Apply a patch from Larry Doolittle <ldoolitt@recycle.lbl.gov> to close

bug 1069.  This shaves about 100 bytes from the executable, and about
200 bytes of heap usage.  Also document the "-d" option in the usage
message.
This commit is contained in:
Eric Andersen 2000-11-29 22:01:42 +00:00
parent cf1189f5a7
commit 7b5d59464f
4 changed files with 82 additions and 112 deletions

View File

@ -140,9 +140,10 @@ const char date_usage[] =
" or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nDisplays the current time in the given FORMAT, or sets the system date.\n"
"\nOptions:\n\t-R\tOutputs RFC-822 compliant date string\n"
"\t-s\tSets time described by STRING\n"
"\t-u\tPrints or sets Coordinated Universal Time\n"
"\nOptions:\n\t-R\t\tOutputs RFC-822 compliant date string\n"
"\t-d STRING\tdisplay time described by STRING, not `now'\n"
"\t-s\t\tSets time described by STRING\n"
"\t-u\t\tPrints or sets Coordinated Universal Time\n"
#endif
;
#endif

View File

@ -74,73 +74,57 @@ struct tm *date_conv_time(struct tm *tm_time, const char *t_string)
struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
{
struct tm itm_time, jtm_time, ktm_time, ltm_time, mtm_time, ntm_time;
itm_time = *tm_time;
jtm_time = *tm_time;
ktm_time = *tm_time;
ltm_time = *tm_time;
mtm_time = *tm_time;
ntm_time = *tm_time;
struct tm t;
/* Parse input and assign appropriately to tm_time */
if (sscanf(t_string, "%d:%d:%d",
&itm_time.tm_hour, &itm_time.tm_min, &itm_time.tm_sec) == 3) {
if (t=*tm_time,sscanf(t_string, "%d:%d:%d",
&t.tm_hour, &t.tm_min, &t.tm_sec) == 3) {
/* no adjustments needed */
*tm_time = itm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d:%d",
&t.tm_hour, &t.tm_min) == 2) {
/* no adjustments needed */
} else if (sscanf(t_string, "%d:%d",
&jtm_time.tm_hour, &jtm_time.tm_min) == 2) {
*tm_time = jtm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d:%d",
&t.tm_mon,
&t.tm_mday,
&t.tm_hour,
&t.tm_min, &t.tm_sec) == 5) {
} else if (sscanf(t_string, "%d.%d-%d:%d:%d",
&ktm_time.tm_mon,
&ktm_time.tm_mday,
&ktm_time.tm_hour,
&ktm_time.tm_min, &ktm_time.tm_sec) == 5) {
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ktm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d",
&t.tm_mon,
&t.tm_mday,
&t.tm_hour, &t.tm_min) == 4) {
} else if (sscanf(t_string, "%d.%d-%d:%d",
&ltm_time.tm_mon,
&ltm_time.tm_mday,
&ltm_time.tm_hour, &ltm_time.tm_min) == 4) {
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ltm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d:%d",
&t.tm_year,
&t.tm_mon,
&t.tm_mday,
&t.tm_hour,
&t.tm_min, &t.tm_sec) == 6) {
} else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
&mtm_time.tm_year,
&mtm_time.tm_mon,
&mtm_time.tm_mday,
&mtm_time.tm_hour,
&mtm_time.tm_min, &mtm_time.tm_sec) == 6) {
t.tm_year -= 1900; /* Adjust years */
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
mtm_time.tm_year -= 1900; /* Adjust years */
mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = mtm_time;
return (tm_time);
} else if (sscanf(t_string, "%d.%d.%d-%d:%d",
&ntm_time.tm_year,
&ntm_time.tm_mon,
&ntm_time.tm_mday,
&ntm_time.tm_hour, &ntm_time.tm_min) == 5) {
ntm_time.tm_year -= 1900; /* Adjust years */
ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ntm_time;
return (tm_time);
}
} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d",
&t.tm_year,
&t.tm_mon,
&t.tm_mday,
&t.tm_hour, &t.tm_min) == 5) {
t.tm_year -= 1900; /* Adjust years */
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
} else {
fatalError(invalid_date, t_string);
}
*tm_time = t;
return (tm_time);
}

