Adding upstream version 0.5.1upstream/0.5.1

1 files changed, 1989 insertions, 0 deletions

diff --git a/etc.c b/etc.c
new file mode 100644
index 0000000..bed8292
--- /dev/null
+++ b/etc.c
@@ -0,0 +1,1989 @@
+/* $Id: etc.c,v 1.78 2004/04/16 18:47:19 ukai Exp $ */
+#include "fm.h"
+#include <pwd.h>
+#include "myctype.h"
+#include "html.h"
+#include "local.h"
+#include "hash.h"
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <time.h>
+#if defined(HAVE_WAITPID) || defined(HAVE_WAIT3)
+#include <sys/wait.h>
+#endif
+#include <signal.h>
+
+#ifdef	__WATT32__
+#define	read(a,b,c)	read_s(a,b,c)
+#define	close(x)	close_s(x)
+#endif				/* __WATT32__ */
+
+struct auth_pass {
+    int bad;
+    int is_proxy;
+    Str host;
+    int port;
+/*    Str file; */
+    Str realm;
+    Str uname;
+    Str pwd;
+    struct auth_pass *next;
+};
+
+struct auth_pass *passwords = NULL;
+
+int
+columnSkip(Buffer *buf, int offset)
+{
+    int i, maxColumn;
+    int column = buf->currentColumn + offset;
+    int nlines = buf->LINES + 1;
+    Line *l;
+
+    maxColumn = 0;
+    for (i = 0, l = buf->topLine; i < nlines && l != NULL; i++, l = l->next) {
+	if (l->width < 0)
+	    l->width = COLPOS(l, l->len);
+	if (l->width - 1 > maxColumn)
+	    maxColumn = l->width - 1;
+    }
+    maxColumn -= buf->COLS - 1;
+    if (column < maxColumn)
+	maxColumn = column;
+    if (maxColumn < 0)
+	maxColumn = 0;
+
+    if (buf->currentColumn == maxColumn)
+	return 0;
+    buf->currentColumn = maxColumn;
+    return 1;
+}
+
+int
+columnPos(Line *line, int column)
+{
+    int i;
+
+    for (i = 1; i < line->len; i++) {
+	if (COLPOS(line, i) > column)
+	    break;
+    }
+#ifdef USE_M17N
+    for (i--; i > 0 && line->propBuf[i] & PC_WCHAR2; i--) ;
+    return i;
+#else
+    return i - 1;
+#endif
+}
+
+Line *
+lineSkip(Buffer *buf, Line *line, int offset, int last)
+{
+    int i;
+    Line *l;
+
+    l = currentLineSkip(buf, line, offset, last);
+    if (!nextpage_topline)
+	for (i = buf->LINES - 1 - (buf->lastLine->linenumber - l->linenumber);
+	     i > 0 && l->prev != NULL; i--, l = l->prev) ;
+    return l;
+}
+
+Line *
+currentLineSkip(Buffer *buf, Line *line, int offset, int last)
+{
+    int i, n;
+    Line *l = line;
+
+    if (buf->pagerSource && !(buf->bufferprop & BP_CLOSE)) {
+	n = line->linenumber + offset + buf->LINES;
+	if (buf->lastLine->linenumber < n)
+	    getNextPage(buf, n - buf->lastLine->linenumber);
+	while ((last || (buf->lastLine->linenumber < n)) &&
+	       (getNextPage(buf, 1) != NULL)) ;
+	if (last)
+	    l = buf->lastLine;
+    }
+
+    if (offset == 0)
+	return l;
+    if (offset > 0)
+	for (i = 0; i < offset && l->next != NULL; i++, l = l->next) ;
+    else
+	for (i = 0; i < -offset && l->prev != NULL; i++, l = l->prev) ;
+    return l;
+}
+
+#define MAX_CMD_LEN 128
+
+int
+gethtmlcmd(char **s)
+{
+    extern Hash_si tagtable;
+    char cmdstr[MAX_CMD_LEN];
+    char *p = cmdstr;
+    char *save = *s;
+    int cmd;
+
+    (*s)++;
+    /* first character */
+    if (IS_ALNUM(**s) || **s == '_' || **s == '/') {
+	*(p++) = TOLOWER(**s);
+	(*s)++;
+    }
+    else
+	return HTML_UNKNOWN;
+    if (p[-1] == '/')
+	SKIP_BLANKS(*s);
+    while ((IS_ALNUM(**s) || **s == '_') && p - cmdstr < MAX_CMD_LEN) {
+	*(p++) = TOLOWER(**s);
+	(*s)++;
+    }
+    if (p - cmdstr == MAX_CMD_LEN) {
+	/* buffer overflow: perhaps caused by bad HTML source */
+	*s = save + 1;
+	return HTML_UNKNOWN;
+    }
+    *p = '\0';
+
+    /* hash search */
+    cmd = getHash_si(&tagtable, cmdstr, HTML_UNKNOWN);
+    while (**s && **s != '>')
+	(*s)++;
+    if (**s == '>')
+	(*s)++;
+    return cmd;
+}
+
+#ifdef USE_ANSI_COLOR
+static int
+parse_ansi_color(char **str, Lineprop *effect, Linecolor *color)
+{
+    char *p = *str, *q;
+    Lineprop e = *effect;
+    Linecolor c = *color;
+    int i;
+
+    if (*p != ESC_CODE || *(p + 1) != '[')
+	return 0;
+    p += 2;
+    for (q = p; IS_DIGIT(*q) || *q == ';'; q++) ;
+    if (*q != 'm')
+	return 0;
+    *str = q + 1;
+    while (1) {
+	if (*p == 'm') {
+	    e = PE_NORMAL;
+	    c = 0;
+	    break;
+	}
+	if (IS_DIGIT(*p)) {
+	    q = p;
+	    for (p++; IS_DIGIT(*p); p++) ;
+	    i = atoi(allocStr(q, p - q));
+	    switch (i) {
+	    case 0:
+		e = PE_NORMAL;
+		c = 0;
+		break;
+	    case 1:
+	    case 5:
+		e = PE_BOLD;
+		break;
+	    case 4:
+		e = PE_UNDER;
+		break;
+	    case 7:
+		e = PE_STAND;
+		break;
+	    case 100:		/* for EWS4800 kterm */
+		c = 0;
+		break;
+	    case 39:
+		c &= 0xf0;
+		break;
+	    case 49:
+		c &= 0x0f;
+		break;
+	    default:
+		if (i >= 30 && i <= 37)
+		    c = (c & 0xf0) | (i - 30) | 0x08;
+		else if (i >= 40 && i <= 47)
+		    c = (c & 0x0f) | ((i - 40) << 4) | 0x80;
+		break;
+	    }
+	    if (*p == 'm')
