0001453: setlinebuf() doesn't work - BusyBox Bug and Patch Tracking

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(0011874) bernhardf 09-24-08 07:10	Works for me on current trunk: $ cat setlinebuf.c #include <stdio.h> #include <errno.h> #ifdef __UCLIBC__ #define foo __modeflags #else #define foo _IO_file_flags #define __FLAG_LBF _IO_LINE_BUF #define __FLAG_NBF _IO_UNBUFFERED #endif #define bar(x) ((fla & x) == x) static void print_flags(int fla) { printf("%d & __FLAG_LBF = %d\n", fla, bar(__FLAG_LBF)); printf("%d & __FLAG_NBF = %d\n", fla, bar(__FLAG_NBF)); } int main(void) { int err; FILE *fp = fopen("/tmp/filp","w"); if (!fp) return 1; print_flags(fp->foo); setlinebuf (fp); err = errno; print_flags(fp->foo); printf("errno=%d\n", err); return 0; } $ gcc -o setlinebuf setlinebuf.c && ./setlinebuf -72539004 & __FLAG_LBF = 0 -72539004 & __FLAG_NBF = 0 -72538492 & __FLAG_LBF = 1 -72538492 & __FLAG_NBF = 0 errno=0 $ /scratch/src/buildroot.git.pentium4/build_i386/staging_dir/usr/bin/i386-linux-uclibc-gcc -Os -o setlinebuf_ setlinebuf.c -static && ./setlinebuf_ 24592 & __FLAG_LBF = 0 24592 & __FLAG_NBF = 0 8464 & __FLAG_LBF = 1 8464 & __FLAG_NBF = 0 errno=0

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