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-rw-r--r--timezone/zic.c404
1 files changed, 132 insertions, 272 deletions
diff --git a/timezone/zic.c b/timezone/zic.c
index 1ea7b18..64af1b2 100644
--- a/timezone/zic.c
+++ b/timezone/zic.c
@@ -3,8 +3,7 @@
** 2006-07-17 by Arthur David Olson.
*/
-static char elsieid[] = "@(#)zic.c 8.25";
-
+#include "version.h"
#include "private.h"
#include "locale.h"
#include "tzfile.h"
@@ -111,17 +110,8 @@ static int addtype(long gmtoff, const char * abbr, int isdst,
static void leapadd(zic_t t, int positive, int rolling, int count);
static void adjleap(void);
static void associate(void);
-static int ciequal(const char * ap, const char * bp);
-static void convert(long val, char * buf);
-static void convert64(zic_t val, char * buf);
static void dolink(const char * fromfield, const char * tofield);
-static void doabbr(char * abbr, const char * format,
- const char * letters, int isdst, int doquotes);
-static void eat(const char * name, int num);
-static void eats(const char * name, int num,
- const char * rname, int rnum);
static long eitol(int i);
-static void error(const char * message);
static char ** getfields(char * buf);
static long gethms(const char * string, const char * errstrng,
int signable);
@@ -132,32 +122,18 @@ static void inrule(char ** fields, int nfields);
static int inzcont(char ** fields, int nfields);
static int inzone(char ** fields, int nfields);
static int inzsub(char ** fields, int nfields, int iscont);
-static int is32(zic_t x);
-static int itsabbr(const char * abbr, const char * word);
static int itsdir(const char * name);
static int lowerit(int c);
-static char * memcheck(char * tocheck);
static int mkdirs(char * filename);
static void newabbr(const char * abbr);
static long oadd(long t1, long t2);
static void outzone(const struct zone * zp, int ntzones);
-static void puttzcode(long code, FILE * fp);
-static void puttzcode64(zic_t code, FILE * fp);
-static int rcomp(const void * leftp, const void * rightp);
static zic_t rpytime(const struct rule * rp, int wantedy);
static void rulesub(struct rule * rp,
const char * loyearp, const char * hiyearp,
const char * typep, const char * monthp,
const char * dayp, const char * timep);
-static int stringoffset(char * result, long offset);
-static int stringrule(char * result, const struct rule * rp,
- long dstoff, long gmtoff);
-static void stringzone(char * result,
- const struct zone * zp, int ntzones);
-static void setboundaries(void);
static zic_t tadd(zic_t t1, long t2);
-static void usage(FILE *stream, int status);
-static void writezone(const char * name, const char * string);
static int yearistype(int year, const char * type);
static int charcnt;
@@ -170,9 +146,7 @@ static int leapmaxyear;
static int linenum;
static int max_abbrvar_len;
static int max_format_len;
-static zic_t max_time;
static int max_year;
-static zic_t min_time;
static int min_year;
static int noise;
static const char * rfilename;
@@ -378,9 +352,8 @@ static char roll[TZ_MAX_LEAPS];