+		break;
+	}
+	else {
+	    e = PE_NORMAL;
+	    c = 0;
+	    break;
+	}
+	p++;			/* *p == ';' */
+    }
+    *effect = e;
+    *color = c;
+    return 1;
+}
+#endif
+/* 
+ * Check character type
+ */
+
+Str
+checkType(Str s, Lineprop **oprop, Linecolor **ocolor)
+{
+    Lineprop mode;
+    Lineprop effect = PE_NORMAL;
+    Lineprop *prop;
+    static Lineprop *prop_buffer = NULL;
+    static int prop_size = 0;
+    char *str = s->ptr, *endp = &s->ptr[s->length], *bs = NULL;
+#ifdef USE_ANSI_COLOR
+    Lineprop ceffect = PE_NORMAL;
+    Linecolor cmode = 0;
+    int check_color = FALSE;
+    Linecolor *color = NULL;
+    static Linecolor *color_buffer = NULL;
+    static int color_size = 0;
+    char *es = NULL;
+#endif
+    int do_copy = FALSE;
+    int i;
+    int plen = 0, clen;
+
+    if (prop_size < s->length) {
+	prop_size = (s->length > LINELEN) ? s->length : LINELEN;
+	prop_buffer = New_Reuse(Lineprop, prop_buffer, prop_size);
+    }
+    prop = prop_buffer;
+
+    if (ShowEffect) {
+	bs = memchr(str, '\b', s->length);
+#ifdef USE_ANSI_COLOR
+	if (ocolor) {
+	    es = memchr(str, ESC_CODE, s->length);
+	    if (es) {
+		if (color_size < s->length) {
+		    color_size = (s->length > LINELEN) ? s->length : LINELEN;
+		    color_buffer = New_Reuse(Linecolor, color_buffer,
+					     color_size);
+		}
+		color = color_buffer;
+	    }
+	}
+#endif
+	if ((bs != NULL)
+#ifdef USE_ANSI_COLOR
+	    || (es != NULL)
+#endif
+	    ) {
+	    char *sp = str, *ep;
+	    s = Strnew_size(s->length);
+	    do_copy = TRUE;
+	    ep = bs ? (bs - 2) : endp;
+#ifdef USE_ANSI_COLOR
+	    if (es && ep > es - 2)
+		ep = es - 2;
+#endif
+	    for (; str < ep && IS_ASCII(*str); str++) {
+		*(prop++) = PE_NORMAL | (IS_CNTRL(*str) ? PC_CTRL : PC_ASCII);
+#ifdef USE_ANSI_COLOR
+		if (color)
+		    *(color++) = 0;
+#endif
+	    }
+	    Strcat_charp_n(s, sp, (int)(str - sp));
+	}
+    }
+    if (!do_copy) {
+	for (; str < endp && IS_ASCII(*str); str++)
+	    *(prop++) = PE_NORMAL | (IS_CNTRL(*str) ? PC_CTRL : PC_ASCII);
+    }
+
+    while (str < endp) {
+	if (prop - prop_buffer >= prop_size)
+	    break;
+	if (bs != NULL) {
+#ifdef USE_M17N
+	    if (str == bs - 2 && !strncmp(str, "__\b\b", 4)) {
+		str += 4;
+		effect = PE_UNDER;
+		if (str < endp)
+		    bs = memchr(str, '\b', endp - str);
+		continue;
+	    }
+	    else
+#endif
+	    if (str == bs - 1 && *str == '_') {
+		str += 2;
+		effect = PE_UNDER;
+		if (str < endp)
+		    bs = memchr(str, '\b', endp - str);
+		continue;
+	    }
+	    else if (str == bs) {
+		if (*(str + 1) == '_') {
+		    if (s->length) {
+			str += 2;
+#ifdef USE_M17N
+			for (i = 1; i <= plen; i++)
+			    *(prop - i) |= PE_UNDER;
+#else
+			*(prop - 1) |= PE_UNDER;
+#endif
+		    }
+		    else {
+			str++;
+		    }
+		}
+#ifdef USE_M17N
+		else if (!strncmp(str + 1, "\b__", 3)) {
+		    if (s->length) {
+			str += (plen == 1) ? 3 : 4;
+			for (i = 1; i <= plen; i++)
+			    *(prop - i) |= PE_UNDER;
+		    }
+		    else {
+			str += 2;
+		    }
+		}
+		else if (*(str + 1) == '\b') {
+		    if (s->length) {
+			clen = get_mclen(str + 2);
+			if (plen == clen &&
+			    !strncmp(str - plen, str + 2, plen)) {
+			    for (i = 1; i <= plen; i++)
+				*(prop - i) |= PE_BOLD;
+			    str += 2 + clen;
+			}
+			else {
+			    Strshrink(s, plen);
+			    prop -= plen;
+			    str += 2;
+			}
+		    }
+		    else {
+			str += 2;
+		    }
+		}
+#endif
+		else {
+		    if (s->length) {
+#ifdef USE_M17N
+			clen = get_mclen(str + 1);
+			if (plen == clen &&
+			    !strncmp(str - plen, str + 1, plen)) {
+			    for (i = 1; i <= plen; i++)
+				*(prop - i) |= PE_BOLD;
+			    str += 1 + clen;
+			}
+			else {
+			    Strshrink(s, plen);
+			    prop -= plen;
+			    str++;
+			}
+#else
+			if (*(str - 1) == *(str + 1)) {
+			    *(prop - 1) |= PE_BOLD;
+			    str += 2;
+			}
+			else {
+			    Strshrink(s, 1);
+			    prop--;
+			    str++;
+			}
+#endif
+		    }
+		    else {
+			str++;
+		    }
+		}
+		if (str < endp)
+		    bs = memchr(str, '\b', endp - str);
+		continue;
+	    }
+#ifdef USE_ANSI_COLOR
+	    else if (str > bs)
+		bs = memchr(str, '\b', endp - str);
+#endif
+	}
+#ifdef USE_ANSI_COLOR
+	if (es != NULL) {
+	    if (str == es) {
+		int ok = parse_ansi_color(&str, &ceffect, &cmode);
+		if (str < endp)
+		    es = memchr(str, ESC_CODE, endp - str);
+		if (ok) {
+		    if (cmode)
+			check_color = TRUE;
+		    continue;
+		}
+	    }
+	    else if (str > es)
+		es = memchr(str, ESC_CODE, endp - str);
+	}
+#endif
+
+	plen = get_mclen(str);
+	mode = get_mctype(str) | effect;
+#ifdef USE_ANSI_COLOR
+	if (color) {
+	    *(color++) = cmode;
+	    mode |= ceffect;
+	}
+#endif
+	*(prop++) = mode;
+#ifdef USE_M17N
+	if (plen > 1) {
