coreutils/lib/utimens.c

35 #include "timespec.h"
78    timespec can be used for utimensat (after possibly modifying it to
80    timespec needs further adjustment based on stat results: 1 if any
83    timespec is out of range.  */
85 validate_timespec (struct timespec timespec[2])
89   assert (timespec);
90   if ((timespec[0].tv_nsec != UTIME_NOW
91        && timespec[0].tv_nsec != UTIME_OMIT
92        && (timespec[0].tv_nsec < 0 || 1000000000 <= timespec[0].tv_nsec))
93       || (timespec[1].tv_nsec != UTIME_NOW
94           && timespec[1].tv_nsec != UTIME_OMIT
95           && (timespec[1].tv_nsec < 0 || 1000000000 <= timespec[1].tv_nsec)))
104   if (timespec[0].tv_nsec == UTIME_NOW
105       || timespec[0].tv_nsec == UTIME_OMIT)
107       timespec[0].tv_sec = 0;
109       if (timespec[0].tv_nsec == UTIME_OMIT)
112   if (timespec[1].tv_nsec == UTIME_NOW
113       || timespec[1].tv_nsec == UTIME_OMIT)
115       timespec[1].tv_sec = 0;
117       if (timespec[1].tv_nsec == UTIME_OMIT)
130 update_timespec (struct stat const *statbuf, struct timespec *ts[2])
132   struct timespec *timespec = *ts;
133   if (timespec[0].tv_nsec == UTIME_OMIT
134       && timespec[1].tv_nsec == UTIME_OMIT)
136   if (timespec[0].tv_nsec == UTIME_NOW
137       && timespec[1].tv_nsec == UTIME_NOW)
143   if (timespec[0].tv_nsec == UTIME_OMIT)
144     timespec[0] = get_stat_atime (statbuf);
145   else if (timespec[0].tv_nsec == UTIME_NOW)
146     gettime (&timespec[0]);
148   if (timespec[1].tv_nsec == UTIME_OMIT)
149     timespec[1] = get_stat_mtime (statbuf);
150   else if (timespec[1].tv_nsec == UTIME_NOW)
151     gettime (&timespec[1]);
167 fdutimens (char const *file, int fd, struct timespec const timespec[2])
169   struct timespec adjusted_timespec[2];
170   struct timespec *ts = timespec ? adjusted_timespec : NULL;
176       adjusted_timespec[0] = timespec[0];
177       adjusted_timespec[1] = timespec[1];
384 gl_futimens (int fd, char const *file, struct timespec const timespec[2])
386   return fdutimens (file, fd, timespec);
392 utimens (char const *file, struct timespec const timespec[2])
394   return fdutimens (file, -1, timespec);
402 lutimens (char const *file, struct timespec const timespec[2])
404   struct timespec adjusted_timespec[2];
405   struct timespec *ts = timespec ? adjusted_timespec : NULL;
411       adjusted_timespec[0] = timespec[0];
412       adjusted_timespec[1] = timespec[1];