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Add __strlcpy_chk symbol for Minecraft 1.21.130.3+ compatibility #49

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Merged
ChristopherHX merged 2 commits into from
Dec 30, 2025
Merged

Add __strlcpy_chk symbol for Minecraft 1.21.130.3+ compatibility #49

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77e82d8
added the missing __strlcpy_chk symbol
AndrewX98 Dec 30, 2025
4537889
Add __strlcpy_chk function declaration
AndrewX98 Dec 30, 2025
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10 changes: 10 additions & 0 deletions src/common.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -356,6 +356,15 @@ char* shim::__strncpy_chk2(char* dst, const char* src, size_t n, size_t dst_len,
return strncpy(dst, src, n);
}

size_t shim::__strlcpy_chk(char *dst, const char *src, size_t size,
size_t max_len) {
if (size > max_len) {
fprintf(stderr, "detected copy past buffer size");
abort();
}
return bionic::strlcpy(dst, src, size);
}

int shim::sendfile(int src, int dst, bionic::off_t *offset, size_t count) {
off_t c = offset ? (off_t)offset : 0;
#ifdef __APPLE__
Expand Down Expand Up @@ -896,6 +905,7 @@ void shim::add_string_shimmed_symbols(std::vector<shim::shimmed_symbol> &list) {
{"__strncat_chk", __strncat_chk},
{"__strncpy_chk", __strncpy_chk},
{"__strncpy_chk2", __strncpy_chk2},
{"__strlcpy_chk", __strlcpy_chk},
{"strlcpy", bionic::strlcpy},
{"strcspn", ::strcspn},
{"strpbrk", (char *(*)(char *, const char *)) ::strpbrk},
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2 changes: 2 additions & 0 deletions src/common.h
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Expand Up @@ -128,6 +128,8 @@ namespace shim {

char* __strncpy_chk2(char* dst, const char* src, size_t n, size_t dst_len, size_t src_len);

size_t __strlcpy_chk(char *dst, const char *src, size_t size, size_t max_len);

size_t ctype_get_mb_cur_max();

int gettimeofday(bionic::timeval *tv, void *p);
Expand Down