+	    mode = (mode & ~PC_WCHAR1) | PC_WCHAR2;
+	    for (i = 1; i < plen; i++) {
+		*(prop++) = mode;
+#ifdef USE_ANSI_COLOR
+		if (color)
+		    *(color++) = cmode;
+#endif
+	    }
+	    if (do_copy)
+		Strcat_charp_n(s, (char *)str, plen);
+	    str += plen;
+	}
+	else
+#endif
+	{
+	    if (do_copy)
+		Strcat_char(s, (char)*str);
+	    str++;
+	}
+	effect = PE_NORMAL;
+    }
+    *oprop = prop_buffer;
+#ifdef USE_ANSI_COLOR
+    if (ocolor)
+	*ocolor = check_color ? color_buffer : NULL;
+#endif
+    return s;
+}
+
+static int
+nextColumn(int n, char *p, Lineprop *pr)
+{
+    if (*pr & PC_CTRL) {
+	if (*p == '\t')
+	    return (n + Tabstop) / Tabstop * Tabstop;
+	else if (*p == '\n')
+	    return n + 1;
+	else if (*p != '\r')
+	    return n + 2;
+	return n;
+    }
+#ifdef USE_M17N
+    if (*pr & PC_UNKNOWN)
+	return n + 4;
+    return n + wtf_width((wc_uchar *) p);
+#else
+    return n + 1;
+#endif
+}
+
+int
+calcPosition(char *l, Lineprop *pr, int len, int pos, int bpos, int mode)
+{
+    static int *realColumn = NULL;
+    static int size = 0;
+    static char *prevl = NULL;
+    int i, j;
+
+    if (l == NULL || len == 0)
+	return bpos;
+    if (l == prevl && mode == CP_AUTO) {
+	if (pos <= len)
+	    return realColumn[pos];
+    }
+    if (size < len + 1) {
+	size = (len + 1 > LINELEN) ? (len + 1) : LINELEN;
+	realColumn = New_N(int, size);
+    }
+    prevl = l;
+    i = 0;
+    j = bpos;
+#ifdef USE_M17N
+    if (pr[i] & PC_WCHAR2) {
+	for (; i < len && pr[i] & PC_WCHAR2; i++)
+	    realColumn[i] = j;
+	if (i > 0 && pr[i - 1] & PC_KANJI && WcOption.use_wide)
+	    j++;
+    }
+#endif
+    while (1) {
+	realColumn[i] = j;
+	if (i == len)
+	    break;
+	j = nextColumn(j, &l[i], &pr[i]);
+	i++;
+#ifdef USE_M17N
+	for (; i < len && pr[i] & PC_WCHAR2; i++)
+	    realColumn[i] = realColumn[i - 1];
+#endif
+    }
+    if (pos >= i)
+	return j;
+    return realColumn[pos];
+}
+
+int
+columnLen(Line *line, int column)
+{
+    int i, j;
+
+    for (i = 0, j = 0; i < line->len;) {
+	j = nextColumn(j, &line->lineBuf[i], &line->propBuf[i]);
+	if (j > column)
+	    return i;
+	i++;
+#ifdef USE_M17N
+	while (i < line->len && line->propBuf[i] & PC_WCHAR2)
+	    i++;
+#endif
+    }
+    return line->len;
+}
+
+char *
+lastFileName(char *path)
+{
+    char *p, *q;
+
+    p = q = path;
+    while (*p != '\0') {
+	if (*p == '/')
+	    q = p + 1;
+	p++;
+    }
+
+    return allocStr(q, -1);
+}
+
+#ifdef USE_INCLUDED_SRAND48
+static unsigned long R1 = 0x1234abcd;
+static unsigned long R2 = 0x330e;
+#define A1 0x5deec
+#define A2 0xe66d
+#define C 0xb
+
+void
+srand48(long seed)
+{
+    R1 = (unsigned long)seed;
+    R2 = 0x330e;
+}
+
+long
+lrand48(void)
+{
+    R1 = (A1 * R1 << 16) + A1 * R2 + A2 * R1 + ((A2 * R2 + C) >> 16);
+    R2 = (A2 * R2 + C) & 0xffff;
+    return (long)(R1 >> 1);
+}
+#endif
+
+char *
+mybasename(char *s)
+{
+    char *p = s;
+    while (*p)
+	p++;
+    while (s <= p && *p != '/')
+	p--;
+    if (*p == '/')
+	p++;
+    else
+	p = s;
+    return allocStr(p, -1);
+}
+
+char *
+mydirname(char *s)
+{
+    char *p = s;
+    while (*p)
+	p++;
+    if (s != p)
+	p--;
+    while (s != p && *p == '/')
+	p--;
+    while (s != p && *p != '/')
+	p--;
+    if (*p != '/')
+	return ".";
+    while (s != p && *p == '/')
+	p--;
+    return allocStr(s, strlen(s) - strlen(p) + 1);
+}
+
+#ifndef HAVE_STRERROR
+char *
+strerror(int errno)
+{
+    extern char *sys_errlist[];
+    return sys_errlist[errno];
+}
+#endif				/* not HAVE_STRERROR */
+
+#ifndef HAVE_SYS_ERRLIST
+char **sys_errlist;
+
+prepare_sys_errlist()
+{
+    int i, n;
+
+    i = 1;
+    while (strerror(i) != NULL)
+	i++;
+    n = i;
+    sys_errlist = New_N(char *, n);
+    sys_errlist[0] = "";
+    for (i = 1; i < n; i++)
+	sys_errlist[i] = strerror(i);
+}
+#endif				/* not HAVE_SYS_ERRLIST */
+
+int
+next_status(char c, int *status)
+{
+    switch (*status) {
+    case R_ST_NORMAL:
+	if (c == '<') {
+	    *status = R_ST_TAG0;
+	    return 0;
+	}
+	else if (c == '&') {
+	    *status = R_ST_AMP;
+	    return 1;
+	}
+	else
+	    return 1;
+	break;
+    case R_ST_TAG0:
+	if (c == '!') {
+	    *status = R_ST_CMNT1;
+	    return 0;
+	}
+	*status = R_ST_TAG;
+	/* continues to next case */
+    case R_ST_TAG:
+	if (c == '>')
+	    *status = R_ST_NORMAL;
+	else if (c == '=')
+	    *status = R_ST_EQL;
+	return 0;
+    case R_ST_EQL:
+	if (c == '"')
+	    *status = R_ST_DQUOTE;
+	else if (c == '\'')
+	    *status = R_ST_QUOTE;
+	else if (IS_SPACE(c))
+	    *status = R_ST_EQL;
+	else if (c == '>')
+	    *status = R_ST_NORMAL;
+	else
+	    *status = R_ST_VALUE;
+	return 0;
+    case R_ST_QUOTE:
+	if (c == '\'')
+	    *status = R_ST_TAG;
+	return 0;
+    case R_ST_DQUOTE:
+	if (c == '"')
+	    *status = R_ST_TAG;
