diff options
Diffstat (limited to 'timezone/zdump.c')
| -rw-r--r-- | timezone/zdump.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/timezone/zdump.c b/timezone/zdump.c index 82c91e485e..7122bbf891 100644 --- a/timezone/zdump.c +++ b/timezone/zdump.c @@ -1,4 +1,9 @@ -static char elsieid[] = "@(#)zdump.c 8.6"; +/* +** This file is in the public domain, so clarified as of +** 2009-05-17 by Arthur David Olson. +*/ + +static char elsieid[] = "@(#)zdump.c 8.9"; /* ** This code has been made independent of the rest of the time @@ -230,6 +235,17 @@ const char * const zone; warned = TRUE; } +static void +usage(const char *progname, FILE *stream, int status) +{ + (void) fprintf(stream, +_("%s: usage is %s [ --version ] [ --help ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n\ +\n\ +Report bugs to tz@elsie.nci.nih.gov.\n"), + progname, progname); + exit(status); +} + int main(argc, argv) int argc; @@ -266,6 +282,8 @@ char * argv[]; if (strcmp(argv[i], "--version") == 0) { (void) printf("%s\n", elsieid); exit(EXIT_SUCCESS); + } else if (strcmp(argv[i], "--help") == 0) { + usage(progname, stdout, EXIT_SUCCESS); } vflag = 0; cutarg = NULL; @@ -275,10 +293,7 @@ char * argv[]; else cutarg = optarg; if ((c != EOF && c != -1) || (optind == argc - 1 && strcmp(argv[optind], "=") == 0)) { - (void) fprintf(stderr, -_("%s: usage is %s [ --version ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n"), - progname, progname); - exit(EXIT_FAILURE); + usage(progname, stderr, EXIT_FAILURE); } if (vflag) { if (cutarg != NULL) { @@ -349,13 +364,9 @@ _("%s: usage is %s [ --version ] [ -v ] [ -c [loyear,]hiyear ] zonename ...\n"), (void) strncpy(buf, abbr(&tm), (sizeof buf) - 1); } for ( ; ; ) { - if (t >= cuthitime) + if (t >= cuthitime || t >= cuthitime - SECSPERHOUR * 12) break; newt = t + SECSPERHOUR * 12; - if (newt >= cuthitime) - break; - if (newt <= t) - break; newtmp = localtime(&newt); if (newtmp != NULL) newtm = *newtmp; |