9a1db7459e
Input format - Less restriction on input length - Input text and charset no longer overlapped Performance - Less memory allocation - Less disk IO - Do not force GC. This make the fuzzer roughly 10x faster
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
#include <stdint.h>
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#include <stdlib.h>
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#include <gc.h>
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#include "wc.h"
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#include "wtf.h"
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static void *die_oom(size_t bytes) {
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fprintf(stderr, "Out of memory: %lu bytes unavailable!\n", (unsigned long)bytes);
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exit(1);
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}
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size){
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static int init_done = 0;
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if (!init_done) {
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setenv("GC_LARGE_ALLOC_WARN_INTERVAL", "30000", 1);
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GC_INIT();
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#if (GC_VERSION_MAJOR>7) || ((GC_VERSION_MAJOR==7) && (GC_VERSION_MINOR>=2))
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GC_set_oom_fn(die_oom);
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#else
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GC_oom_fn = die_oom;
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#endif
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#ifdef USE_M17N
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#ifdef USE_UNICODE
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wtf_init(WC_CES_UTF_8, WC_CES_UTF_8);
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#else
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wtf_init(WC_CES_EUC_JP, WC_CES_EUC_JP);
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#endif
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#endif
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init_done = 1;
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}
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/* Assume the data format is:
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* <str1> \0 <str2> \0 <str3>
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*/
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const uint8_t *str1, *str2, *str3;
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const uint8_t *p;
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str1 = data;
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p = memchr(str1, '\0', size);
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if (p == NULL) return 0;
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str2 = p + 1;
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if (str2 >= data + size) return 0;
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p = memchr(str2, '\0', data + size - str2);
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if (p == NULL) return 0;
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str3 = p + 1;
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wc_ces old, from, to;
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from = wc_guess_charset_short((char*)str1, 0);
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to = wc_guess_charset_short((char*)str2, 0);
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Str s = Strnew_charp_n((char*)str3, data + size - str3);
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wc_Str_conv_with_detect(s, &from, from, to);
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Strfree(s);
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return 0;
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}
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