+	return 0;
+    case R_ST_VALUE:
+	if (c == '>')
+	    *status = R_ST_NORMAL;
+	else if (IS_SPACE(c))
+	    *status = R_ST_TAG;
+	return 0;
+    case R_ST_AMP:
+	if (c == ';') {
+	    *status = R_ST_NORMAL;
+	    return 0;
+	}
+	else if (c != '#' && !IS_ALNUM(c) && c != '_') {
+	    /* something's wrong! */
+	    *status = R_ST_NORMAL;
+	    return 0;
+	}
+	else
+	    return 0;
+    case R_ST_CMNT1:
+	switch (c) {
+	case '-':
+	    *status = R_ST_CMNT2;
+	    break;
+	case '>':
+	    *status = R_ST_NORMAL;
+	    break;
+	default:
+	    *status = R_ST_IRRTAG;
+	}
+	return 0;
+    case R_ST_CMNT2:
+	switch (c) {
+	case '-':
+	    *status = R_ST_CMNT;
+	    break;
+	case '>':
+	    *status = R_ST_NORMAL;
+	    break;
+	default:
+	    *status = R_ST_IRRTAG;
+	}
+	return 0;
+    case R_ST_CMNT:
+	if (c == '-')
+	    *status = R_ST_NCMNT1;
+	return 0;
+    case R_ST_NCMNT1:
+	if (c == '-')
+	    *status = R_ST_NCMNT2;
+	else
+	    *status = R_ST_CMNT;
+	return 0;
+    case R_ST_NCMNT2:
+	switch (c) {
+	case '>':
+	    *status = R_ST_NORMAL;
+	    break;
+	case '-':
+	    *status = R_ST_NCMNT2;
+	    break;
+	default:
+	    if (IS_SPACE(c))
+		*status = R_ST_NCMNT3;
+	    else
+		*status = R_ST_CMNT;
+	    break;
+	}
+	break;
+    case R_ST_NCMNT3:
+	switch (c) {
+	case '>':
+	    *status = R_ST_NORMAL;
+	    break;
+	case '-':
+	    *status = R_ST_NCMNT1;
+	    break;
+	default:
+	    if (IS_SPACE(c))
+		*status = R_ST_NCMNT3;
+	    else
+		*status = R_ST_CMNT;
+	    break;
+	}
+	return 0;
+    case R_ST_IRRTAG:
+	if (c == '>')
+	    *status = R_ST_NORMAL;
+	return 0;
+    }
+    /* notreached */
+    return 0;
+}
+
+int
+read_token(Str buf, char **instr, int *status, int pre, int append)
+{
+    char *p;
+    int prev_status;
+
+    if (!append)
+	Strclear(buf);
+    if (**instr == '\0')
+	return 0;
+    for (p = *instr; *p; p++) {
+	prev_status = *status;
+	next_status(*p, status);
+	switch (*status) {
+	case R_ST_NORMAL:
+	    if (prev_status == R_ST_AMP && *p != ';') {
+		p--;
+		break;
+	    }
+	    if (prev_status == R_ST_NCMNT2 || prev_status == R_ST_NCMNT3 ||
+		prev_status == R_ST_IRRTAG || prev_status == R_ST_CMNT1) {
+		if (prev_status == R_ST_CMNT1 && !append && !pre)
+		    Strclear(buf);
+		if (pre)
+		    Strcat_char(buf, *p);
+		p++;
+		goto proc_end;
+	    }
+	    Strcat_char(buf, (!pre && IS_SPACE(*p)) ? ' ' : *p);
+	    if (ST_IS_REAL_TAG(prev_status)) {
+		*instr = p + 1;
+		if (buf->length < 2 ||
+		    buf->ptr[buf->length - 2] != '<' ||
+		    buf->ptr[buf->length - 1] != '>')
+		    return 1;
+		Strshrink(buf, 2);
+	    }
+	    break;
+	case R_ST_TAG0:
+	case R_ST_TAG:
+	    if (prev_status == R_ST_NORMAL && p != *instr) {
+		*instr = p;
+		*status = prev_status;
+		return 1;
+	    }
+	    if (*status == R_ST_TAG0 && !REALLY_THE_BEGINNING_OF_A_TAG(p)) {
+		/* it seems that this '<' is not a beginning of a tag */
+		/*
+		 * Strcat_charp(buf, "&lt;");
+		 */
+		Strcat_char(buf, '<');
+		*status = R_ST_NORMAL;
+	    }
+	    else
+		Strcat_char(buf, *p);
+	    break;
+	case R_ST_EQL:
+	case R_ST_QUOTE:
+	case R_ST_DQUOTE:
+	case R_ST_VALUE:
+	case R_ST_AMP:
+	    Strcat_char(buf, *p);
+	    break;
+	case R_ST_CMNT:
+	case R_ST_IRRTAG:
+	    if (pre)
+		Strcat_char(buf, *p);
+	    else if (!append)
+		Strclear(buf);
+	    break;
+	case R_ST_CMNT1:
+	case R_ST_CMNT2:
+	case R_ST_NCMNT1:
+	case R_ST_NCMNT2:
+	case R_ST_NCMNT3:
+	    /* do nothing */
+	    if (pre)
+		Strcat_char(buf, *p);
+	    break;
+	}
+    }
+  proc_end:
+    *instr = p;
+    return 1;
+}
+
+Str
+correct_irrtag(int status)
+{
+    char c;
+    Str tmp = Strnew();
+
+    while (status != R_ST_NORMAL) {
+	switch (status) {
+	case R_ST_CMNT:	/* required "-->" */
+	case R_ST_NCMNT1:	/* required "->" */
+	    c = '-';
+	    break;
+	case R_ST_NCMNT2:
+	case R_ST_NCMNT3:
+	case R_ST_IRRTAG:
+	case R_ST_CMNT1:
+	case R_ST_CMNT2:
+	case R_ST_TAG:
+	case R_ST_TAG0:
+	case R_ST_EQL:		/* required ">" */
+	case R_ST_VALUE:
+	    c = '>';
+	    break;
+	case R_ST_QUOTE:
+	    c = '\'';
+	    break;
+	case R_ST_DQUOTE:
+	    c = '"';
+	    break;
+	case R_ST_AMP:
+	    c = ';';
+	    break;
+	default:
+	    return tmp;
+	}
+	next_status(c, &status);
+	Strcat_char(tmp, c);
+    }
+    return tmp;
+}
+
+/*
+ * RFC2617: 1.2 Access Authentication Framework
+ *
+ * The realm value (case-sensitive), in combination with the canonical root
+ * URL (the absoluteURI for the server whose abs_path is empty; see section
+ * 5.1.2 of RFC2616 ) of the server being accessed, defines the protection
+ * space. These realms allow the protected resources on a server to be
+ * partitioned into a set of protection spaces, each with its own
+ * authentication scheme and/or authorization database.
