diff options
| -rw-r--r-- | coreutils/tee.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/coreutils/tee.c b/coreutils/tee.c index fe56943..e67296d 100644 --- a/coreutils/tee.c +++ b/coreutils/tee.c @@ -39,6 +39,19 @@ //usage: "$ cat /tmp/foo\n" //usage: "Hello\n" +// Bare "tee" with no below options does not install SIGPIPE handler - just dies on it. +// TODO: +// --output-error[=MODE] +// 'warn' diagnose errors writing to any output +// 'warn-nopipe' diagnose errors writing to any output not a pipe +// 'exit' exit on error writing to any output +// 'exit-nopipe' exit on error writing to any output not a pipe +// ^^^ all of these should set SIGPIPE to SIG_IGN. +// Because "exit" mode should print error message and exit1(1) - not die on SIGPIPE. +// "exit-nopipe" does not exit on EPIPE and does not set exitcode to 1 too. +// -p diagnose errors writing to non pipes +// ^^^^ this should set SIGPIPE to SIG_IGN. EPIPE is ignored (same as "warn-nopipe") + #include "libbb.h" #include "common_bufsiz.h" @@ -66,12 +79,12 @@ int tee_main(int argc, char **argv) mode += (retval & 2); /* Since 'a' is the 2nd option... */ if (retval & 1) { - signal(SIGINT, SIG_IGN); /* TODO - switch to sigaction. (why?) */ + signal(SIGINT, SIG_IGN); } retval = EXIT_SUCCESS; - /* gnu tee ignores SIGPIPE in case one of the output files is a pipe - * that doesn't consume all its input. Good idea... */ - signal(SIGPIPE, SIG_IGN); + /* if (opt_p || opt_output_error) + signal(SIGPIPE, SIG_IGN); + */ /* Allocate an array of FILE *'s, with one extra for a sentinel. */ fp = files = xzalloc(sizeof(FILE *) * (argc + 2)); @@ -79,6 +92,7 @@ int tee_main(int argc, char **argv) files[0] = stdout; goto GOT_NEW_FILE; + do { *fp = stdout; if (NOT_LONE_DASH(*argv)) { @@ -102,6 +116,7 @@ int tee_main(int argc, char **argv) fp = files; do fwrite(buf, 1, c, *fp); + /* if (opt_p && fwrite() != c && !EPIPE) bb_error_msg("..."); */ while (*++fp); } if (c < 0) { /* Make sure read errors are signaled. */ @@ -113,6 +128,7 @@ int tee_main(int argc, char **argv) fp = files; do putc(c, *fp); + /* if (opt_p && putc() == EOF && !EPIPE) bb_error_msg("..."); */ while (*++fp); } #endif |