79 	char *p;		/* scratch pointer */  in doconfig()  local
92 		p = strchr(buf, '\n');  in doconfig()
94 		if (p == NULL) {  in doconfig()
98 		*p = '\0';  in doconfig()
101 		p = strchr(buf, COMMENT);  in doconfig()
102 		if (p)  in doconfig()
103 			*p = '\0';  in doconfig()
112 		p = &buf[strlen(buf) - 1];  in doconfig()
113 		while (*p && isspace(*p))  in doconfig()
114 			*p-- = '\0';  in doconfig()
117 		p = bp;  in doconfig()
118 		while (*p && !isspace(*p))  in doconfig()
119 			p++;  in doconfig()
120 		if (*p)  in doconfig()
121 			*p++ = '\0';  in doconfig()
123 		p = eatwhite(p);  in doconfig()
126 			if ((rflag & NOASSIGN) || doassign(p)) {  in doconfig()
131 			if (dopush(fd, p)) {  in doconfig()
136 			if (dopop(fd, p)) {  in doconfig()
141 			if ((rflag & NORUN) || dorun(p, NOWAIT)) {  in doconfig()
146 			if ((rflag & NORUN) || dorun(p, WAIT)) {  in doconfig()
173 doassign(char *p)  in doassign()  argument
181 	if (*p == '\0')  in doassign()
183 	var = p;  in doassign()
185 	while (*p && !isspace(*p) && (*p != '='))  in doassign()
186 		p++;  in doassign()
189 	if (*p == '\0')  in doassign()
193 	if (isspace(*p)) {  in doassign()
194 		*p++ = '\0';  in doassign()
195 		while (*p && isspace(*p))  in doassign()
196 			p++;  in doassign()
197 		if (*p == '\0')  in doassign()
199 		if (*p == '=')  in doassign()
200 			p++;  in doassign()
205 		*p = '\0';  in doassign()
206 		p++;  in doassign()
210 	p = eatwhite(p);  in doassign()
211 	if (*p == '\'' || *p == '"') {  in doassign()
213 		delim = *p++;  in doassign()
216 			if (*p == '\0') {  in doassign()
218 			} else if (*p == delim) {  in doassign()
219 				if (*(p - 1) != '\\')  in doassign()
222 					*(tp - 1) = *p++;  in doassign()
224 				*tp++ = *p++;  in doassign()
231 		tp = ++p;  in doassign()
232 		p = val;  in doassign()
234 		tp = p;  in doassign()
248 	(void) snprintf(scratch, sizeof (scratch), "%s=%s", var, p);  in doassign()
269 dopush(int fd, char *p)  in dopush()  argument
275 	if (*p == '\0')  in dopush()
279 		if (*p == '\0')		/* found end of line */  in dopush()
281 		p = eatwhite(p);  in dopush()
282 		if (*p == '\0')  in dopush()
284 		tp = p;  in dopush()
289 		if (ioctl(fd, I_PUSH, p) < 0) {  in dopush()
302 		p = tp;  in dopush()
316 dopop(int fd, char *p)  in dopop()  argument
321 	if (*p == '\0') {  in dopop()
329 	p = eatwhite(p);  in dopop()
330 	modp = p;  in dopop()
332 	while (*p && !isspace(*p))  in dopop()
333 		p++;  in dopop()
335 	if (*p)		/* if not end of line, extra junk on line */  in dopop()
373 dorun(char *p, int waitflg)  in dorun()  argument
383 	if (*p == '\0')  in dorun()
390 	for (tp = p; *tp && !isspace(*tp); ++tp)  in dorun()
402 	if (strcmp(p, "cd") == 0) {  in dorun()
410 	} else if (strcmp(p, "ulimit") == 0) {  in dorun()
427 	} else if (strcmp(p, "umask") == 0) {  in dorun()
481 			(void) execl("/usr/bin/sh", "sh", "-c", p, NULL);  in dorun()
502 eatwhite(char *p)  in eatwhite()  argument
504 	while (*p && isspace(*p))  in eatwhite()
505 		p++;  in eatwhite()
506 	return (p);  in eatwhite()