One weird thing is that when I try to print out the elements in the paths array, it says there are atleast 9 but when I use sizeof(paths) I get 4... What could be the reason for this?
You are getting the size of the pointer, not the number of elements in the array.
int processIt(const char* command, char* paths[], int numberOfPaths)
{
/*paths contains the current path to be searched*/
for(i=0; i<numberOfPaths; i++) {
char temp[1024];
strcpy(temp,paths[i]);
strcat(temp,pathsep);
strcat(temp,command);
result = access(temp, X_OK);
if(result != -1)
{
printf("%s\t",temp);
printf("%d\n",result);
}
}
return 0;
} /* processIt! */
The function has no idea of the number of valid elements in the paths array.
Use strcpy for the first, then strcat to append.
access returns -1 for error, non -1 for success.
X_OK as you want to know the file is executable.
Thank you so much... I followed your advice... And if I want to implement alias support for my command... do I have to add some extra lines to the code or do I just have to utilise the alias command?
Not exactly... But my book wants me and its not homework... :P And yeah, don't tell me the solution or anything. I want to implement it myself... I just want to know the meaning of that... thats it..
