How can I check if a string ends with ".csv" in C

Question

How to check if a string ends with ".csv" in C

I tried using strlen without any success

Answer 1

What about:

 char *dot = strrchr(str, '.'); if (dot && !strcmp(dot, ".csv")) /* ... */ 

Answer 2

 if(strlen(str) > 4 && !strcmp(str + strlen(str) - 4, ".csv")) 

Answer 3

The simplest (and most common) form of ThiefMaster code would be:

 int string_ends_with(const char * str, const char * suffix) { int str_len = strlen(str); int suffix_len = strlen(suffix); return (str_len >= suffix_len) && (0 == strcmp(str + (str_len-suffix_len), suffix)); }