2 * Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libc/gen/fmtmsg.c,v 1.6 2009/11/08 14:02:54 brueffer Exp $
34 /* Default value for MSGVERB. */
35 #define DFLT_MSGVERB "label:severity:text:action:tag"
37 /* Maximum valid size for a MSGVERB. */
38 #define MAX_MSGVERB sizeof(DFLT_MSGVERB)
40 static char *printfmt(char *, long, const char *, int, const char *,
41 const char *, const char *);
42 static char *nextcomp(const char *);
45 static int validmsgverb(const char *);
47 static const char *validlist[] = {
48 "label", "severity", "text", "action", "tag", NULL
52 fmtmsg(long class, const char *label, int sev, const char *text,
53 const char *action, const char *tag)
56 char *env, *msgverb, *output;
58 if (class & MM_PRINT) {
59 if ((env = getenv("MSGVERB")) != NULL && *env != '\0' &&
60 strlen(env) <= strlen(DFLT_MSGVERB)) {
61 if ((msgverb = strdup(env)) == NULL)
63 else if (validmsgverb(msgverb) == 0) {
69 if ((msgverb = strdup(DFLT_MSGVERB)) == NULL)
72 output = printfmt(msgverb, class, label, sev, text, action,
79 fprintf(stderr, "%s", output);
83 if (class & MM_CONSOLE) {
84 output = printfmt(DFLT_MSGVERB, class, label, sev, text,
88 if (*output != '\0') {
89 if ((fp = fopen("/dev/console", "a")) == NULL) {
93 fprintf(fp, "%s", output);
101 #define INSERT_COLON \
102 if (*output != '\0') \
103 strlcat(output, ": ", size)
104 #define INSERT_NEWLINE \
105 if (*output != '\0') \
106 strlcat(output, "\n", size)
107 #define INSERT_SPACE \
108 if (*output != '\0') \
109 strlcat(output, " ", size)
112 * Returns NULL on memory allocation failure, otherwise returns a pointer to
113 * a newly malloc()'d output buffer.
116 printfmt(char *msgverb, long class __unused, const char *label, int sev,
117 const char *text, const char *act, const char *tag)
124 if (label != MM_NULLLBL)
125 size += strlen(label);
126 if ((sevname = sevinfo(sev)) != NULL)
127 size += strlen(sevname);
128 if (text != MM_NULLTXT)
129 size += strlen(text);
130 if (act != MM_NULLACT)
132 if (tag != MM_NULLTAG)
135 if ((output = malloc(size)) == NULL)
138 while ((comp = nextcomp(msgverb)) != NULL) {
139 if (strcmp(comp, "label") == 0 && label != MM_NULLLBL) {
141 strlcat(output, label, size);
142 } else if (strcmp(comp, "severity") == 0 && sevname != NULL) {
144 strlcat(output, sevinfo(sev), size);
145 } else if (strcmp(comp, "text") == 0 && text != MM_NULLTXT) {
147 strlcat(output, text, size);
148 } else if (strcmp(comp, "action") == 0 && act != MM_NULLACT) {
150 strlcat(output, "TO FIX: ", size);
151 strlcat(output, act, size);
152 } else if (strcmp(comp, "tag") == 0 && tag != MM_NULLTAG) {
154 strlcat(output, tag, size);
162 * Returns a component of a colon delimited string. NULL is returned to
163 * indicate that there are no remaining components. This function must be
164 * called until it returns NULL in order for the local state to be cleared.
167 nextcomp(const char *msgverb)
169 static char lmsgverb[MAX_MSGVERB], *state;
172 if (*lmsgverb == '\0') {
173 strlcpy(lmsgverb, msgverb, sizeof(lmsgverb));
174 retval = strtok_r(lmsgverb, ":", &state);
176 retval = strtok_r(NULL, ":", &state);
202 * Returns 1 if the msgverb list is valid, otherwise 0.
205 validmsgverb(const char *msgverb)
211 while ((msgcomp = nextcomp(msgverb)) != NULL) {
213 for (i = 0; validlist[i] != NULL; i++) {
214 if (strcmp(msgcomp, validlist[i]) == 0)