+ *
+ */
+static void
+add_auth_pass_entry(const struct auth_pass *ent, int netrc, int override)
+{
+    if ((ent->host || netrc)	/* netrc accept default (host == NULL) */
+	&&(ent->is_proxy || ent->realm || netrc)
+	&& ent->uname && ent->pwd) {
+	struct auth_pass *newent = New(struct auth_pass);
+	memcpy(newent, ent, sizeof(struct auth_pass));
+	if (override) {
+	    newent->next = passwords;
+	    passwords = newent;
+	} 
+	else {
+	    if (passwords == NULL)
+		passwords = newent;
+	    else if (passwords->next == NULL)
+		passwords->next = newent;
+	    else {
+		struct auth_pass *ep = passwords;
+		for (; ep->next; ep = ep->next) ;
+		ep->next = newent;
+	    }
+	}
+    }
+    /* ignore invalid entries */
+}
+
+static struct auth_pass *
+find_auth_pass_entry(char *host, int port, char *realm, char *uname, 
+		     int is_proxy)
+{
+    struct auth_pass *ent;
+    for (ent = passwords; ent != NULL; ent = ent->next) {
+	if (ent->is_proxy == is_proxy
+	    && (ent->bad != TRUE)
+	    && (!ent->host || !Strcasecmp_charp(ent->host, host))
+	    && (!ent->port || ent->port == port)
+	    && (!ent->uname || !uname || !Strcmp_charp(ent->uname, uname))
+	    && (!ent->realm || !realm || !Strcmp_charp(ent->realm, realm))
+	    )
+	    return ent;
+    }
+    return NULL;
+}
+
+int
+find_auth_user_passwd(ParsedURL *pu, char *realm,
+		      Str *uname, Str *pwd, int is_proxy)
+{
+    struct auth_pass *ent;
+
+    if (pu->user && pu->pass) {
+	*uname = Strnew_charp(pu->user);
+	*pwd = Strnew_charp(pu->pass);
+	return 1;
+    }
+    ent = find_auth_pass_entry(pu->host, pu->port, realm, pu->user, is_proxy);
+    if (ent) {
+	*uname = ent->uname;
+	*pwd = ent->pwd;
+	return 1;
+    }
+    return 0;
+}
+
+void
+add_auth_user_passwd(ParsedURL *pu, char *realm, Str uname, Str pwd, 
+		     int is_proxy)
+{
+    struct auth_pass ent;
+    memset(&ent, 0, sizeof(ent));
+
+    ent.is_proxy = is_proxy;
+    ent.host = Strnew_charp(pu->host);
+    ent.port = pu->port;
+    ent.realm = Strnew_charp(realm);
+    ent.uname = uname;
+    ent.pwd = pwd;
+    add_auth_pass_entry(&ent, 0, 1);
+}
+
+void
+invalidate_auth_user_passwd(ParsedURL *pu, char *realm, Str uname, Str pwd, 
+			    int is_proxy)
+{
+    struct auth_pass *ent;
+    ent = find_auth_pass_entry(pu->host, pu->port, realm, NULL, is_proxy);
+    if (ent) {
+	ent->bad = TRUE;
+    }
+    return;
+}
+
+/* passwd */
+/*
+ * machine <host>
+ * host <host>
+ * port <port>
+ * proxy
+ * path <file>	; not used
+ * realm <realm>
+ * login <login>
+ * passwd <passwd>
+ * password <passwd>
+ */
+
+static Str
+next_token(Str arg)
+{
+    Str narg = NULL;
+    char *p, *q;
+    if (arg == NULL || arg->length == 0)
+	return NULL;
+    p = arg->ptr;
+    q = p;
+    SKIP_NON_BLANKS(q);
+    if (*q != '\0') {
+	*q++ = '\0';
+	SKIP_BLANKS(q);
+	if (*q != '\0')
+	    narg = Strnew_charp(q);
+    }
+    return narg;
+}
+
+static void
+parsePasswd(FILE * fp, int netrc)
+{
+    struct auth_pass ent;
+    Str line = NULL;
+
+    bzero(&ent, sizeof(struct auth_pass));
+    while (1) {
+	Str arg = NULL;
+	char *p;
+
+	if (line == NULL || line->length == 0)
+	    line = Strfgets(fp);
+	if (line->length == 0)
+	    break;
+	Strchop(line);
+	Strremovefirstspaces(line);
+	p = line->ptr;
+	if (*p == '#' || *p == '\0') {
+	    line = NULL;
+	    continue;		/* comment or empty line */
+	}
+	arg = next_token(line);
+
+	if (!strcmp(p, "machine") || !strcmp(p, "host")
+	    || (netrc && !strcmp(p, "default"))) {
+	    add_auth_pass_entry(&ent, netrc, 0);
+	    bzero(&ent, sizeof(struct auth_pass));
+	    if (netrc)
+		ent.port = 21;	/* XXX: getservbyname("ftp"); ? */
+	    if (strcmp(p, "default") != 0) {
+		line = next_token(arg);
+		ent.host = arg;
+	    }
+	    else {
+		line = arg;
+	    }
+	}
+	else if (!netrc && !strcmp(p, "port") && arg) {
+	    line = next_token(arg);
+	    ent.port = atoi(arg->ptr);
+	}
+	else if (!netrc && !strcmp(p, "proxy")) {
+	    ent.is_proxy = 1;
+	    line = arg;
+	}
+	else if (!netrc && !strcmp(p, "path")) {
+	    line = next_token(arg);
+	    /* ent.file = arg; */
+	}
+	else if (!netrc && !strcmp(p, "realm")) {
+	    /* XXX: rest of line becomes arg for realm */
+	    line = NULL;
+	    ent.realm = arg;
+	}
+	else if (!strcmp(p, "login")) {
+	    line = next_token(arg);
+	    ent.uname = arg;
+	}
+	else if (!strcmp(p, "password") || !strcmp(p, "passwd")) {
+	    line = next_token(arg);
+	    ent.pwd = arg;
+	}
+	else if (netrc && !strcmp(p, "machdef")) {
+	    while ((line = Strfgets(fp))->length != 0) {
+		if (*line->ptr == '\n')
+		    break;
+	    }
+	    line = NULL;
+	}
+	else if (netrc && !strcmp(p, "account")) {
+	    /* ignore */
+	    line = next_token(arg);
+	}
+	else {
+	    /* ignore rest of line */
+	    line = NULL;
+	}
+    }
+    add_auth_pass_entry(&ent, netrc, 0);
+}
+
+/* FIXME: gettextize? */
+#define FILE_IS_READABLE_MSG "SECURITY NOTE: file %s must not be accessible by others"
+
+FILE *
+openSecretFile(char *fname)
+{
+    char *efname;
+    struct stat st;
+
+    if (fname == NULL)
+	return NULL;
+    efname = expandPath(fname);
+    if (stat(efname, &st) < 0)
+	return NULL;
+
+    /* check permissions, if group or others readable or writable,
+     * refuse it, because it's insecure.
+     *
+     * XXX: disable_secret_security_check will introduce some
+     *    security issues, but on some platform such as Windows
+     *    it's not possible (or feasible) to disable group|other
+     *    readable and writable.
