ed90bdabb
Denis Vlasenko
2008-06-28
Subject
touch: support -r REF_FILE if ENABLE_DESKTOP (needed for blackfin compile)
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Commit Diff GitHub →
coreutils/touch.c+39 -6
| @@ -21,24 +21,55 @@ | |
| /* This is a NOFORK applet. Be very careful! */ | |
| + | /* coreutils implements: |
| + | * -a change only the access time |
| + | * -c, --no-create |
| + | * do not create any files |
| + | * -d, --date=STRING |
| + | * parse STRING and use it instead of current time |
| + | * -f (ignored, BSD compat) |
| + | * -m change only the modification time |
| + | * -r, --reference=FILE |
| + | * use this file's times instead of current time |
| + | * -t STAMP |
| + | * use [[CC]YY]MMDDhhmm[.ss] instead of current time |
| + | * --time=WORD |
| + | * change the specified time: WORD is access, atime, or use |
| + | */ |
| + | |
| int touch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; | |
| int touch_main(int argc ATTRIBUTE_UNUSED, char **argv) | |
| { | |
| + | #if ENABLE_DESKTOP |
| + | struct utimbuf timebuf; |
| + | char *reference_file = NULL; |
| + | #else |
| + | #define reference_file NULL |
| + | #define timebuf (*(struct utimbuf*)NULL) |
| + | #endif |
| int fd; | |
| int status = EXIT_SUCCESS; | |
| - | int flags = getopt32(argv, "cf"); |
| + | int flags = getopt32(argv, "c" USE_DESKTOP("r:") |
| + | /*ignored:*/ "fma" |
| + | USE_DESKTOP(, &reference_file)); |
| - | flags &= 1; /* ignoring -f (BSD compat thingy) */ |
| + | flags &= 1; /* only -c bit is left */ |
| argv += optind; | |
| - | |
| if (!*argv) { | |
| bb_show_usage(); | |
| } | |
| + | if (reference_file) { |
| + | struct stat stbuf; |
| + | xstat(reference_file, &stbuf); |
| + | timebuf.actime = stbuf.st_atime; |
| + | timebuf.modtime = stbuf.st_mtime; |
| + | } |
| + | |
| do { | |
| - | if (utime(*argv, NULL)) { |
| - | if (errno == ENOENT) { /* no such file */ |
| - | if (flags) { /* Creation is disabled, so ignore. */ |
| + | if (utime(*argv, reference_file ? &timebuf : NULL)) { |
| + | if (errno == ENOENT) { /* no such file */ |
| + | if (flags) { /* creation is disabled, so ignore */ |
| continue; | |
| } | |
| /* Try to create the file. */ | |
| @@ -46,6 +77,8 @@ int touch_main(int argc ATTRIBUTE_UNUSED, char **argv) | |
| S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH | |
| ); | |
| if ((fd >= 0) && !close(fd)) { | |
| + | if (reference_file) |
| + | utime(*argv, &timebuf); |
| continue; | |
| } | |
| } | |