X-Git-Url: https://git.saurik.com/apple/file_cmds.git/blobdiff_plain/44a7a5ab64e9df65e241260d76d3dac1160b3360..refs/heads/master:/touch/touch.c?ds=inline diff --git a/touch/touch.c b/touch/touch.c index 71499fa..ccfcb9f 100644 --- a/touch/touch.c +++ b/touch/touch.c @@ -1,5 +1,3 @@ -/* $NetBSD: touch.c,v 1.22 1998/08/25 20:59:42 ross Exp $ */ - /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. @@ -34,60 +32,74 @@ */ #include + +__FBSDID("$FreeBSD: src/usr.bin/touch/touch.c,v 1.25 2010/03/28 13:16:08 ed Exp $"); + #ifndef lint -__COPYRIGHT("@(#) Copyright (c) 1993\n\ - The Regents of the University of California. All rights reserved.\n"); -#endif /* not lint */ +__used static const char copyright[] = +"@(#) Copyright (c) 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif #ifndef lint -#if 0 -static char sccsid[] = "@(#)touch.c 8.2 (Berkeley) 4/28/95"; +__used static const char sccsid[] = "@(#)touch.c 8.1 (Berkeley) 6/6/93"; #endif -__RCSID("$NetBSD: touch.c,v 1.22 1998/08/25 20:59:42 ross Exp $"); -#endif /* not lint */ #include #include #include +#include #include #include #include +#include #include #include #include -#include #include -#include #include -int main __P((int, char **)); -int rw __P((char *, struct stat *, int)); -void stime_arg1 __P((char *, struct timeval *)); -void stime_arg2 __P((char *, int, struct timeval *)); -void stime_file __P((char *, struct timeval *)); -void usage __P((void)); +typedef struct { + struct timespec mtime; + struct timespec atime; +} set_ts; + +int rw(char *, struct stat *, int); +void stime_arg1(char *, set_ts *); +void stime_arg2(char *, int, set_ts *); +void stime_file(char *, set_ts *); +int timeoffset(char *); +void usage(char *); int -main(argc, argv) - int argc; - char *argv[]; +main(int argc, char *argv[]) { struct stat sb; - struct timeval tv[2]; - int aflag, cflag, fflag, hflag, mflag, ch, fd, len, rval, timeset; + int (*stat_f)(const char *, struct stat *); + int (*utimes_f)(const char *, const struct timeval *); + int Aflag, aflag, cflag, fflag, mflag, ch, fd, len, rval, timeset; char *p; - int (*change_file_times) __P((const char *, const struct timeval *)); - int (*get_file_status) __P((const char *, struct stat *)); - - setlocale(LC_ALL, ""); - - aflag = cflag = fflag = hflag = mflag = timeset = 0; - if (gettimeofday(&tv[0], NULL)) - err(1, "gettimeofday"); - - while ((ch = getopt(argc, argv, "acfhmr:t:")) != -1) + char *myname; + struct attrlist ts_req = { + .bitmapcount = ATTR_BIT_MAP_COUNT, + .commonattr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME, + }; + set_ts ts_struct = {}; + + myname = basename(argv[0]); + Aflag = aflag = cflag = fflag = mflag = timeset = 0; + stat_f = stat; + utimes_f = utimes; + if (clock_gettime(CLOCK_REALTIME, &ts_struct.mtime)) + err(1, "clock_gettime"); + ts_struct.atime = ts_struct.mtime; + + while ((ch = getopt(argc, argv, "A:acfhmr:t:")) != -1) switch(ch) { + case 'A': + Aflag = timeoffset(optarg); + break; case 'a': aflag = 1; break; @@ -97,69 +109,75 @@ main(argc, argv) case 'f': fflag = 1; break; -#ifndef __APPLE__ case 'h': - hflag = 1; + cflag = 1; + stat_f = lstat; + utimes_f = lutimes; break; -#endif case 'm': mflag = 1; break; case 'r': timeset = 1; - stime_file(optarg, tv); + stime_file(optarg, &ts_struct); break; case 't': timeset = 1; - stime_arg1(optarg, tv); + stime_arg1(optarg, &ts_struct); break; case '?': default: - usage(); + usage(myname); } argc -= optind; argv += optind; - /* Default is both -a and -m. */ if (aflag == 0 && mflag == 0) aflag = mflag = 1; -#ifndef __APPLE__ - if (hflag) { - cflag = 1; /* Don't create new file */ - change_file_times = lutimes; - get_file_status = lstat; + if (timeset) { + if (Aflag) { + /* + * We're setting the time to an offset from a specified + * time. God knows why, but