2  
Old 02-21-2009
See the two values main takes? They contain your commandline arguments. argv is an array of strings containing the arguments, and argc tells you how many strings it has in it. In nearly all cases, the first argument is the name the program was run with, and all the ones after it are the ones you want.

Were you to run your program with my_c_program a b c d, then the contents of argv[] would be { "my_c_program", "a", "b", "c", "d", NULL}, and the value of argc would be 5.

So, run the program like
my_c_program 0x41,0xF2,0x59,0xDD,0x86,0xD3,0xEF,0x61,0xF2

and that string will be found in argv[1].

Previous Thread | Next Thread
Test Your Knowledge in Computers #886
Difficulty: Medium
Phishing is the attempt to acquire sensitive information such as usernames, passwords, and credit card details directly from users by installing backdoors to operating systems.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to pass and read an array in ksh shell script function.?

I'm able to read & print an array in varaible called "filelist" I need to pass this array variable to a function called verify() and then read and loop through the passed array inside the function. Unfortunately it does not print the entire array from inside the funstion's loop. #/bin/ksh... (5 Replies)
Discussion started by: mohtashims
5 Replies

2. Shell Programming and Scripting

Pass C shell array to another C shell script(csh) and shell(sh)

Dear Friends, Please help me on this my script name is send.csh In this i have written the statement like this set args = ( city state country price ) I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell or how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 Replies

3. Shell Programming and Scripting

Pass array to a function and display the array

Hi All I have multiple arrays like below. set -A val1 1 2 4 5 set -A val2 a b c d . . . Now i would like to pass the individual arrays one by one to a function and display/ do some action. Note : I am using ksh Can you please advise any solution... Thanks in advance. (7 Replies)
Discussion started by: Girish19
7 Replies

4. Shell Programming and Scripting

Split list of files into an array and pass to function

There are two parts to this. In the first part I need to read a list of files from a directory and split it into 4 arrays. I have done that with the following code, # collect list of file names STATS_INPUT_FILENAMES=($(ls './'$SET'/'$FOLD'/'*'in.txt')) # get number of files... (8 Replies)
Discussion started by: LMHmedchem
8 Replies

5. UNIX for Dummies Questions & Answers

Pass array to shell and print

How do i pass an array from to a function in another shell script, basically i am sourcing the in and printing the contents, but not working below are my trial scripts, please help, thank you. #!/bin/bash # /usr/local/dw/archive/ print_array() {... (5 Replies)
Discussion started by: Ariean
5 Replies

6. Shell Programming and Scripting

Question about sorting -- how to pass an array to a function

Hi, guys I just wanted to sort the elements of an array ascendingly. I know the following code does work well: array=(13 435 8 23 100) for i in {0..4} do j=$((i+1)) while ] do if } -le ${array} ]] then : else min=${array} ${array}=${array} ${array}=$min fi... (5 Replies)
Discussion started by: franksunnn
5 Replies

7. Shell Programming and Scripting

How to pass an array to a function in shell script.?

hi, I have a array say SAP_ARRAY="s1.txt" SAP_ARRAY="s2.txt" how can i pass this full array to a function. here is the sample code i am using.. CHECK_NO_FILES() { FARRAY=$1 echo "FARRAY = $FARRAY" echo "FARRAY = $FARRAY" ............... (5 Replies)
Discussion started by: Little
5 Replies

8. Shell Programming and Scripting

Pass array variabel to awk from shell

Hi I need to pass an array to Awk script from Shell. Can you please tell how to do it? How to pass this array add_ct_arr to an awk script or access it in awk? i=1 while ; do add_ct_arr=$(echo ${adda_count} | awk -v i=$i -F" " '{print $i;}') echo ${add_ct_arr} ... (1 Reply)
Discussion started by: appsguy616
1 Replies

9. Shell Programming and Scripting

Can we pass array with call by value in function

I want to pass an array in my function, And my function will be changing the elements of the array in the fuction, but it should not affect the values in my array variable of main function (1 Reply)
Discussion started by: ranjithpr
1 Replies

10. Shell Programming and Scripting

How to pass arguments to a function in a shell script?

Hi, I have two shell variables $t1 and $t2 which I need to pass to a function in a shell script. The function will do some computation with those two variables and echo the resultant. But I do not know how to pass teh arguments. The function written is f1() {...... ........ } What should... (3 Replies)
Discussion started by: preetikate
3 Replies

Featured Tech Videos