+     *   [w3m-dev 03368][w3m-dev 03369][w3m-dev 03370]
+     */
+    if (disable_secret_security_check)
+	/* do nothing */ ;
+    else if ((st.st_mode & (S_IRWXG | S_IRWXO)) != 0) {
+	if (fmInitialized) {
+	    message(Sprintf(FILE_IS_READABLE_MSG, fname)->ptr, 0, 0);
+	    refresh();
+	}
+	else {
+	    fputs(Sprintf(FILE_IS_READABLE_MSG, fname)->ptr, stderr);
+	    fputc('\n', stderr);
+	}
+	sleep(2);
+	return NULL;
+    }
+
+    return fopen(efname, "r");
+}
+
+void
+loadPasswd(void)
+{
+    FILE *fp;
+
+    passwords = NULL;
+    fp = openSecretFile(passwd_file);
+    if (fp != NULL) {
+	parsePasswd(fp, 0);
+	fclose(fp);
+    }
+
+    /* for FTP */
+    fp = openSecretFile("~/.netrc");
+    if (fp != NULL) {
+	parsePasswd(fp, 1);
+	fclose(fp);
+    }
+    return;
+}
+
+/* get last modified time */
+char *
+last_modified(Buffer *buf)
+{
+    TextListItem *ti;
+    struct stat st;
+
+    if (buf->document_header) {
+	for (ti = buf->document_header->first; ti; ti = ti->next) {
+	    if (strncasecmp(ti->ptr, "Last-modified: ", 15) == 0) {
+		return ti->ptr + 15;
+	    }
+	}
+	return "unknown";
+    }
+    else if (buf->currentURL.scheme == SCM_LOCAL) {
+	if (stat(buf->currentURL.file, &st) < 0)
+	    return "unknown";
+	return ctime(&st.st_mtime);
+    }
+    return "unknown";
+}
+
+static char roman_num1[] = {
+    'i', 'x', 'c', 'm', '*',
+};
+static char roman_num5[] = {
+    'v', 'l', 'd', '*',
+};
+
+static Str
+romanNum2(int l, int n)
+{
+    Str s = Strnew();
+
+    switch (n) {
+    case 1:
+    case 2:
+    case 3:
+	for (; n > 0; n--)
+	    Strcat_char(s, roman_num1[l]);
+	break;
+    case 4:
+	Strcat_char(s, roman_num1[l]);
+	Strcat_char(s, roman_num5[l]);
+	break;
+    case 5:
+    case 6:
+    case 7:
+    case 8:
+	Strcat_char(s, roman_num5[l]);
+	for (n -= 5; n > 0; n--)
+	    Strcat_char(s, roman_num1[l]);
+	break;
+    case 9:
+	Strcat_char(s, roman_num1[l]);
+	Strcat_char(s, roman_num1[l + 1]);
+	break;
+    }
+    return s;
+}
+
+Str
+romanNumeral(int n)
+{
+    Str r = Strnew();
+
+    if (n <= 0)
+	return r;
+    if (n >= 4000) {
+	Strcat_charp(r, "**");
+	return r;
+    }
+    Strcat(r, romanNum2(3, n / 1000));
+    Strcat(r, romanNum2(2, (n % 1000) / 100));
+    Strcat(r, romanNum2(1, (n % 100) / 10));
+    Strcat(r, romanNum2(0, n % 10));
+
+    return r;
+}
+
+Str
+romanAlphabet(int n)
+{
+    Str r = Strnew();
+    int l;
+    char buf[14];
+
+    if (n <= 0)
+	return r;
+
+    l = 0;
+    while (n) {
+	buf[l++] = 'a' + (n - 1) % 26;
+	n = (n - 1) / 26;
+    }
+    l--;
+    for (; l >= 0; l--)
+	Strcat_char(r, buf[l]);
+
+    return r;
+}
+
+#ifndef SIGIOT
+#define SIGIOT SIGABRT
+#endif				/* not SIGIOT */
+
+static void
+reset_signals(void)
+{
+    mySignal(SIGHUP, SIG_DFL);	/* terminate process */
+    mySignal(SIGINT, SIG_DFL);	/* terminate process */
+    mySignal(SIGQUIT, SIG_DFL);	/* terminate process */
+    mySignal(SIGTERM, SIG_DFL);	/* terminate process */
+    mySignal(SIGILL, SIG_DFL);	/* create core image */
+    mySignal(SIGIOT, SIG_DFL);	/* create core image */
+    mySignal(SIGFPE, SIG_DFL);	/* create core image */
+#ifdef SIGBUS
+    mySignal(SIGBUS, SIG_DFL);	/* create core image */
+#endif				/* SIGBUS */
+#ifdef SIGCHLD
+    mySignal(SIGCHLD, SIG_IGN);
+#endif
+#ifdef SIGPIPE
+    mySignal(SIGPIPE, SIG_IGN);
+#endif
+}
+
+#ifndef FOPEN_MAX
+#define FOPEN_MAX 1024		/* XXX */
+#endif
+
+static void
+close_all_fds_except(int i, int f)
+{
+    switch (i) {		/* fall through */
+    case 0:
+	dup2(open(DEV_NULL_PATH, O_RDONLY), 0);
+    case 1:
+	dup2(open(DEV_NULL_PATH, O_WRONLY), 1);
+    case 2:
+	dup2(open(DEV_NULL_PATH, O_WRONLY), 2);
+    }
+    /* close all other file descriptors (socket, ...) */
+    for (i = 3; i < FOPEN_MAX; i++) {
+	if (i != f)
+	    close(i);
+    }
+}
+
+void
+setup_child(int child, int i, int f)
+{
+    reset_signals();
+    mySignal(SIGINT, SIG_IGN);
+    if (!child)
+	SETPGRP();
+    close_tty();
+    close_all_fds_except(i, f);
+    QuietMessage = TRUE;
+    fmInitialized = FALSE;
+    TrapSignal = FALSE;
+}
+
+pid_t
+open_pipe_rw(FILE ** fr, FILE ** fw)
+{
+    int fdr[2];
+    int fdw[2];
+    pid_t pid;
+
+    if (fr && pipe(fdr) < 0)
+	goto err0;
+    if (fw && pipe(fdw) < 0)
+	goto err1;
+
+    flush_tty();
+    pid = fork();
+    if (pid < 0)
+	goto err2;
+    if (pid == 0) {
+	/* child */
+	if (fr) {
+	    close(fdr[0]);
+	    dup2(fdr[1], 1);
+	}
+	if (fw) {
+	    close(fdw[1]);
+	    dup2(fdw[0], 0);
+	}
+    }
+    else {
+	if (fr) {
+	    close(fdr[1]);
+	    if (*fr == stdin)
+		dup2(fdr[0], 0);
+	    else
+		*fr = fdopen(fdr[0], "r");
+	}
+	if (fw) {
+	    close(fdw[0]);
+	    if (*fw == stdout)
+		dup2(fdw[1], 1);
+	    else
+		*fw = fdopen(fdw[1], "w");
+	}
+    }
+    return pid;
+  err2:
+    if (fw) {
+	close(fdw[0]);
+	close(fdw[1]);
+    }
+  err1:
+    if (fr) {
+	close(fdr[0]);
+	close(fdr[1]);
+    }
+  err0:
+    return (pid_t) - 1;
+}
+
+void
+myExec(char *command)
+{
+    mySignal(SIGINT, SIG_DFL);
+    execl("/bin/sh", "sh", "-c", command, NULL);
+    exit(127);
+}
+
+void
+mySystem(char *command, int background)
+{
+    if (background) {
+#ifndef __EMX__
+	flush_tty();
+	if (!fork()) {
+	    setup_child(FALSE, 0, -1);
+	    myExec(command);
+	}
+#else
+	Str cmd = Strnew_charp("start /f ");
+	Strcat_charp(cmd, command);
+	system(cmd->ptr);
+#endif
+    }
+    else
+	system(command);
+}
+
+Str
+myExtCommand(char *cmd, char *arg, int redirect)