** Memory allocation.
*/
-static char *
-memcheck(ptr)
-char * const ptr;
+static ATTRIBUTE_PURE void *
+memcheck(void *const ptr)
{
if (ptr == NULL) {
const char *e = strerror(errno);
@@ -392,8 +365,8 @@ char * const ptr;
return ptr;
}
-#define emalloc(size) memcheck(imalloc(size))
-#define erealloc(ptr, size) memcheck(irealloc((ptr), (size)))
+#define emalloc(size) memcheck(malloc(size))
+#define erealloc(ptr, size) memcheck(realloc(ptr, size))
#define ecpyalloc(ptr) memcheck(icpyalloc(ptr))
#define ecatalloc(oldp, newp) memcheck(icatalloc((oldp), (newp)))
@@ -402,11 +375,8 @@ char * const ptr;
*/
static void
-eats(name, num, rname, rnum)
-const char * const name;
-const int num;
-const char * const rname;
-const int rnum;
+eats(const char *const name, const int num, const char *const rname,
+ const int rnum)
{
filename = name;
linenum = num;
@@ -415,16 +385,13 @@ const int rnum;
}
static void
-eat(name, num)
-const char * const name;
-const int num;
+eat(const char *const name, const int num)
{
- eats(name, num, (char *) NULL, -1);
+ eats(name, num, NULL, -1);
}
static void
-error(string)
-const char * const string;
+error(const char *const string)
{
/*
** Match the format of "cc" to allow sh users to
@@ -441,15 +408,14 @@ const char * const string;
}
static void
-warning(string)
-const char * const string;
+warning(const char *const string)
{
char * cp;
cp = ecpyalloc(_("warning: "));
cp = ecatalloc(cp, string);
error(cp);
- ifree(cp);
+ free(cp);
--errors;
}
@@ -472,9 +438,7 @@ static const char * leapsec;
static const char * yitcommand;
int
-main(argc, argv)
-int argc;
-char * argv[];
+main(int argc, char **argv)
{
register int i;
register int j;
@@ -498,7 +462,7 @@ char * argv[];
}
for (i = 1; i < argc; ++i)
if (strcmp(argv[i], "--version") == 0) {
- (void) printf("%s\n", elsieid);
+ (void) printf("%s\n", TZVERSION);
exit(EXIT_SUCCESS);
} else if (strcmp(argv[i], "--help") == 0) {
usage(stdout, EXIT_SUCCESS);
@@ -571,8 +535,6 @@ _("%s: More than one -L option specified\n"),
if (yitcommand == NULL)
yitcommand = "yearistype";
- setboundaries();
-
if (optind < argc && leapsec != NULL) {
infile(leapsec);
adjleap();
@@ -615,9 +577,7 @@ _("%s: More than one -L option specified\n"),
}
static void
-dolink(fromfield, tofield)
-const char * const fromfield;
-const char * const tofield;
+dolink(const char *const fromfield, const char *const tofield)
{
register char * fromname;
register char * toname;
@@ -667,7 +627,7 @@ const char * const tofield;
toname);
if (result == 0)
warning(_("hard link failed, symbolic link used"));
- ifree(symlinkcontents);
+ free(symlinkcontents);
}
#endif /* HAVE_SYMLINK */
if (result != 0) {
@@ -679,26 +639,17 @@ warning(_("hard link failed, symbolic link used"));
exit(EXIT_FAILURE);
}
}
- ifree(fromname);
- ifree(toname);
+ free(fromname);
+ free(toname);
}
#define TIME_T_BITS_IN_FILE 64
-static void
-setboundaries(void)
-{
- register int i;
-
- min_time = -1;
- for (i = 0; i < TIME_T_BITS_IN_FILE - 1; ++i)
- min_time *= 2;
- max_time = -(min_time + 1);
-}
+static const zic_t min_time = (zic_t) -1 << (TIME_T_BITS_IN_FILE - 1);
