Concatenating file with path to get full path in C

Question

Using C, I\'m trying to concatenate the filenames in a directory with their paths so that I can call stat() for each, but when I try to do using strcat inside the loop it co

Answer 1

You must not try to increase the size of argv[1] by strcat'ing to it (and changing it at all is a bad idea) - that will cause undefined behaviour. Instead, copy argv[1] into a suitable sized buffer and work with that:

char path[1000];   // or some suitable size;
strcpy( path, argv[1] );