From: Paul Eggert Date: Fri, 7 Jan 2000 19:25:23 +0000 (+0000) Subject: (archive_write_error): Add noreturn attribute to decl. X-Git-Url: https://git.dogcows.com/gitweb?a=commitdiff_plain;h=cae3ad0d8e873d77aa7f5b45751741f47c864f98;p=chaz%2Ftar (archive_write_error): Add noreturn attribute to decl. (xclose): Use close_error. (xdup2): Regularize messages with rest of tar. (archive_write_error): Use write_fatal_details. (flush_read): Don't read past EOF. (flush_archive, close_archive, new_volume): Use close_warn. --- diff --git a/src/buffer.c b/src/buffer.c index 09738b3..5244ddf 100644 --- a/src/buffer.c +++ b/src/buffer.c @@ -76,7 +76,7 @@ FILE *stdlis; static void backspace_output PARAMS ((void)); static int new_volume PARAMS ((enum access_mode)); -static void archive_write_error PARAMS ((ssize_t)); +static void archive_write_error PARAMS ((ssize_t)) __attribute__ ((noreturn)); static void archive_read_error PARAMS ((void)); #if !MSDOS @@ -250,20 +250,15 @@ available_space_after (union block *pointer) static void xclose (int fd) { - if (close (fd) < 0) - { - int e = errno; - FATAL_ERROR ((0, e, _("Cannot close file #%d"), fd)); - } + if (close (fd) != 0) + close_error (_("(pipe)")); } -/*-----------------------------------------------------------------------. -| Duplicate file descriptor FROM into becoming INTO, or else, issue | -| MESSAGE. INTO is closed first and has to be the next available slot. | -`-----------------------------------------------------------------------*/ +/* Duplicate file descriptor FROM into becoming INTO. + INTO is closed first and has to be the next available slot. */ static void -xdup2 (int from, int into, const char *message) +xdup2 (int from, int into) { if (from != into) { @@ -272,13 +267,17 @@ xdup2 (int from, int into, const char *message) if (status != 0 && errno != EBADF) { int e = errno; - FATAL_ERROR ((0, e, _("Cannot close file descriptor"))); + FATAL_ERROR ((0, e, _("Cannot close"))); } status = dup (from); if (status != into) { - int e = status < 0 ? errno : 0; - FATAL_ERROR ((0, e, _("Cannot properly duplicate %s"), message)); + if (status < 0) + { + int e = errno; + FATAL_ERROR ((0, e, _("Cannot dup"))); + } + abort (); } xclose (from); } @@ -369,7 +368,7 @@ child_open_for_compress (void) program_name = _("tar (child)"); - xdup2 (parent_pipe[PREAD], STDIN_FILENO, _("(child) Pipe to stdin")); + xdup2 (parent_pipe[PREAD], STDIN_FILENO); xclose (parent_pipe[PWRITE]); /* Check if we need a grandchild tar. This happens only if either: @@ -397,7 +396,7 @@ child_open_for_compress (void) errno = saved_errno; open_fatal (archive_name_array[0]); } - xdup2 (archive, STDOUT_FILENO, _("Archive to stdout")); + xdup2 (archive, STDOUT_FILENO); execlp (use_compress_program_option, use_compress_program_option, (char *) 0); exec_fatal (use_compress_program_option); @@ -412,8 +411,7 @@ child_open_for_compress (void) { /* The child tar is still here! Launch the compressor. */ - xdup2 (child_pipe[PWRITE], STDOUT_FILENO, - _("((child)) Pipe to stdout")); + xdup2 (child_pipe[PWRITE], STDOUT_FILENO); xclose (child_pipe[PREAD]); execlp (use_compress_program_option, use_compress_program_option, (char *) 0); @@ -426,7 +424,7 @@ child_open_for_compress (void) /* Prepare for reblocking the data from the compressor into the archive. */ - xdup2 (child_pipe[PREAD], STDIN_FILENO, _("(grandchild) Pipe to stdin")); + xdup2 (child_pipe[PREAD], STDIN_FILENO); xclose (child_pipe[PWRITE]); if (strcmp (archive_name_array[0], "-") == 0) @@ -523,7 +521,7 @@ child_open_for_uncompress (void) program_name = _("tar (child)"); - xdup2 (parent_pipe[PWRITE], STDOUT_FILENO, _("(child) Pipe to stdout")); + xdup2 (parent_pipe[PWRITE], STDOUT_FILENO); xclose (parent_pipe[PREAD]); /* Check if we need a grandchild tar. This happens only if either: @@ -541,7 +539,7 @@ child_open_for_uncompress (void) archive = open (archive_name_array[0], O_RDONLY | O_BINARY, MODE_RW); if (archive < 0) open_fatal (archive_name_array[0]); - xdup2 (archive, STDIN_FILENO, _("Archive to stdin")); + xdup2 (archive, STDIN_FILENO); execlp (use_compress_program_option, use_compress_program_option, "-d", (char *) 0); exec_fatal (use_compress_program_option); @@ -556,7 +554,7 @@ child_open_for_uncompress (void) { /* The child tar is still here! Launch the uncompressor. */ - xdup2 (child_pipe[PREAD], STDIN_FILENO, _("((child)) Pipe to stdin")); + xdup2 (child_pipe[PREAD], STDIN_FILENO); xclose (child_pipe[PWRITE]); execlp (use_compress_program_option, use_compress_program_option, "-d", (char *) 0); @@ -569,7 +567,7 @@ child_open_for_uncompress (void) /* Prepare for unblocking the data from the archive into the uncompressor. */ - xdup2 (child_pipe[PWRITE], STDOUT_FILENO, _("(grandchild) Pipe to stdout")); + xdup2 (child_pipe[PWRITE], STDOUT_FILENO); xclose (child_pipe[PREAD]); if (strcmp (archive_name_array[0], "-") == 0) @@ -1030,22 +1028,16 @@ flush_write (void) static void archive_write_error (ssize_t status) { - int saved_errno = errno; - /* It might be useful to know how much was written before the error occurred. */ if (totals_option) - print_total_written (); - - if (status < 0) { - errno = saved_errno; - write_fatal (*archive_name_cursor); + int e = errno; + print_total_written (); + errno = e; } - else - FATAL_ERROR ((0, 0, _("Only wrote %lu of %lu bytes to %s"), - (unsigned long) status, (unsigned long) record_size, - quote (*archive_name_cursor))); + + write_fatal_details (*archive_name_cursor, status, record_size); } /*-------------------------------------------------------------------. @@ -1232,8 +1224,9 @@ flush_read (void) while (left % BLOCKSIZE != 0) { - while ((status = rmtread (archive, more, left)) < 0) - archive_read_error (); + if (status) + while ((status = rmtread (archive, more, left)) < 0) + archive_read_error (); if (status == 0) { @@ -1281,14 +1274,8 @@ flush_archive (void) if (file_to_switch_to >= 0) { - int status = rmtclose (archive); - - if (status < 0) - { - int e = errno; - WARN ((0, e, _("WARNING: %s: close (%d, %d)"), - quotearg_colon (*archive_name_cursor), archive, status)); - } + if (rmtclose (archive) != 0) + close_warn (*archive_name_cursor); archive = file_to_switch_to; } @@ -1393,16 +1380,8 @@ close_archive (void) if (verify_option) verify_volume (); - { - int status = rmtclose (archive); - - if (status < 0) - { - int e = errno; - WARN ((0, e, _("WARNING: %s: close (%d, %d)"), - quotearg_colon (*archive_name_cursor), archive, status)); - } - } + if (rmtclose (archive) != 0) + close_warn (*archive_name_cursor); #if !MSDOS @@ -1500,8 +1479,6 @@ new_volume (enum access_mode access) static FILE *read_file; static int looped; - int status; - if (!read_file && !info_script_option) /* FIXME: if fopen is used, it will never be closed. */ read_file = archive == STDIN_FILENO ? fopen (TTY_NAME, "r") : stdin; @@ -1511,12 +1488,8 @@ new_volume (enum access_mode access) if (verify_option) verify_volume (); - if (status = rmtclose (archive), status < 0) - { - int e = errno; - WARN ((0, e, _("WARNING: %s: close (%d, %d)"), - quotearg_colon (*archive_name_cursor), archive, status)); - } + if (rmtclose (archive) != 0) + close_warn (*archive_name_cursor); global_volno++; volno++;