diff options
Diffstat (limited to 'toys/posix/touch.c')
| -rw-r--r-- | toys/posix/touch.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/toys/posix/touch.c b/toys/posix/touch.c index 71ddc434..298a9365 100644 --- a/toys/posix/touch.c +++ b/toys/posix/touch.c @@ -18,7 +18,7 @@ config TOUCH -m change modification time -c don't create file -d set time to DATE (in YYYY-MM-DDThh:mm:SS[.frac][tz] format) - -t set time to TIME (in [[CC]YY]MMDDhhmm[.ss][frac] format) + -t set time to TIME (in [[CC]YY]MMDDhhmm[.ss] format) -r set time same as reference FILE */ @@ -80,10 +80,11 @@ void touch_main(void) localtime_r(&(tv->tv_sec), &tm); } s = strptime(date, "%Y-%m-%dT%T", &tm); - if (s && *s=='.') { + if (s && *s=='.' && isdigit(s[1])) { sscanf(s, ".%d%n", &i, &len); s += len; tv->tv_usec = i; + while (len++ < 7) tv->tv_usec *= 10; } } else s = 0; @@ -92,17 +93,15 @@ void touch_main(void) } else { strcpy(toybuf, "%Y%m%d%H%M"); date = TT.time; + i = ((s = strchr(date, '.'))) ? s-date : strlen(date); + if (i < 8 || i%2) error_exit("bad '%s'", date); for (i=0;i<3;i++) { s = strptime(date, toybuf+(i&2), &tm); if (s) break; toybuf[1]='y'; } - if (s && *s=='.') { - int count = sscanf(s, ".%2d%u%n", &(tm.tm_sec), &i, &len); - - if (count==2) tv->tv_usec = i; + if (s && *s=='.' && sscanf(s, ".%2u%n", &(tm.tm_sec), &len) == 1) s += len; - } } errno = 0; @@ -125,7 +124,7 @@ void touch_main(void) if ((flag == (FLAG_m|FLAG_a) || !fetch(*ss, tv, flag)) && !utimes(*ss, tv)) ss++; else if (toys.optflags & FLAG_c) ss++; - else if (-1 != (fd = open(*ss, O_CREAT, 0666))) close(fd); + else if (access(*ss, F_OK) && (-1 != (fd = open(*ss, O_CREAT, 0666)))) close(fd); else perror_msg("'%s'", *ss++); } } |