+static const zic_t max_time = -1 - ((zic_t) -1 << (TIME_T_BITS_IN_FILE - 1));
static int
-itsdir(name)
-const char * const name;
+itsdir(const char *const name)
{
register char * myname;
register int accres;
@@ -706,7 +657,7 @@ const char * const name;
myname = ecpyalloc(name);
myname = ecatalloc(myname, "/.");
accres = access(myname, F_OK);
- ifree(myname);
+ free(myname);
return accres == 0;
}
@@ -719,9 +670,7 @@ const char * const name;
*/
static int
-rcomp(cp1, cp2)
-const void * cp1;
-const void * cp2;
+rcomp(const void *cp1, const void *cp2)
{
return strcmp(((const struct rule *) cp1)->r_name,
((const struct rule *) cp2)->r_name);
@@ -736,8 +685,7 @@ associate(void)
register int i, j;
if (nrules != 0) {
- (void) qsort((void *) rules, (size_t) nrules,
- (size_t) sizeof *rules, rcomp);
+ (void) qsort(rules, nrules, sizeof *rules, rcomp);
for (i = 0; i < nrules - 1; ++i) {
if (strcmp(rules[i].r_name,
rules[i + 1].r_name) != 0)
@@ -804,8 +752,7 @@ associate(void)
}
static void
-infile(name)
-const char * name;
+infile(const char *name)
{
register FILE * fp;
register char ** fields;
@@ -829,7 +776,7 @@ const char * name;
wantcont = FALSE;
for (num = 1; ; ++num) {
eat(name, num);
- if (fgets(buf, (int) sizeof buf, fp) != buf)
+ if (fgets(buf, sizeof buf, fp) != buf)
break;
cp = strchr(buf, '\n');
if (cp == NULL) {
@@ -881,7 +828,7 @@ _("%s: panic: Invalid l_value %d\n"),
exit(EXIT_FAILURE);
}
}
- ifree((char *) fields);
+ free(fields);
}
if (ferror(fp)) {
(void) fprintf(stderr, _("%s: Error reading %s\n"),
@@ -908,10 +855,7 @@ _("%s: panic: Invalid l_value %d\n"),
*/
static long
-gethms(string, errstring, signable)
-const char * string;
-const char * const errstring;
-const int signable;
+gethms(const char *string, const char *const errstring, const int signable)
{
long hh;
int mm, ss, sign;
@@ -953,9 +897,7 @@ warning(_("values over 24 hours not handled by pre-2007 versions of zic"));
}
static void
-inrule(fields, nfields)
-register char ** const fields;
-const int nfields;
+inrule(register char **const fields, const int nfields)
{
static struct rule r;
@@ -976,15 +918,12 @@ const int nfields;
r.r_abbrvar = ecpyalloc(fields[RF_ABBRVAR]);
if (max_abbrvar_len < strlen(r.r_abbrvar))
max_abbrvar_len = strlen(r.r_abbrvar);
- rules = (struct rule *) (void *) erealloc((char *) rules,
- (int) ((nrules + 1) * sizeof *rules));
+ rules = erealloc(rules, (nrules + 1) * sizeof *rules);
rules[nrules++] = r;
}
static int
-inzone(fields, nfields)
-register char ** const fields;
-const int nfields;
+inzone(register char **const fields, const int nfields)
{
register int i;
static char * buf;
@@ -994,7 +933,7 @@ const int nfields;
return FALSE;
}
if (strcmp(fields[ZF_NAME], TZDEFAULT) == 0 && lcltime != NULL) {
- buf = erealloc(buf, (int) (132 + strlen(TZDEFAULT)));
+ buf = erealloc(buf, 132 + strlen(TZDEFAULT));
(void) sprintf(buf,
_("\"Zone %s\" line and -l option are mutually exclusive"),
TZDEFAULT);
@@ -1002,7 +941,7 @@ _("\"Zone %s\" line and -l option are mutually exclusive"),
return FALSE;
}
