src/minish-read.c

   1 #define _POSIX_C_SOURCE 200809L
   2 #include <errno.h>
   3 #include <locale.h>
   4 #include <stdio.h>
   5
   6 int main(int argc, char** argv) {
   7         setlocale(LC_ALL, "");
   8         char const* const name = argv[0] ? argv[0] : "minish-read";
   9         char const* const file = argc ? argv[1] : NULL;
  10         for (;;) {
  11                 int const c = getchar();
  12                 switch (c) {
  13                 case EOF:
  14                         if (ferror(stdin)) {
  15                                 int const tmp = errno;
  16                                 fprintf(stderr, "%s: ", name);
  17                                 errno = tmp;
  18                                 perror(file);
  19                                 return 1;
  20                         }
  21                         return 2;
  22                 case '\n': return 0;
  23                 }
  24                 putchar(c);
  25         }
  26 }