+{
+    Str tmp = NULL;
+    char *p;
+    int set_arg = FALSE;
+
+    for (p = cmd; *p; p++) {
+	if (*p == '%' && *(p + 1) == 's' && !set_arg) {
+	    if (tmp == NULL)
+		tmp = Strnew_charp_n(cmd, (int)(p - cmd));
+	    Strcat_charp(tmp, arg);
+	    set_arg = TRUE;
+	    p++;
+	}
+	else {
+	    if (tmp)
+		Strcat_char(tmp, *p);
+	}
+    }
+    if (!set_arg) {
+	if (redirect)
+	    tmp = Strnew_m_charp("(", cmd, ") < ", arg, NULL);
+	else
+	    tmp = Strnew_m_charp(cmd, " ", arg, NULL);
+    }
+    return tmp;
+}
+
+Str
+myEditor(char *cmd, char *file, int line)
+{
+    Str tmp = NULL;
+    char *p;
+    int set_file = FALSE, set_line = FALSE;
+
+    for (p = cmd; *p; p++) {
+	if (*p == '%' && *(p + 1) == 's' && !set_file) {
+	    if (tmp == NULL)
+		tmp = Strnew_charp_n(cmd, (int)(p - cmd));
+	    Strcat_charp(tmp, file);
+	    set_file = TRUE;
+	    p++;
+	}
+	else if (*p == '%' && *(p + 1) == 'd' && !set_line && line > 0) {
+	    if (tmp == NULL)
+		tmp = Strnew_charp_n(cmd, (int)(p - cmd));
+	    Strcat(tmp, Sprintf("%d", line));
+	    set_line = TRUE;
+	    p++;
+	}
+	else {
+	    if (tmp)
+		Strcat_char(tmp, *p);
+	}
+    }
+    if (!set_file) {
+	if (tmp == NULL)
+	    tmp = Strnew_charp(cmd);
+	if (!set_line && line > 1 && strcasestr(cmd, "vi"))
+	    Strcat(tmp, Sprintf(" +%d", line));
+	Strcat_m_charp(tmp, " ", file, NULL);
+    }
+    return tmp;
+}
+
+char *
+expandName(char *name)
+{
+    char *p;
+    struct passwd *passent, *getpwnam(const char *);
+    Str extpath = NULL;
+
+    if (name == NULL)
+	return NULL;
+    p = name;
+    if (*p == '/') {
+	if ((*(p + 1) == '~' && IS_ALPHA(*(p + 2)))
+	    && personal_document_root) {
+	    char *q;
+	    p += 2;
+	    q = strchr(p, '/');
+	    if (q) {		/* /~user/dir... */
+		passent = getpwnam(allocStr(p, q - p));
+		p = q;
+	    }
+	    else {		/* /~user */
+		passent = getpwnam(p);
+		p = "";
+	    }
+	    if (!passent)
+		goto rest;
+	    extpath = Strnew_m_charp(passent->pw_dir, "/",
+				     personal_document_root, NULL);
+	    if (*personal_document_root == '\0' && *p == '/')
+		p++;
+	}
+	else
+	    goto rest;
+	if (Strcmp_charp(extpath, "/") == 0 && *p == '/')
+	    p++;
+	Strcat_charp(extpath, p);
+	return extpath->ptr;
+    }
+    else
+	return expandPath(p);
+  rest:
+    return name;
+}
+
+char *
+file_to_url(char *file)
+{
+    Str tmp;
+#ifdef SUPPORT_DOS_DRIVE_PREFIX
+    char *drive = NULL;
+#endif
+#ifdef SUPPORT_NETBIOS_SHARE
+    char *host = NULL;
+#endif
+
+    file = expandPath(file);
+#ifdef SUPPORT_NETBIOS_SHARE
+    if (file[0] == '/' && file[1] == '/') {
+	char *p;
+	file += 2;
+	if (*file) {
+	    p = strchr(file, '/');
+	    if (p != NULL && p != file) {
+		host = allocStr(file, (p - file));
+		file = p;
+	    }
+	}
+    }
+#endif
+#ifdef SUPPORT_DOS_DRIVE_PREFIX
+    if (IS_ALPHA(file[0]) && file[1] == ':') {
+	drive = allocStr(file, 2);
+	file += 2;
+    }
+    else
+#endif
+    if (file[0] != '/') {
+	tmp = Strnew_charp(CurrentDir);
+	if (Strlastchar(tmp) != '/')
+	    Strcat_char(tmp, '/');
+	Strcat_charp(tmp, file);
+	file = tmp->ptr;
+    }
+    tmp = Strnew_charp("file://");
+#ifdef SUPPORT_NETBIOS_SHARE
+    if (host)
+	Strcat_charp(tmp, host);
+#endif
+#ifdef SUPPORT_DOS_DRIVE_PREFIX
+    if (drive)
+	Strcat_charp(tmp, drive);
+#endif
+    Strcat_charp(tmp, file_quote(cleanupName(file)));
+    return tmp->ptr;
+}
+
+#ifdef USE_M17N
+char *
+url_unquote_conv(char *url, wc_ces charset)
+#else
+char *
+url_unquote_conv0(char *url)
+#endif
+{
+#ifdef USE_M17N
+    wc_uint8 old_auto_detect = WcOption.auto_detect;
+#endif
+    Str tmp;
+    tmp = Str_url_unquote(Strnew_charp(url), FALSE, TRUE);
+#ifdef USE_M17N
+    if (!charset || charset == WC_CES_US_ASCII)
+	charset = SystemCharset;
+    WcOption.auto_detect = WC_OPT_DETECT_ON;
+    tmp = convertLine(NULL, tmp, RAW_MODE, &charset, charset);
+    WcOption.auto_detect = old_auto_detect;
+#endif
+    return tmp->ptr;
+}
+
+static char *tmpf_base[MAX_TMPF_TYPE] = {
+    "tmp", "src", "frame", "cache", "cookie",
+};
+static unsigned int tmpf_seq[MAX_TMPF_TYPE];
+
+Str
+tmpfname(int type, char *ext)
+{
+    Str tmpf;
+    tmpf = Sprintf("%s/w3m%s%d-%d%s",
+		   tmp_dir,
+		   tmpf_base[type],
+		   CurrentPid, tmpf_seq[type]++, (ext) ? ext : "");
+    pushText(fileToDelete, tmpf->ptr);
+    return tmpf;
+}
+
+static char *monthtbl[] = {
+    "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+    "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+};
+
+static int
+get_day(char **s)
+{
+    Str tmp = Strnew();
+    int day;
+    char *ss = *s;
+
+    if (!**s)
+	return -1;
+
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+
+    day = atoi(tmp->ptr);
+
+    if (day < 1 || day > 31) {
+	*s = ss;
+	return -1;
+    }
+    return day;
+}
+
+static int
+get_month(char **s)
+{
+    Str tmp = Strnew();
+    int mon;
+    char *ss = *s;
+
+    if (!**s)
+	return -1;
+
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    if (tmp->length > 0) {
+	mon = atoi(tmp->ptr);
+    }
+    else {
+	while (**s && IS_ALPHA(**s))
+	    Strcat_char(tmp, *((*s)++));
+	for (mon = 1; mon <= 12; mon++) {
+	    if (strncmp(tmp->ptr, monthtbl[mon - 1], 3) == 0)
+		break;
+	}
+    }
+    if (mon < 1 || mon > 12) {
+	*s = ss;
+	return -1;
+    }
+    return mon;
+}
+
+static int
+get_year(char **s)
+{
+    Str tmp = Strnew();
+    int year;
+    char *ss = *s;
+
+    if (!**s)
