diff options
Diffstat (limited to 'ruby.c')
-rw-r--r-- | ruby.c | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -1815,6 +1815,36 @@ ruby_process_options(int argc, char **argv) return (void*)(struct RData*)iseq; } +static void +fill_standard_fds(void) +{ + int f0, f1, f2, fds[2]; + struct stat buf; + f0 = fstat(0, &buf) == -1 && errno == EBADF; + f1 = fstat(1, &buf) == -1 && errno == EBADF; + f2 = fstat(2, &buf) == -1 && errno == EBADF; + if (f0) { + if (pipe(fds) == 0) { + close(fds[1]); + if (fds[0] != 0) { + dup2(fds[0], 0); + close(fds[0]); + } + } + } + if (f1 || f2) { + if (pipe(fds) == 0) { + close(fds[0]); + if (f1 && fds[1] != 1) + dup2(fds[1], 1); + if (f2 && fds[1] != 2) + dup2(fds[1], 2); + if (fds[1] != 1 && fds[1] != 2) + close(fds[1]); + } + } +} + void ruby_sysinit(int *argc, char ***argv) { @@ -1827,4 +1857,5 @@ ruby_sysinit(int *argc, char ***argv) #if defined(USE_DLN_A_OUT) dln_argv0 = origarg.argv[0]; #endif + fill_standard_fds(); } |