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14ba5e14d9
* libc/stdio/local.h (cantwrite, FREEUB, FREELB): Make reentrant. (__smakebuf): Rename... (__smakebuf_r): to this. * libc/stdio/fvwrite.h (__swsetup_r): Rename, from __swsetup. * libc/stdio/makebuf.c (__smakebuf): Detect failed asprint allocation, then rename... (__smakebuf_r): ...to this and fix reentrancy. * libc/stdio/wsetup.c (__swsetup): Detect failed asprintf allocation, then rename... (__swsetup_r): ...to this and fix reentrancy. * libc/stdio/fseek.c (_fseek_r): Fix reentrancy. * libc/stdio/refill.c (__srefill_r): Likewise. * libc/stdio/fclose.c (_fclose_r): Likewise. * libc/stdio/fread.c (_fread_r): Likewise. * libc/stdio/freopen.c (_freopen_r): Likewise. * libc/stdio/wbuf.c (__swbuf_r): Likewise. * libc/stdio64/fseeko64.c (_fseeko64_r): Likewise. * libc/stdio/fvwrite.c (__sfvwrite_r): Set errno properly on failed asprintf allocation, and fix reentrancy. * libc/stdio/snprintf.c (snprintf, _snprintf_r): Report overflow, as required by POSIX. * libc/stdio/sniprintf.c (sniprintf, _sniprintf_r): Likewise. * libc/stdio/vsnprintf.c (vsnprintf, _vsnprintf_r): Likewise. * libc/stdio/vsniprintf.c (vsniprintf, _vsniprintf_r): Likewise.