diff options
| -rw-r--r-- | pgm-interlace.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/pgm-interlace.c b/pgm-interlace.c index fbc1cc8..eeaade4 100644 --- a/pgm-interlace.c +++ b/pgm-interlace.c @@ -136,6 +136,12 @@ int read_token(FILE *fd, char *token, size_t token_size, const char *allowable) token[t] = '\0'; + if (strlen(token) == 0) + { + fprintf(stderr, "read_token: no token available\n"); + return 1; + } + return 0; } |