X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=miscutils%2Fmt.c;h=350d3ae5a629f887871c16708ceccfd1b92d6d03;hb=cbe31dace5fb24304694d399b9eb267fbe752516;hp=28922f8d9227d73ad88d16fac0741ed90dd0eb5c;hpb=7ab9c7ee52db8759d457819f5480378fa3aa97cc;p=oweals%2Fbusybox.git diff --git a/miscutils/mt.c b/miscutils/mt.c index 28922f8d9..350d3ae5a 100644 --- a/miscutils/mt.c +++ b/miscutils/mt.c @@ -1,14 +1,9 @@ /* vi: set sw=4 ts=4: */ -#include "internal.h" #include +#include #include #include - -static const char mt_usage[] = "mt [-f device] opcode value\n" -#ifndef BB_FEATURE_TRIVIAL_HELP - "\nControl magnetic tape drive operation\n" -#endif - ; +#include "busybox.h" struct mt_opcodes { char *name; @@ -61,13 +56,13 @@ extern int mt_main(int argc, char **argv) struct mtop op; int fd; - if ((argc != 2 && argc != 3) || **(argv + 1) == '-') { - usage(mt_usage); + if (argc < 2) { + show_usage(); } if (strcmp(argv[1], "-f") == 0) { if (argc < 4) { - usage(mt_usage); + show_usage(); } file = argv[2]; argv += 2; @@ -81,8 +76,8 @@ extern int mt_main(int argc, char **argv) } if (code->name == 0) { - fprintf(stderr, "mt: unrecognized opcode %s.\n", argv[1]); - exit (FALSE); + error_msg("unrecognized opcode %s.", argv[1]); + return EXIT_FAILURE; } op.mt_op = code->value; @@ -91,15 +86,11 @@ extern int mt_main(int argc, char **argv) else op.mt_count = 1; /* One, not zero, right? */ - if ((fd = open(file, O_RDONLY, 0)) < 0) { - perror(file); - exit (FALSE); - } + if ((fd = open(file, O_RDONLY, 0)) < 0) + perror_msg_and_die("%s", file); - if (ioctl(fd, MTIOCTOP, &op) != 0) { - perror(file); - exit (FALSE); - } + if (ioctl(fd, MTIOCTOP, &op) != 0) + perror_msg_and_die("%s", file); - exit (TRUE); + return EXIT_SUCCESS; }