it means that we can set + * that time once and for all here. + */ + if (aflag) + ts_struct.atime.tv_sec += Aflag; + if (mflag) + ts_struct.mtime.tv_sec += Aflag; + Aflag = 0; /* done our job */ + } } else { -#endif - change_file_times = utimes; - get_file_status = stat; -#ifndef __APPLE__ - } -#endif - - /* - * If no -r or -t flag, at least two operands, the first of which - * is an 8 or 10 digit number, use the obsolete time specification. - */ - if (!timeset && argc > 1) { - (void)strtol(argv[0], &p, 10); - len = p - argv[0]; - if (*p == '\0' && (len == 8 || len == 10)) { - timeset = 1; - stime_arg2(*argv++, len == 10, tv); + /* + * If no -r or -t flag, at least two operands, the first of + * which is an 8 or 10 digit number, use the obsolete time + * specification, otherwise use the current time. + */ + if (argc > 1) { + strtol(argv[0], &p, 10); + len = p - argv[0]; + if (*p == '\0' && (len == 8 || len == 10)) { + timeset = 1; + stime_arg2(*argv++, len == 10, &ts_struct); + } } } - /* Otherwise use the current time of day. */ - if (!timeset) - tv[1] = tv[0]; - if (*argv == NULL) - usage(); + usage(myname); + + if (Aflag) + cflag = 1; for (rval = 0; *argv; ++argv) { /* See if the file exists. */ - if ((*get_file_status)(*argv, &sb)) { + if (stat_f(*argv, &sb) != 0) { + if (errno != ENOENT) { + rval = 1; + warn("%s", *argv); + continue; + } if (!cflag) { /* Create the file. */ fd = open(*argv, @@ -176,19 +194,36 @@ main(argc, argv) } else continue; } + if (!aflag) - TIMESPEC_TO_TIMEVAL(&tv[0], &sb.st_atimespec); + ts_struct.atime = sb.st_atimespec; if (!mflag) - TIMESPEC_TO_TIMEVAL(&tv[1], &sb.st_mtimespec); + ts_struct.mtime = sb.st_mtimespec; + + /* + * We're adjusting the times based on the file times, not a + * specified time (that gets handled above). + */ + if (Aflag) { + if (aflag) { + ts_struct.atime = sb.st_atimespec; + ts_struct.atime.tv_sec += Aflag; + } + if (mflag) { + ts_struct.mtime = sb.st_mtimespec; + ts_struct.mtime.tv_sec += Aflag; + } + } - /* Try utimes(2). */ - if (!(*change_file_times)(*argv, tv)) + /* Try setattrlist(2). */ + if (!setattrlist(*argv, &ts_req, &ts_struct, sizeof(ts_struct), 0)) continue; /* If the user specified a time, nothing else we can do. */ - if (timeset) { + if (timeset || Aflag) { rval = 1; warn("%s", *argv); + continue; } /* @@ -197,30 +232,33 @@ main(argc, argv) * The permission checks are different, too, in that the * ability to write the file is sufficient. Take a shot. */ - if (!(*change_file_times)(*argv, NULL)) + if (!utimes_f(*argv, NULL)) continue; /* Try reading/writing. */ - if (!S_ISLNK(sb.st_mode) && rw(*argv, &sb, fflag)) + if (!S_ISLNK(sb.st_mode) && !S_ISDIR(sb.st_mode)) { + if (rw(*argv, &sb, fflag)) + rval = 1; + } else { rval = 1; + warn("%s", *argv); + } } exit(rval); } -#define ATOI2(s) ((s) += 2, ((s)[-2] - '0') * 10 + ((s)[-1] - '0')) +#define ATOI2(ar) ((ar)[0] - '0') * 10 + ((ar)[1] - '0'); (ar) += 2; void -stime_arg1(arg, tvp) - char *arg; - struct timeval *tvp; +stime_arg1(char *arg, set_ts *tsp) { + time_t now; struct tm *t; - time_t tmptime; int yearset; char *p; /* Start with the current time. */ - tmptime = tvp[0].tv_sec; - if ((t = localtime(&tmptime)) == NULL) + now = tsp->atime.tv_sec; + if ((t = localtime(&now)) == NULL) err(1, "localtime"); /* [[CC]YY]MMDDhhmm[.SS] */ if ((p = strchr(arg, '.')) == NULL) @@ -231,35 +269,32 @@ stime_arg1(arg, tvp) *p++ = '\0'; t->tm_sec = ATOI2(p); } - + yearset = 0; - switch (strlen(arg)) { + switch(strlen(arg)) { case 12: /* CCYYMMDDhhmm */ - t->tm_year = ATOI2(arg) * 100 - TM_YEAR_BASE; + t->tm_year = ATOI2(arg); + t->tm_year *= 100; yearset = 1; - /* FALLTHOUGH */ + /* FALLTHROUGH */ case 10: /* YYMMDDhhmm */ if (yearset) { - t->tm_year += ATOI2(arg); + yearset = ATOI2(arg); + t->tm_year += yearset; } else { yearset = ATOI2(arg); if (yearset < 69) - t->tm_year = yearset + 2000 - TM_YEAR_BASE; + t->tm_year = yearset + 2000; else - t->tm_year = yearset + 1900 - TM_YEAR_BASE; + t->tm_year = yearset + 1900; } + t->tm_year -= 1900; /* Convert to UNIX time. */ /* FALLTHROUGH */ case 8: /* MMDDhhmm */ t->tm_mon = ATOI2(arg); --t->tm_mon; /* Convert from 01-12 to 00-11 */ - /* FALLTHROUGH */ - case 6: t->tm_mday = ATOI2(arg); - /* FALLTHROUGH */ - case 4: t->tm_hour = ATOI2(arg); - /* FALLTHROUGH */ - case 2: t->tm_min = ATOI2(arg); break; default: @@ -267,25 +302,22 @@ stime_arg1(arg, tvp) } t->tm_isdst = -1; /* Figure out DST. */ - tvp[0].tv_sec = tvp[1].tv_sec = mktime(t); - if (tvp[0].tv_sec == -1) + tsp->atime.tv_sec = tsp->mtime.tv_sec = mktime(t); + if (tsp->atime.tv_sec == -1) terr: errx(1, "out of range or illegal time specification: [[CC]YY]MMDDhhmm[.SS]"); - tvp[0].tv_usec = tvp[1].tv_usec = 0; + tsp->atime.tv_nsec = tsp->mtime.tv_nsec = 0; } void -stime_arg2(arg, year, tvp) - char *arg; - int year; - struct timeval *tvp; +stime_arg2(char *arg, int year, set_ts *tsp) { + time_t now; struct tm *t; - time_t tmptime; /* Start with the current time. */ - tmptime = tvp[0].tv_sec; - if ((t = localtime(&tmptime)) == NULL) + now = tsp->atime.tv_sec; + if ((t = localtime(&now)) == NULL) err(1, "localtime"); t->tm_mon = ATOI2(arg); /* MMDDhhmm[yy] */ @@ -294,46 +326,69 @@ stime_arg2(arg, year, tvp) t->tm_hour = ATOI2(arg); t->tm_min = ATOI2(arg); if (year) { - year = ATOI2(arg); - if (year < 69) - t->tm_year = year + 2000 - TM_YEAR_BASE; - else - t->tm_year = year + 1900 - TM_YEAR_BASE; + t->tm_year = ATOI2(arg); + if (t->tm_year < 39) /* support 2000-2038 not 1902-1969 */ + t->tm_year += 100; } t->tm_isdst = -1; /* Figure out DST. */ - tvp[0].tv_sec = tvp[1].tv_sec = mktime(t); - if (tvp[0].tv_sec == -1) + tsp->atime.tv_sec = tsp->mtime.tv_sec = mktime(t); + if (tsp->atime.tv_sec == -1) errx(1, "out of range or illegal time specification: MMDDhhmm[yy]"); - tvp[0].tv_usec = tvp[1].tv_usec = 0; + tsp->atime.tv_nsec = tsp->mtime.tv_nsec = 0; +} + +/* Calculate a time offset in seconds, given an arg of the format [-]HHMMSS. */ +int +timeoffset(char *arg) +{ + int offset; + int isneg; + + offset = 0; + isneg = *arg == '-'; + if (isneg) + arg++; + switch (strlen(arg)) { + default: /* invalid */ + errx(1, "Invalid offset spec, must be [-][[HH]MM]SS"); + + case 6: /* HHMMSS */ + offset = ATOI2(arg); + /* FALLTHROUGH */ + case 4: /* MMSS */ + offset = offset * 60 + ATOI2(arg); + /* FALLTHROUGH */ + case 2: /* SS */ + offset = offset * 60 + ATOI2(arg); + } + if (isneg) + return (-offset); + else + return (offset); } void -stime_file(fname, tvp) - char *fname; - struct timeval *tvp; +stime_file(char *fname, set_ts *ts_struct) { struct stat sb; if (stat(fname, &sb)) err(1, "%s", fname); - TIMESPEC_TO_TIMEVAL(&tvp[0], &sb.st_atimespec); - TIMESPEC_TO_TIMEVAL(&tvp[1], &sb.st_mtimespec); + ts_struct->atime = sb.st_atimespec; + ts_struct->mtime = sb.st_mtimespec; } int -rw(fname, sbp, force) - char *fname; - struct stat *sbp; - int force; +rw(char *fname, struct stat *sbp, int force) { int fd, needed_chmod, rval; u_char byte; - /* Try regular files and directories. */ - if (!S_ISREG(sbp->st_mode) && !S_ISDIR(sbp->st_mode)) { + /* Try regular files. */ + if (!S_ISREG(sbp->st_mode)) { warnx("%s: %s", fname, strerror(EFTYPE)); return (1); } @@ -375,15 +430,10 @@ err: rval = 1; return (rval); } -__dead void -usage() +void +usage(char *myname) { -#ifndef __APPLE__ - (void)fprintf(stderr, - "usage: touch [-acfhm] [-r file] [-t time] file ...\n"); -#else - (void)fprintf(stderr, - "usage: touch [-acfm] [-r file] [-t time] file ...\n"); -#endif + fprintf(stderr, "usage:\n" "%s [-A [-][[hh]mm]SS] [-acfhm] [-r file] " + "[-t [[CC]YY]MMDDhhmm[.SS]] file ...\n", myname); exit(1); }