if (strcmp(fields[ZF_NAME], TZDEFRULES) == 0 && psxrules != NULL) {
- buf = erealloc(buf, (int) (132 + strlen(TZDEFRULES)));
+ buf = erealloc(buf, 132 + strlen(TZDEFRULES));
(void) sprintf(buf,
_("\"Zone %s\" line and -p option are mutually exclusive"),
TZDEFRULES);
@@ -1012,9 +951,9 @@ _("\"Zone %s\" line and -p option are mutually exclusive"),
for (i = 0; i < nzones; ++i)
if (zones[i].z_name != NULL &&
strcmp(zones[i].z_name, fields[ZF_NAME]) == 0) {
- buf = erealloc(buf, (int) (132 +
- strlen(fields[ZF_NAME]) +
- strlen(zones[i].z_filename)));
+ buf = erealloc(buf,
+ (132 + strlen(fields[ZF_NAME])
+ + strlen(zones[i].z_filename)));
(void) sprintf(buf,
_("duplicate zone name %s (file \"%s\", line %d)"),
fields[ZF_NAME],
@@ -1027,9 +966,7 @@ _("duplicate zone name %s (file \"%s\", line %d)"),
}
static int
-inzcont(fields, nfields)
-register char ** const fields;
-const int nfields;
+inzcont(register char **const fields, const int nfields)
{
if (nfields < ZONEC_MINFIELDS || nfields > ZONEC_MAXFIELDS) {
error(_("wrong number of fields on Zone continuation line"));
@@ -1039,10 +976,7 @@ const int nfields;
}
static int
-inzsub(fields, nfields, iscont)
-register char ** const fields;
-const int nfields;
-const int iscont;
+inzsub(register char **const fields, const int nfields, const int iscont)
{
register char * cp;
static struct zone z;
@@ -1109,8 +1043,7 @@ const int iscont;
return FALSE;
}
}
- zones = (struct zone *) (void *) erealloc((char *) zones,
- (int) ((nzones + 1) * sizeof *zones));
+ zones = erealloc(zones, (nzones + 1) * sizeof *zones);
zones[nzones++] = z;
/*
** If there was an UNTIL field on this line,
@@ -1120,9 +1053,7 @@ const int iscont;
}
static void
-inleap(fields, nfields)
-register char ** const fields;
-const int nfields;
+inleap(register char ** const fields, const int nfields)
{
register const char * cp;
register const struct lookup * lp;
@@ -1224,9 +1155,7 @@ const int nfields;
}
static void
-inlink(fields, nfields)
-register char ** const fields;
-const int nfields;
+inlink(register char **const fields, const int nfields)
{
struct link l;
@@ -1246,20 +1175,18 @@ const int nfields;
l.l_linenum = linenum;
l.l_from = ecpyalloc(fields[LF_FROM]);
l.l_to = ecpyalloc(fields[LF_TO]);
- links = (struct link *) (void *) erealloc((char *) links,
- (int) ((nlinks + 1) * sizeof *links));
+ links = erealloc(links, (nlinks + 1) * sizeof *links);
links[nlinks++] = l;
}
static void
-rulesub(rp, loyearp, hiyearp, typep, monthp, dayp, timep)
-register struct rule * const rp;
-const char * const loyearp;
-const char * const hiyearp;
-const char * const typep;
-const char * const monthp;
-const char * const dayp;
-const char * const timep;
+rulesub(register struct rule *const rp,
+ const char *const loyearp,
+ const char *const hiyearp,
+ const char *const typep,
+ const char *const monthp,
+ const char *const dayp,
+ const char *const timep)
{
register const struct lookup * lp;
register const char * cp;
@@ -1297,7 +1224,7 @@ const char * const timep;
}
}
rp->r_tod = gethms(dp, _("invalid time of day"), FALSE);
- ifree(dp);
+ free(dp);
