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The SSH_PUBLIC_KEY line in OpenNebula's context can span multiple lines

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This commit is contained in:
reykfloeter 2019-06-04 15:15:24 +02:00
parent 0509d8d619
commit 99f8b2d2b0
1 changed files with 52 additions and 5 deletions
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51
agent/opennebula.c
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@ -34,6 +34,7 @@ opennebula(struct system_config *sc)
FILE *fp;
const char *delim = "\\\\\0", *errstr;
char *line = NULL, *k, *v, *p, q;
char *value = NULL, *next = NULL, *last;
char *hname = NULL;
size_t len, lineno = 0, i;
int ret = -1;
@ -72,19 +73,54 @@ opennebula(struct system_config *sc)
/* value is quoted */
q = *v;
if (strspn(v, "\"'") == 0 || (p = strrchr(v, q)) == v) {
if (strspn(v, "\"'") == 0) {
free(line);
continue;
}
*v++ = '\0';
/* quoted value can be continued on multiple lines */
if ((value = strdup("")) == NULL) {
log_debug("%s: strdup", __func__);
goto done;
}
next = v;
do {
if ((p = strrchr(next, q)) != NULL)
*p++ = '\0';
if (*next) {
last = value;
if (asprintf(&value, "%s%s\n",
last, next) == -1) {
log_debug("%s: asprintf", __func__);
if (next != v)
free(next);
goto done;
}
free(last);
}
if (next != v)
free(next);
} while (p == NULL &&
(next = fparseln(fp, &len, &lineno,
delim, FPARSELN_UNESCALL)) != NULL);
next = NULL;
v = value;
/* strip trailing newline */
if ((p = strrchr(v, '\n')) != NULL)
*p = '\0';
/* continue if value is empty */
if (*v == '\0') {
free(line);
free(value);
value = NULL;
continue;
}
/* print key/value unless it is a multi-line value */
if (strcasecmp("SSH_PUBLIC_KEY", k) != 0)
log_debug("%s: %s = %s", __func__, k, v);
if (strcasecmp("NETWORK", k) == 0) {
@ -178,11 +214,21 @@ opennebula(struct system_config *sc)
if ((hname = strdup(v)) == NULL)
log_warnx("failed to set hostname");
} else if (strcasecmp("SSH_PUBLIC_KEY", k) == 0) {
if (agent_addpubkey(sc, v, NULL) != 0)
do {
p = v + strcspn(v, "\n");
*p++ = '\0';
if (*v)
log_debug("%s: %s = %s",
__func__, k, v);
if (*v && agent_addpubkey(sc, v, NULL) != 0)
log_warnx("failed to set ssh pubkey");
v = p + strspn(p, "\n");
} while (*v != '\0');
}
free(line);
free(value);
value = NULL;
}
fclose(fp);
@ -216,5 +262,6 @@ opennebula(struct system_config *sc)
if (fp != NULL)
fclose(fp);
free(line);
free(value);
return (ret);
}