X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=dehuff.c;h=8fd4c2072fce46cbe792295fc977a3e7f53b2deb;hb=352c52d38c212a2aa93a9970731c9d7a2f8d4dac;hp=a7254692dd4f90deae10bc2fb571baf9952f26bb;hpb=f6111465adacc2840f4cd25d55b3017cbf0593b2;p=fjl diff --git a/dehuff.c b/dehuff.c index a725469..8fd4c20 100644 --- a/dehuff.c +++ b/dehuff.c @@ -4,38 +4,9 @@ #include "bytesource.h" #include "dehuff.h" +#include "input.h" -void reliable_read(raw_input_func_t* input_func, void* userdata, uint8_t* buf, size_t len) -{ - while (len > 0) { - ssize_t bytes_read = input_func(userdata, buf, len); - assert(bytes_read <= (ssize_t)len); - - // TODO: We need better error handling here. setjmp()/longjmp() - // should hopefully do the trick, but we need to take care for - // suspension. - if (bytes_read == (ssize_t)-1) { - fprintf(stderr, "Input function returned error\n"); - exit(1); - } - if (bytes_read == 0) { - fprintf(stderr, "Premature EOF\n"); - exit(1); - } - - buf += bytes_read; - len -= bytes_read; - } -} - -uint16_t read_length(raw_input_func_t* input_func, void* userdata) -{ - uint8_t buf[2]; - reliable_read(input_func, userdata, buf, 2); - return (buf[0] << 8) | buf[1]; -} - -void read_huffman_tables(huffman_tables_t* dst, raw_input_func_t* input_func, void* userdata) +void read_huffman_tables(huffman_tables_t* dst, input_func_t* input_func, void* userdata) { size_t len = read_length(input_func, userdata); assert(len > 2);