/*
** Year work.
*/
@@ -1381,12 +1308,12 @@ const char * const timep;
*ep++ = 0;
if (*ep++ != '=') {
error(_("invalid day of month"));
- ifree(dp);
+ free(dp);
return;
}
if ((lp = byword(dp, wday_names)) == NULL) {
error(_("invalid weekday name"));
- ifree(dp);
+ free(dp);
return;
}
rp->r_wday = lp->l_value;
@@ -1395,63 +1322,55 @@ const char * const timep;
rp->r_dayofmonth <= 0 ||
(rp->r_dayofmonth > len_months[1][rp->r_month])) {
error(_("invalid day of month"));
- ifree(dp);
+ free(dp);
return;
}
}
- ifree(dp);
+ free(dp);
}
static void
-convert(val, buf)
-const long val;
-char * const buf;
+convert(const long val, char *const buf)
{
register int i;
register int shift;
+ unsigned char *const b = (unsigned char *) buf;
for (i = 0, shift = 24; i < 4; ++i, shift -= 8)
- buf[i] = val >> shift;
+ b[i] = val >> shift;
}
static void
-convert64(val, buf)
-const zic_t val;
-char * const buf;
+convert64(const zic_t val, char *const buf)
{
register int i;
register int shift;
+ unsigned char *const b = (unsigned char *) buf;
for (i = 0, shift = 56; i < 8; ++i, shift -= 8)
- buf[i] = val >> shift;
+ b[i] = val >> shift;
}
static void
-puttzcode(val, fp)
-const long val;
-FILE * const fp;
+puttzcode(const long val, FILE *const fp)
{
char buf[4];
convert(val, buf);
- (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp);
+ (void) fwrite(buf, sizeof buf, 1, fp);
}
static void
-puttzcode64(val, fp)
-const zic_t val;
-FILE * const fp;
+puttzcode64(const zic_t val, FILE *const fp)
{
char buf[8];
convert64(val, buf);
- (void) fwrite((void *) buf, (size_t) sizeof buf, (size_t) 1, fp);
+ (void) fwrite(buf, sizeof buf, 1, fp);
}
static int
-atcomp(avp, bvp)
-const void * avp;
-const void * bvp;
+atcomp(const void *avp, const void *bvp)
{
const zic_t a = ((const struct attype *) avp)->at;
const zic_t b = ((const struct attype *) bvp)->at;
@@ -1460,16 +1379,13 @@ const void * bvp;
}
static int
-is32(x)
-const zic_t x;
+is32(const zic_t x)
{
return INT32_MIN <= x && x <= INT32_MAX;
}
static void
-writezone(name, string)
-const char * const name;
-const char * const string;
+writezone(const char *const name, const char *const string)
{
register FILE * fp;
register int i, j;
@@ -1486,8 +1402,7 @@ const char * const string;
** Sort.
*/
if (timecnt > 1)
- (void) qsort((void *) attypes, (size_t) timecnt,
- (size_t) sizeof *attypes, atcomp);
+ (void) qsort(attypes, timecnt, sizeof *attypes, atcomp);
/*
** Optimize.
*/
@@ -1555,7 +1470,7 @@ const char * const string;
++leapi32;
}
fullname = erealloc(fullname,
- (int) (strlen(directory) + 1 + strlen(name) + 1));
+ strlen(directory) + 1 + strlen(name) + 1);
(void) sprintf(fullname, "%s/%s", directory, name);
/*
** Remove old file, if any, to snap links.
@@ -1692,8 +1607,7 @@ const char * const string;
}
indmap[abbrinds[i]] = j;
}
-#define DO(field) (void) fwrite((void *) tzh.field, \
- (size_t) sizeof tzh.field, (size_t) 1, fp)
+#define DO(field) ((void) fwrite(tzh.field, sizeof tzh.field, 1, fp))
tzh = tzh0;
(void) strncpy(tzh.tzh_magic, TZ_MAGIC, sizeof tzh.tzh_magic);
tzh.tzh_version[0] = ZIC_VERSION;
@@ -1721,10 +1635,7 @@ const char * const string;
unsigned char uc;
uc = typemap[types[i]];
- (void) fwrite((void *) &uc,
- (size_t) sizeof uc,
- (size_t) 1,
- fp);
+ (void) fwrite(&uc, sizeof uc, 1, fp);
}
for (i = 0; i < typecnt; ++i)