90
date.c
View File

@ -74,73 +74,57 @@ struct tm *date_conv_time(struct tm *tm_time, const char *t_string)
struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
{
struct tm itm_time, jtm_time, ktm_time, ltm_time, mtm_time, ntm_time;
itm_time = *tm_time;
jtm_time = *tm_time;
ktm_time = *tm_time;
ltm_time = *tm_time;
mtm_time = *tm_time;
ntm_time = *tm_time;
struct tm t;
/* Parse input and assign appropriately to tm_time */
if (sscanf(t_string, "%d:%d:%d",
&itm_time.tm_hour, &itm_time.tm_min, &itm_time.tm_sec) == 3) {
if (t=*tm_time,sscanf(t_string, "%d:%d:%d",
&t.tm_hour, &t.tm_min, &t.tm_sec) == 3) {
/* no adjustments needed */
*tm_time = itm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d:%d",
&t.tm_hour, &t.tm_min) == 2) {
/* no adjustments needed */
} else if (sscanf(t_string, "%d:%d",
&jtm_time.tm_hour, &jtm_time.tm_min) == 2) {
*tm_time = jtm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d:%d",
&t.tm_mon,
&t.tm_mday,
&t.tm_hour,
&t.tm_min, &t.tm_sec) == 5) {
} else if (sscanf(t_string, "%d.%d-%d:%d:%d",
&ktm_time.tm_mon,
&ktm_time.tm_mday,
&ktm_time.tm_hour,
&ktm_time.tm_min, &ktm_time.tm_sec) == 5) {
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ktm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d",
&t.tm_mon,
&t.tm_mday,
&t.tm_hour, &t.tm_min) == 4) {
} else if (sscanf(t_string, "%d.%d-%d:%d",
&ltm_time.tm_mon,
&ltm_time.tm_mday,
&ltm_time.tm_hour, &ltm_time.tm_min) == 4) {
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ltm_time;
return (tm_time);
} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d:%d",
&t.tm_year,
&t.tm_mon,
&t.tm_mday,
&t.tm_hour,
&t.tm_min, &t.tm_sec) == 6) {
} else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
&mtm_time.tm_year,
&mtm_time.tm_mon,
&mtm_time.tm_mday,
&mtm_time.tm_hour,
&mtm_time.tm_min, &mtm_time.tm_sec) == 6) {
t.tm_year -= 1900; /* Adjust years */
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
mtm_time.tm_year -= 1900; /* Adjust years */
mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = mtm_time;
return (tm_time);
} else if (sscanf(t_string, "%d.%d.%d-%d:%d",
&ntm_time.tm_year,
&ntm_time.tm_mon,
&ntm_time.tm_mday,
&ntm_time.tm_hour, &ntm_time.tm_min) == 5) {
ntm_time.tm_year -= 1900; /* Adjust years */
ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
*tm_time = ntm_time;
return (tm_time);
}
} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d",
&t.tm_year,
&t.tm_mon,
&t.tm_mday,
&t.tm_hour, &t.tm_min) == 5) {
t.tm_year -= 1900; /* Adjust years */
t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
} else {
fatalError(invalid_date, t_string);
}
*tm_time = t;
return (tm_time);
}

View File

@ -140,9 +140,10 @@ const char date_usage[] =
" or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n"
#ifndef BB_FEATURE_TRIVIAL_HELP
"\nDisplays the current time in the given FORMAT, or sets the system date.\n"
"\nOptions:\n\t-R\tOutputs RFC-822 compliant date string\n"
"\t-s\tSets time described by STRING\n"
"\t-u\tPrints or sets Coordinated Universal Time\n"
"\nOptions:\n\t-R\t\tOutputs RFC-822 compliant date string\n"
"\t-d STRING\tdisplay time described by STRING, not `now'\n"
"\t-s\t\tSets time described by STRING\n"
"\t-u\t\tPrints or sets Coordinated Universal Time\n"
#endif
;
#endif