+	return -1;
+
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    if (tmp->length != 2 && tmp->length != 4) {
+	*s = ss;
+	return -1;
+    }
+
+    year = atoi(tmp->ptr);
+    if (tmp->length == 2) {
+	if (year >= 70)
+	    year += 1900;
+	else
+	    year += 2000;
+    }
+    return year;
+}
+
+static int
+get_time(char **s, int *hour, int *min, int *sec)
+{
+    Str tmp = Strnew();
+    char *ss = *s;
+
+    if (!**s)
+	return -1;
+
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    if (**s != ':') {
+	*s = ss;
+	return -1;
+    }
+    *hour = atoi(tmp->ptr);
+
+    (*s)++;
+    Strclear(tmp);
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    if (**s != ':') {
+	*s = ss;
+	return -1;
+    }
+    *min = atoi(tmp->ptr);
+
+    (*s)++;
+    Strclear(tmp);
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    *sec = atoi(tmp->ptr);
+
+    if (*hour < 0 || *hour >= 24 ||
+	*min < 0 || *min >= 60 || *sec < 0 || *sec >= 60) {
+	*s = ss;
+	return -1;
+    }
+    return 0;
+}
+
+static int
+get_zone(char **s, int *z_hour, int *z_min)
+{
+    Str tmp = Strnew();
+    int zone;
+    char *ss = *s;
+
+    if (!**s)
+	return -1;
+
+    if (**s == '+' || **s == '-')
+	Strcat_char(tmp, *((*s)++));
+    while (**s && IS_DIGIT(**s))
+	Strcat_char(tmp, *((*s)++));
+    if (!(tmp->length == 4 && IS_DIGIT(*ss)) &&
+	!(tmp->length == 5 && (*ss == '+' || *ss == '-'))) {
+	*s = ss;
+	return -1;
+    }
+
+    zone = atoi(tmp->ptr);
+    *z_hour = zone / 100;
+    *z_min = zone - (zone / 100) * 100;
+    return 0;
+}
+
+/* RFC 1123 or RFC 850 or ANSI C asctime() format string -> time_t */
+time_t
+mymktime(char *timestr)
+{
+    char *s;
+    int day, mon, year, hour, min, sec, z_hour = 0, z_min = 0;
+
+    if (!(timestr && *timestr))
+	return -1;
+    s = timestr;
+
+#ifdef DEBUG
+    fprintf(stderr, "mktime: %s\n", timestr);
+#endif				/* DEBUG */
+
+    while (*s && IS_ALPHA(*s))
+	s++;
+    while (*s && !IS_ALNUM(*s))
+	s++;
+
+    if (IS_DIGIT(*s)) {
+	/* RFC 1123 or RFC 850 format */
+	if ((day = get_day(&s)) == -1)
+	    return -1;
+
+	while (*s && !IS_ALNUM(*s))
+	    s++;
+	if ((mon = get_month(&s)) == -1)
+	    return -1;
+
+	while (*s && !IS_DIGIT(*s))
+	    s++;
+	if ((year = get_year(&s)) == -1)
+	    return -1;
+
+	while (*s && !IS_DIGIT(*s))
+	    s++;
+	if (!*s) {
+	    hour = 0;
+	    min = 0;
+	    sec = 0;
+	}
+	else {
+	    if (get_time(&s, &hour, &min, &sec) == -1)
+		return -1;
+	    while (*s && !IS_DIGIT(*s) && *s != '+' && *s != '-')
+		s++;
+	    get_zone(&s, &z_hour, &z_min);
+	}
+    }
+    else {
+	/* ANSI C asctime() format. */
+	while (*s && !IS_ALNUM(*s))
+	    s++;
+	if ((mon = get_month(&s)) == -1)
+	    return -1;
+
+	while (*s && !IS_DIGIT(*s))
+	    s++;
+	if ((day = get_day(&s)) == -1)
+	    return -1;
+
+	while (*s && !IS_DIGIT(*s))
+	    s++;
+	if (get_time(&s, &hour, &min, &sec) == -1)
+	    return -1;
+
+	while (*s && !IS_DIGIT(*s))
+	    s++;
+	if ((year = get_year(&s)) == -1)
+	    return -1;
+    }
+#ifdef DEBUG
+    fprintf(stderr,
+	    "year=%d month=%d day=%d hour:min:sec=%d:%d:%d zone=%d:%d\n", year,
+	    mon, day, hour, min, sec, z_hour, z_min);
+#endif				/* DEBUG */
+
+    mon -= 3;
+    if (mon < 0) {
+	mon += 12;
+	year--;
+    }
+    day += (year - 1968) * 1461 / 4;
+    day += ((((mon * 153) + 2) / 5) - 672);
+    hour -= z_hour;
+    min -= z_min;
+    return (time_t) ((day * 60 * 60 * 24) +
+		     (hour * 60 * 60) + (min * 60) + sec);
+}
+
+#ifdef USE_COOKIE
+#ifdef INET6
+#include <sys/socket.h>
+#endif				/* INET6 */
+#include <netdb.h>
+char *
+FQDN(char *host)
+{
+    char *p;
+#ifndef INET6
+    struct hostent *entry;
+#else				/* INET6 */
+    int *af;
+#endif				/* INET6 */
+
+    if (host == NULL)
+	return NULL;
+
+    if (strcasecmp(host, "localhost") == 0)
+	return host;
+
+    for (p = host; *p && *p != '.'; p++) ;
+
+    if (*p == '.')
+	return host;
+
+#ifndef INET6
+    if (!(entry = gethostbyname(host)))
+	return NULL;
+
+    return allocStr(entry->h_name, -1);
+#else				/* INET6 */
+    for (af = ai_family_order_table[DNS_order];; af++) {
+	int error;
+	struct addrinfo hints;
+	struct addrinfo *res, *res0;
+	char *namebuf;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_flags = AI_CANONNAME;
+	hints.ai_family = *af;
+	hints.ai_socktype = SOCK_STREAM;
+	error = getaddrinfo(host, NULL, &hints, &res0);
+	if (error) {
+	    if (*af == PF_UNSPEC) {
+		/* all done */
+		break;
+	    }
+	    /* try next address family */
+	    continue;
+	}
+	for (res = res0; res != NULL; res = res->ai_next) {
+	    if (res->ai_canonname) {
+		/* found */
+		namebuf = strdup(res->ai_canonname);
+		freeaddrinfo(res0);
+		return namebuf;
+	    }
+	}
+	freeaddrinfo(res0);
+	if (*af == PF_UNSPEC) {
+	    break;
+	}
+    }
+    /* all failed */
+    return NULL;
+#endif				/* INET6 */
+}
+
+#endif				/* USE_COOKIE */
+
+void (*mySignal(int signal_number, void (*action) (int))) (int) {
+#ifdef	SA_RESTART
+    struct sigaction new_action, old_action;
+
+    sigemptyset(&new_action.sa_mask);
+    new_action.sa_handler = action;
+    if (signal_number == SIGALRM) {
+#ifdef	SA_INTERRUPT
+	new_action.sa_flags = SA_INTERRUPT;
+#else
+	new_action.sa_flags = 0;
+#endif
+    }
+    else {
+	new_action.sa_flags = SA_RESTART;
+    }
+    sigaction(signal_number, &new_action, &old_action);
+    return (old_action.sa_handler);
+#else
+    return (signal(signal_number, action));
+#endif
+}