xref: /titanic_52/usr/src/cmd/saf/util.c (revision 1a7c1b724419d3cb5fa6eea75123c6b2060ba31b)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23 /*	  All Rights Reserved  	*/
24 
25 
26 #ident	"%Z%%M%	%I%	%E% SMI"       /* SVr4.0 1.8*/
27 
28 
29 # include <stdio.h>
30 # include <ctype.h>
31 # include <sys/types.h>
32 # include <unistd.h>
33 # include "extern.h"
34 # include "misc.h"
35 # include <sac.h>
36 # include "structs.h"
37 # ifdef SAC
38 # include "msgs.h"
39 # endif
40 
41 char	Comment[SIZE];	/* place holder for comments */
42 
43 
44 /*
45  * nexttok - return next token, essentially a strtok, but it can
46  *	deal with null fields and strtok can not
47  *
48  *	args:	str - the string to be examined, NULL if we should
49  *		      examine the remembered string
50  *		delim - the list of valid delimiters
51  *		ros - rest of string flag (1 for rest of string, 0 for
52  *		      normal processing)
53  */
54 
55 
56 char *
57 nexttok(str, delim, ros)
58 char *str;
59 register char *delim;
60 int ros;
61 {
62 	static char *savep;	/* the remembered string */
63 	register char *p;	/* pointer to start of token */
64 	register char *ep;	/* pointer to end of token */
65 
66 	p = (str == NULL) ? savep : str ;
67 	if (ros)
68 		return(p);
69 	if (p == NULL)
70 		return(NULL);
71 	ep = strpbrk(p, delim);
72 	if (ep == NULL) {
73 		savep = NULL;
74 		return(p);
75 	}
76 	savep = ep + 1;
77 	*ep = '\0';
78 	return(p);
79 }
80 
81 
82 /*
83  * parse - parse a line from _sactab.  This routine will return if the parse
84  *		was successful, otherwise it will output an error and exit.
85  *
86  *	args:	p - pointer to the data read from the file
87  *		sp - pointer to a structure in which the separated fields
88  *		     are placed
89  *
90  *	A line in the file has the following format:
91  *
92  *	tag:type:flags:restart_count:command_string	#comment
93  */
94 
95 
96 void
97 parse(p, sp)
98 register char *p;
99 register struct sactab *sp;
100 {
101 	char scratch[SIZE];	/* a scratch buffer */
102 
103 /*
104  * get the PM tag
105  */
106 
107 	p = nexttok(p, DELIM, FALSE);
108 	if (p == NULL) {
109 # ifdef SAC
110 		error(E_BADFILE, EXIT);
111 # else
112 		Saferrno = E_SAFERR;
113 		error("_sactab file is corrupt");
114 # endif
115 	}
116 	if (strlen(p) > PMTAGSIZE) {
117 		p[PMTAGSIZE] = '\0';
118 # ifdef SAC
119 		(void) sprintf(scratch, "tag too long, truncated to <%s>", p);
120 		log(scratch);
121 # else
122 		(void) fprintf(stderr, "tag too long, truncated to <%s>", p);
123 # endif
124 	}
125 	(void) strcpy(sp->sc_tag, p);
126 
127 /*
128  * get the PM type
129  */
130 
131 	p = nexttok(NULL, DELIM, FALSE);
132 	if (p == NULL) {
133 # ifdef SAC
134 		error(E_BADFILE, EXIT);
135 # else
136 		Saferrno = E_SAFERR;
137 		error("_sactab file is corrupt");
138 # endif
139 	}
140 	if (strlen(p) > PMTYPESIZE) {
141 		p[PMTYPESIZE] = '\0';
142 # ifdef SAC
143 		(void) sprintf(scratch, "type too long, truncated to <%s>", p);
144 		log(scratch);
145 # else
146 		(void) fprintf(stderr, "type too long, truncated to <%s>", p);
147 # endif
148 	}
149 	(void) strcpy(sp->sc_type, p);
150 
151 /*
152  * get the flags
153  */
154 
155 	p = nexttok(NULL, DELIM, FALSE);
156 	if (p == NULL) {