if (writetype[i]) {
@@ -1733,9 +1644,8 @@ const char * const string;
(void) putc((unsigned char) indmap[abbrinds[i]], fp);
}
if (thischarcnt != 0)
- (void) fwrite((void *) thischars,
- (size_t) sizeof thischars[0],
- (size_t) thischarcnt, fp);
+ (void) fwrite(thischars, sizeof thischars[0],
+ thischarcnt, fp);
for (i = thisleapi; i < thisleaplim; ++i) {
register zic_t todo;
@@ -1757,7 +1667,7 @@ const char * const string;
todo = tadd(trans[i], -gmtoffs[j]);
} else todo = trans[i];
if (pass == 1)
- puttzcode((long) todo, fp);
+ puttzcode(todo, fp);
else puttzcode64(todo, fp);
puttzcode(corr[i], fp);
}
@@ -1777,12 +1687,8 @@ const char * const string;
}
static void
-doabbr(abbr, format, letters, isdst, doquotes)
-char * const abbr;
-const char * const format;
-const char * const letters;
-const int isdst;
-const int doquotes;
+doabbr(char *const abbr, const char *const format, const char *const letters,
+ const int isdst, const int doquotes)
{
register char * cp;
register char * slashp;
@@ -1797,8 +1703,7 @@ const int doquotes;
(void) strcpy(abbr, slashp + 1);
} else {
if (slashp > format)
- (void) strncpy(abbr, format,
- (unsigned) (slashp - format));
+ (void) strncpy(abbr, format, slashp - format);
abbr[slashp - format] = '\0';
}
if (!doquotes)
@@ -1818,8 +1723,7 @@ const int doquotes;
}
static void
-updateminmax(x)
-const int x;
+updateminmax(const int x)
{
if (min_year > x)
min_year = x;
@@ -1828,9 +1732,7 @@ const int x;
}
static int
-stringoffset(result, offset)
-char * result;
-long offset;
+stringoffset(char *result, long offset)
{
register int hours;
register int minutes;
@@ -1860,11 +1762,8 @@ long offset;
}
static int
-stringrule(result, rp, dstoff, gmtoff)
-char * result;
-const struct rule * const rp;
-const long dstoff;
-const long gmtoff;
+stringrule(char *result, const struct rule *const rp, const long dstoff,
+ const long gmtoff)
{
register long tod;
@@ -1915,10 +1814,7 @@ const long gmtoff;
}
static void
-stringzone(result, zpfirst, zonecount)
-char * result;
-const struct zone * const zpfirst;
-const int zonecount;
+stringzone(char *result, const struct zone *const zpfirst, const int zonecount)
{
register const struct zone * zp;
register struct rule * rp;
@@ -1998,9 +1894,7 @@ const int zonecount;
}
static void
-outzone(zpfirst, zonecount)
-const struct zone * const zpfirst;
-const int zonecount;
+outzone(const struct zone * const zpfirst, const int zonecount)
{
register const struct zone * zp;
register struct rule * rp;
@@ -2071,7 +1965,7 @@ wp = ecpyalloc(_("no POSIX environment variable for zone"));
wp = ecatalloc(wp, " ");
wp = ecatalloc(wp, zpfirst->z_name);
warning(wp);
- ifree(wp);
+ free(wp);
}
if (envvar[0] == '\0') {
if (min_year >= INT_MIN + YEARSPERREPEAT)
@@ -2116,7 +2010,7 @@ wp = ecpyalloc(_("no POSIX environment variable for zone"));
if (zp->z_nrules == 0) {
stdoff = zp->z_stdoff;
doabbr(startbuf, zp->z_format,
- (char *) NULL, stdoff != 0, FALSE);
+ NULL, stdoff != 0, FALSE);
type = addtype(oadd(zp->z_gmtoff, stdoff),
startbuf, stdoff != 0, startttisstd,
startttisgmt);
@@ -2255,15 +2149,13 @@ error(_("can't determine time zone abbreviation to use just after until time"));
}
}
writezone(zpfirst->z_name, envvar);
- ifree(startbuf);
- ifree(ab);
- ifree(envvar);
+ free(startbuf);
+ free(ab);
+ free(envvar);
}
static void
