diff options
Diffstat (limited to 'coreutils/touch.c')
-rw-r--r-- | coreutils/touch.c | 67 |
1 files changed, 34 insertions, 33 deletions
diff --git a/coreutils/touch.c b/coreutils/touch.c index f1c6dc4..c66f26e 100644 --- a/coreutils/touch.c +++ b/coreutils/touch.c @@ -21,6 +21,16 @@ * */ +/* BB_AUDIT SUSv3 _NOT_ compliant -- options -a, -m, -r, -t not supported. */ +/* http://www.opengroup.org/onlinepubs/007904975/utilities/touch.html */ + +/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) + * + * Previous version called open() and then utime(). While this will be + * be necessary to implement -r and -t, it currently only makes things bigger. + * Also, exiting on a failure was a bug. All args should be processed. + */ + #include <stdio.h> #include <sys/types.h> #include <fcntl.h> @@ -33,44 +43,35 @@ extern int touch_main(int argc, char **argv) { int fd; - int create = TRUE; + int flags; + int status = EXIT_SUCCESS; - /* Parse options */ - while (--argc > 0 && **(++argv) == '-') { - while (*(++(*argv))) { - switch (**argv) { - case 'c': - create = FALSE; - break; - default: - show_usage(); - } - } - } + flags = bb_getopt_ulflags(argc, argv, "c"); + + argv += optind; - if (argc < 1) { - show_usage(); + if (!*argv) { + bb_show_usage(); } - while (argc > 0) { - fd = open(*argv, create ? O_RDWR | O_CREAT : O_RDWR, - S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); - if (fd < 0) { - if (! create && errno == ENOENT) { - argc--; - argv++; - continue; - } else { - perror_msg_and_die("%s", *argv); - } - } - close(fd); + do { if (utime(*argv, NULL)) { - perror_msg_and_die("%s", *argv); + if (errno == ENOENT) { /* no such file*/ + if (flags & 1) { /* Creation is disabled, so ignore. */ + continue; + } + /* Try to create the file. */ + fd = open(*argv, O_RDWR | O_CREAT, + S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH + ); + if ((fd >= 0) && !close(fd)) { + continue; + } + } + status = EXIT_FAILURE; + bb_perror_msg("%s", *argv); } - argc--; - argv++; - } + } while (*++argv); - return EXIT_SUCCESS; + return status; } |