157 # ifdef SAC
158 		error(E_BADFILE, EXIT);
159 # else
160 		Saferrno = E_SAFERR;
161 		error("_sactab file is corrupt");
162 # endif
163 	}
164 	sp->sc_flags = 0;
165 	while (*p) {
166 		switch (*p++) {
167 		case 'd':
168 			sp->sc_flags |= D_FLAG;
169 			break;
170 		case 'x':
171 			sp->sc_flags |= X_FLAG;
172 			break;
173 		default:
174 			(void) sprintf(scratch, "Unrecognized flag <%c>", *(p - 1));
175 # ifdef SAC
176 			log(scratch);
177 # else
178 			Saferrno = E_SAFERR;
179 			error(scratch);
180 # endif
181 			break;
182 		}
183 	}
184 
185 /*
186  * get the restart count
187  */
188 
189 	p = nexttok(NULL, DELIM, FALSE);
190 	if (p == NULL) {
191 # ifdef SAC
192 		error(E_BADFILE, EXIT);
193 # else
194 		Saferrno = E_SAFERR;
195 		error("_sactab file is corrupt");
196 # endif
197 	}
198 	sp->sc_rsmax = atoi(p);
199 
200 /*
201  * get the command string
202  */
203 
204 	p = nexttok(NULL, DELIM, FALSE);
205 	if (p == NULL) {
206 # ifdef SAC
207 		error(E_BADFILE, EXIT);
208 # else
209 		Saferrno = E_SAFERR;
210 		error("_sactab file is corrupt");
211 # endif
212 	}
213 	if ((sp->sc_cmd = malloc((unsigned) (strlen(p) + 1))) == NULL) {
214 # ifdef SAC
215 		error(E_MALLOC, EXIT);
216 # else
217 		Saferrno = E_SAFERR;
218 		error("malloc failed");
219 # endif
220 	}
221 	(void) strcpy(sp->sc_cmd, p);
222 
223 /*
224  * remember the comment string
225  */
226 
227 	if ((sp->sc_comment = malloc((unsigned) (strlen(Comment) + 1))) == NULL) {
228 # ifdef SAC
229 		error(E_MALLOC, EXIT);
230 # else
231 		Saferrno = E_SAFERR;
232 		error("malloc failed");
233 # endif
234 	}
235 	(void) strcpy(sp->sc_comment, Comment);
236 }
237 
238 
239 /*
240  * trim - remove comments, trim off trailing white space, done in place
241  *	args:	p - string to be acted upon
242  */
243 
244 char *
245 trim(p)
246 register char *p;
247 {
248 	register char *tp;	/* temp pointer */
249 
250 /*
251  * remove comments, if any, but remember them for later
252  */
253 
254 	tp = strchr(p, COMMENT);
255 	Comment[0] = '\0';
256 	if (tp) {
257 		(void) strcpy(Comment, tp + 1);	/* skip the '#' */
258 		*tp = '\0';
259 		tp = strchr(Comment, '\n');
260 		if (tp)
261 			*tp ='\0';
262 	}
263 
264 /*
265  * remove trailing whitespace, if any
266  */
267 
268 	for (tp = p + strlen(p) - 1; tp >= p && isspace(*tp); --tp)
269 		*tp = '\0';
270 	return(p);
271 }
272 
273 
274 /*
275  * pstate - put port monitor state into intelligible form for output
276  *	SSTATE is only used by sacadm
277  *
278  *	args:	state - binary representation of state
279  */
280 
281 char *
282 pstate(state)
283 unchar state;
284 {
285 	switch (state) {
286 	case NOTRUNNING:
287 		return("NOTRUNNING");
288 	case STARTING:
289 		return("STARTING");
290 	case ENABLED:
291 		return("ENABLED");
292 	case DISABLED:
293 		return("DISABLED");
294 	case STOPPING:
295 		return("STOPPING");
296 	case FAILED:
297 		return("FAILED");
298 	case UNKNOWN:
299 		return("UNKNOWN");
300 # ifndef SAC
301 	case SSTATE:
302 		return("NO_SAC");
303 # endif
304 	default:
305 # ifdef SAC
306 		error(E_BADSTATE, EXIT);
307 # else
308 		Saferrno = E_SAFERR;
309 		error("Improper message from SAC\n");
310 # endif
311 	}
312 	/* NOTREACHED */
313 }
314