d1199c038a
Fixes https://github.com/termux/science-packages/issues/50. With this we can generate the pdflatex format file, and compile tex files with pdflatex. There might very well be other formats/engines that still trigger the sanitizer.
34 lines
1.4 KiB
Diff
34 lines
1.4 KiB
Diff
--- ./texk/web2c/texmfmp.h.orig 2021-06-25 11:32:31.312905780 +0000
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+++ ./texk/web2c/texmfmp.h 2021-06-25 11:32:52.192921107 +0000
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@@ -266,11 +266,28 @@
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#define bopenout(f) open_output (&(f), FOPEN_WBIN_MODE)
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#define bclose aclose
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#ifdef FMT_COMPRESS
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+
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+#include <android/fdsan.h>
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+#include <dlfcn.h>
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+
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+/* termux hack to disable file descriptor sanitizer */
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+static int disable_fdsan() {
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+ void *lib_handle = dlopen("libc.so", RTLD_LAZY);
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+ if (lib_handle) {
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+ void (*set_fdsan_error_level)(enum android_fdsan_error_level newlevel) = dlsym(lib_handle, "android_fdsan_set_error_level");
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+ if (set_fdsan_error_level) {
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+ set_fdsan_error_level(ANDROID_FDSAN_ERROR_LEVEL_DISABLED);
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+ }
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+ dlclose(lib_handle);
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+ }
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+ return 1;
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+}
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+
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/* f is declared as gzFile, but we temporarily use it for a FILE *
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so that we can use the standard open calls */
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-#define wopenin(f) (open_input ((FILE**)&(f), DUMP_FORMAT, FOPEN_RBIN_MODE) \
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+#define wopenin(f) (disable_fdsan() && open_input ((FILE**)&(f), DUMP_FORMAT, FOPEN_RBIN_MODE) \
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&& (f = gzdopen(fileno((FILE*)f), FOPEN_RBIN_MODE)))
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-#define wopenout(f) (open_output ((FILE**)&(f), FOPEN_WBIN_MODE) \
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+#define wopenout(f) (disable_fdsan() && open_output ((FILE**)&(f), FOPEN_WBIN_MODE) \
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&& (f = gzdopen(fileno((FILE*)f), FOPEN_WBIN_MODE)) \
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&& (gzsetparams(f, 1, Z_DEFAULT_STRATEGY) == Z_OK))
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#define wclose(f) gzclose(f)
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