-addtt(starttime, type)
-const zic_t starttime;
-int type;
+addtt(const zic_t starttime, int type)
{
if (starttime <= min_time ||
(timecnt == 1 && attypes[0].at < min_time)) {
@@ -2289,12 +2181,8 @@ int type;
}
static int
-addtype(gmtoff, abbr, isdst, ttisstd, ttisgmt)
-const long gmtoff;
-const char * const abbr;
-const int isdst;
-const int ttisstd;
-const int ttisgmt;
+addtype(const long gmtoff, const char *const abbr, const int isdst,
+ const int ttisstd, const int ttisgmt)
{
register int i, j;
@@ -2349,11 +2237,7 @@ const int ttisgmt;
}
static void
-leapadd(t, positive, rolling, count)
-const zic_t t;
-const int positive;
-const int rolling;
-int count;
+leapadd(const zic_t t, const int positive, const int rolling, int count)
{
register int i, j;
@@ -2398,16 +2282,14 @@ adjleap(void)
}
static int
-yearistype(year, type)
-const int year;
-const char * const type;
+yearistype(const int year, const char *const type)
{
static char * buf;
int result;
if (type == NULL || *type == '\0')
return TRUE;
- buf = erealloc(buf, (int) (132 + strlen(yitcommand) + strlen(type)));
+ buf = erealloc(buf, 132 + strlen(yitcommand) + strlen(type));
(void) sprintf(buf, "%s %d %s", yitcommand, year, type);
result = system(buf);
if (WIFEXITED(result)) switch (WEXITSTATUS(result)) {
@@ -2424,17 +2306,15 @@ const char * const type;
}
static int
-lowerit(a)
-int a;
+lowerit(int a)
{
a = (unsigned char) a;
return (isascii(a) && isupper(a)) ? tolower(a) : a;
}
-static int
-ciequal(ap, bp) /* case-insensitive equality */
-register const char * ap;
-register const char * bp;
+/* case-insensitive equality */
+static ATTRIBUTE_PURE int
+ciequal(register const char *ap, register const char *bp)
{
while (lowerit(*ap) == lowerit(*bp++))
if (*ap++ == '\0')
@@ -2442,10 +2322,8 @@ register const char * bp;
return FALSE;
}
-static int
-itsabbr(abbr, word)
-register const char * abbr;
-register const char * word;
+static ATTRIBUTE_PURE int
+itsabbr(register const char *abbr, register const char *word)
{
if (lowerit(*abbr) != lowerit(*word))
return FALSE;
@@ -2458,10 +2336,9 @@ register const char * word;
return TRUE;
}
-static const struct lookup *
-byword(word, table)
-register const char * const word;
-register const struct lookup * const table;
+static ATTRIBUTE_PURE const struct lookup *
+byword(register const char *const word,
+ register const struct lookup *const table)
{
register const struct lookup * foundlp;
register const struct lookup * lp;
@@ -2488,8 +2365,7 @@ register const struct lookup * const table;
}
static char **
-getfields(cp)
-register char * cp;
+getfields(register char *cp)
{
register char * dp;
register char ** array;
@@ -2497,8 +2373,7 @@ register char * cp;
if (cp == NULL)
return NULL;
- array = (char **) (void *)
- emalloc((int) ((strlen(cp) + 1) * sizeof *array));
+ array = emalloc((strlen(cp) + 1) * sizeof *array);
nsubs = 0;
for ( ; ; ) {
while (isascii((unsigned char) *cp) &&
@@ -2529,38 +2404,28 @@ register char * cp;
return array;
}
-static long
-oadd(t1, t2)
-const long t1;
-const long t2;
+static ATTRIBUTE_PURE long
+oadd(const long t1, const long t2)
{
- register long t;
-
- t = t1 + t2;
- if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
+ if (t1 < 0 ? t2 < LONG_MIN - t1 : LONG_MAX - t1 < t2) {
error(_("time overflow"));
exit(EXIT_FAILURE);
}
- return t;
