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
parent
cf1189f5a7
commit
7b5d59464f
@ -140,9 +140,10 @@ const char date_usage[] =
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" or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\nDisplays the current time in the given FORMAT, or sets the system date.\n"
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"\nOptions:\n\t-R\tOutputs RFC-822 compliant date string\n"
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"\t-s\tSets time described by STRING\n"
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"\t-u\tPrints or sets Coordinated Universal Time\n"
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"\nOptions:\n\t-R\t\tOutputs RFC-822 compliant date string\n"
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"\t-d STRING\tdisplay time described by STRING, not `now'\n"
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"\t-s\t\tSets time described by STRING\n"
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"\t-u\t\tPrints or sets Coordinated Universal Time\n"
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#endif
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;
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#endif
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@ -74,73 +74,57 @@ struct tm *date_conv_time(struct tm *tm_time, const char *t_string)
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struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
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{
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struct tm itm_time, jtm_time, ktm_time, ltm_time, mtm_time, ntm_time;
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itm_time = *tm_time;
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jtm_time = *tm_time;
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ktm_time = *tm_time;
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ltm_time = *tm_time;
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mtm_time = *tm_time;
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ntm_time = *tm_time;
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struct tm t;
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/* Parse input and assign appropriately to tm_time */
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if (sscanf(t_string, "%d:%d:%d",
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&itm_time.tm_hour, &itm_time.tm_min, &itm_time.tm_sec) == 3) {
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if (t=*tm_time,sscanf(t_string, "%d:%d:%d",
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&t.tm_hour, &t.tm_min, &t.tm_sec) == 3) {
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/* no adjustments needed */
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*tm_time = itm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d:%d",
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&t.tm_hour, &t.tm_min) == 2) {
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/* no adjustments needed */
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} else if (sscanf(t_string, "%d:%d",
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&jtm_time.tm_hour, &jtm_time.tm_min) == 2) {
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*tm_time = jtm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d:%d",
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour,
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&t.tm_min, &t.tm_sec) == 5) {
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} else if (sscanf(t_string, "%d.%d-%d:%d:%d",
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&ktm_time.tm_mon,
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&ktm_time.tm_mday,
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&ktm_time.tm_hour,
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&ktm_time.tm_min, &ktm_time.tm_sec) == 5) {
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ktm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d",
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour, &t.tm_min) == 4) {
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} else if (sscanf(t_string, "%d.%d-%d:%d",
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<m_time.tm_mon,
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<m_time.tm_mday,
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<m_time.tm_hour, <m_time.tm_min) == 4) {
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ltm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d:%d",
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&t.tm_year,
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour,
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&t.tm_min, &t.tm_sec) == 6) {
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} else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
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&mtm_time.tm_year,
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&mtm_time.tm_mon,
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&mtm_time.tm_mday,
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&mtm_time.tm_hour,
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&mtm_time.tm_min, &mtm_time.tm_sec) == 6) {
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t.tm_year -= 1900; /* Adjust years */
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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mtm_time.tm_year -= 1900; /* Adjust years */
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mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = mtm_time;
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return (tm_time);
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} else if (sscanf(t_string, "%d.%d.%d-%d:%d",
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&ntm_time.tm_year,
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&ntm_time.tm_mon,
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&ntm_time.tm_mday,
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&ntm_time.tm_hour, &ntm_time.tm_min) == 5) {
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ntm_time.tm_year -= 1900; /* Adjust years */
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ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ntm_time;
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return (tm_time);
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}
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} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d",
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&t.tm_year,
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour, &t.tm_min) == 5) {
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t.tm_year -= 1900; /* Adjust years */
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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} else {
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fatalError(invalid_date, t_string);
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}
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*tm_time = t;
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return (tm_time);
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}
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90
date.c
90
date.c
@ -74,73 +74,57 @@ struct tm *date_conv_time(struct tm *tm_time, const char *t_string)
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struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
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{
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struct tm itm_time, jtm_time, ktm_time, ltm_time, mtm_time, ntm_time;
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itm_time = *tm_time;
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jtm_time = *tm_time;
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ktm_time = *tm_time;
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ltm_time = *tm_time;
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mtm_time = *tm_time;
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ntm_time = *tm_time;
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struct tm t;
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/* Parse input and assign appropriately to tm_time */
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if (sscanf(t_string, "%d:%d:%d",
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&itm_time.tm_hour, &itm_time.tm_min, &itm_time.tm_sec) == 3) {
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if (t=*tm_time,sscanf(t_string, "%d:%d:%d",
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&t.tm_hour, &t.tm_min, &t.tm_sec) == 3) {
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/* no adjustments needed */
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*tm_time = itm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d:%d",
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&t.tm_hour, &t.tm_min) == 2) {
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/* no adjustments needed */
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} else if (sscanf(t_string, "%d:%d",
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&jtm_time.tm_hour, &jtm_time.tm_min) == 2) {
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*tm_time = jtm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d:%d",
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour,
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&t.tm_min, &t.tm_sec) == 5) {
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} else if (sscanf(t_string, "%d.%d-%d:%d:%d",
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&ktm_time.tm_mon,
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&ktm_time.tm_mday,
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&ktm_time.tm_hour,
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&ktm_time.tm_min, &ktm_time.tm_sec) == 5) {
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ktm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d",
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour, &t.tm_min) == 4) {
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} else if (sscanf(t_string, "%d.%d-%d:%d",
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<m_time.tm_mon,
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<m_time.tm_mday,
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<m_time.tm_hour, <m_time.tm_min) == 4) {
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ltm_time;
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return (tm_time);
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} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d:%d",
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&t.tm_year,
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour,
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&t.tm_min, &t.tm_sec) == 6) {
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} else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
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&mtm_time.tm_year,
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&mtm_time.tm_mon,
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&mtm_time.tm_mday,
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&mtm_time.tm_hour,
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&mtm_time.tm_min, &mtm_time.tm_sec) == 6) {
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t.tm_year -= 1900; /* Adjust years */
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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mtm_time.tm_year -= 1900; /* Adjust years */
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mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = mtm_time;
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return (tm_time);
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} else if (sscanf(t_string, "%d.%d.%d-%d:%d",
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&ntm_time.tm_year,
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&ntm_time.tm_mon,
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&ntm_time.tm_mday,
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&ntm_time.tm_hour, &ntm_time.tm_min) == 5) {
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ntm_time.tm_year -= 1900; /* Adjust years */
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ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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*tm_time = ntm_time;
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return (tm_time);
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}
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} else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d",
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&t.tm_year,
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&t.tm_mon,
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&t.tm_mday,
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&t.tm_hour, &t.tm_min) == 5) {
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t.tm_year -= 1900; /* Adjust years */
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t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
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} else {
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fatalError(invalid_date, t_string);
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}
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*tm_time = t;
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return (tm_time);
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}
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7
usage.c
7
usage.c
@ -140,9 +140,10 @@ const char date_usage[] =
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" or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n"
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#ifndef BB_FEATURE_TRIVIAL_HELP
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"\nDisplays the current time in the given FORMAT, or sets the system date.\n"
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"\nOptions:\n\t-R\tOutputs RFC-822 compliant date string\n"
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"\t-s\tSets time described by STRING\n"
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"\t-u\tPrints or sets Coordinated Universal Time\n"
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"\nOptions:\n\t-R\t\tOutputs RFC-822 compliant date string\n"
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"\t-d STRING\tdisplay time described by STRING, not `now'\n"
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"\t-s\t\tSets time described by STRING\n"
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"\t-u\t\tPrints or sets Coordinated Universal Time\n"
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#endif
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;
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#endif
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