+ return t1 + t2;
}
-static zic_t
-tadd(t1, t2)
-const zic_t t1;
-const long t2;
+static ATTRIBUTE_PURE zic_t
+tadd(const zic_t t1, const long t2)
{
- register zic_t t;
-
if (t1 == max_time && t2 > 0)
return max_time;
if (t1 == min_time && t2 < 0)
return min_time;
- t = t1 + t2;
- if ((t2 > 0 && t <= t1) || (t2 < 0 && t >= t1)) {
+ if (t1 < 0 ? t2 < min_time - t1 : max_time - t1 < t2) {
error(_("time overflow"));
exit(EXIT_FAILURE);
}
- return t;
+ return t1 + t2;
}
/*
@@ -2569,9 +2434,7 @@ const long t2;
*/
static zic_t
-rpytime(rp, wantedy)
-register const struct rule * const rp;
-register const int wantedy;
+rpytime(register const struct rule *const rp, register const int wantedy)
{
register int y, m, i;
register long dayoff; /* with a nod to Margaret O. */
@@ -2627,12 +2490,12 @@ register const int wantedy;
}
while (wday != eitol(rp->r_wday))
if (rp->r_dycode == DC_DOWGEQ) {
- dayoff = oadd(dayoff, (long) 1);
+ dayoff = oadd(dayoff, 1);
if (++wday >= LDAYSPERWEEK)
wday = 0;
++i;
} else {
- dayoff = oadd(dayoff, (long) -1);
+ dayoff = oadd(dayoff, -1);
if (--wday < 0)
wday = LDAYSPERWEEK - 1;
--i;
@@ -2652,31 +2515,30 @@ will not work with pre-2004 versions of zic"));
}
static void
-newabbr(string)
-const char * const string;
+newabbr(const char *const string)
{
register int i;
if (strcmp(string, GRANDPARENTED) != 0) {
register const char * cp;
- register char * wp;
+ const char * mp;
/*
** Want one to ZIC_MAX_ABBR_LEN_WO_WARN alphabetics
** optionally followed by a + or - and a number from 1 to 14.
*/
cp = string;
- wp = NULL;
+ mp = NULL;
while (isascii((unsigned char) *cp) &&
isalpha((unsigned char) *cp))
++cp;
if (cp - string == 0)
-wp = _("time zone abbreviation lacks alphabetic at start");
+mp = _("time zone abbreviation lacks alphabetic at start");
if (noise && cp - string > 3)
-wp = _("time zone abbreviation has more than 3 alphabetics");
+mp = _("time zone abbreviation has more than 3 alphabetics");
if (cp - string > ZIC_MAX_ABBR_LEN_WO_WARN)
-wp = _("time zone abbreviation has too many alphabetics");
- if (wp == NULL && (*cp == '+' || *cp == '-')) {
+mp = _("time zone abbreviation has too many alphabetics");
+ if (mp == NULL && (*cp == '+' || *cp == '-')) {
++cp;
if (isascii((unsigned char) *cp) &&
isdigit((unsigned char) *cp))
@@ -2685,14 +2547,14 @@ wp = _("time zone abbreviation has too many alphabetics");
++cp;
}
if (*cp != '\0')
-wp = _("time zone abbreviation differs from POSIX standard");
- if (wp != NULL) {
- wp = ecpyalloc(wp);
+mp = _("time zone abbreviation differs from POSIX standard");
+ if (mp != NULL) {
+ char *wp = ecpyalloc(mp);
wp = ecatalloc(wp, " (");
wp = ecatalloc(wp, string);
wp = ecatalloc(wp, ")");
warning(wp);
- ifree(wp);
+ free(wp);
}
}
i = strlen(string) + 1;
@@ -2705,8 +2567,7 @@ wp = _("time zone abbreviation differs from POSIX standard");
}
static int
-mkdirs(argname)
-char * argname;
+mkdirs(char *argname)
{
register char * name;
register char * cp;
@@ -2740,20 +2601,19 @@ char * argname;
(void) fprintf(stderr,
_("%s: Can't create directory %s: %s\n"),
progname, name, e);
- ifree(name);
+ free(name);
return -1;
}
}
}
*cp = '/';
}
- ifree(name);
+ free(name);
return 0;
}
-static long
-eitol(i)
-const int i;
+static ATTRIBUTE_PURE long
+eitol(const int i)
{
long l;
generated by cgit v1.1 at 2024-12-12 05:14:55 +0000