2 * Copyright (c) 1997 Adrian Sun (asun@zoology.washington.edu)
3 * All Rights Reserved. See COPYRIGHT.
8 #endif /* HAVE_CONFIG_H */
15 #include <atalk/afp.h>
16 #include <atalk/dsi.h>
17 #include <atalk/util.h>
18 #include <atalk/logger.h>
19 #include <atalk/globals.h>
24 #define MAXMESGSIZE 199
26 /* this is only used by afpd children, so it's okay. */
27 static char servermesg[MAXPATHLEN] = "";
28 static char localized_message[MAXPATHLEN] = "";
30 void setmessage(const char *message)
32 strlcpy(servermesg, message, MAXMESGSIZE);
35 void readmessage(AFPObj *obj)
37 /* Read server message from file defined as SERVERTEXT */
47 maxmsgsize = (obj->proto == AFPPROTO_DSI)?MIN(MAX(((DSI*)obj->handle)->attn_quantum, MAXMESGSIZE),MAXPATHLEN):MAXMESGSIZE;
50 /* Construct file name SERVERTEXT/message.[pid] */
51 if ( NULL == (filename=(char*) malloc(sizeof(SERVERTEXT)+15)) ) {
52 LOG(log_error, logtype_afpd, "readmessage: malloc: %s", strerror(errno) );
56 sprintf(filename, "%s/message.%d", SERVERTEXT, getpid());
59 LOG(log_debug9, logtype_afpd, "Reading file %s ", filename);
62 message=fopen(filename, "r");
64 /* try without the process id */
65 sprintf(filename, "%s/message", SERVERTEXT);
66 message=fopen(filename, "r");
69 /* if either message.pid or message exists */
71 /* added while loop to get characters and put in servermesg */
72 while ((( c=fgetc(message)) != EOF) && (i < (maxmsgsize - 1))) {
73 if ( c == '\n') c = ' ';
81 /* Save effective uid and switch to root to delete file. */
82 /* Delete will probably fail otherwise, but let's try anyways */
85 LOG(log_error, logtype_afpd, "Could not switch back to root: %s",
89 if ((rc = unlink(filename)) != 0)
90 LOG(log_error, logtype_afpd, "File '%s' could not be deleted", strerror(errno));
92 /* Drop privs again, failing this is very bad */
93 if (seteuid(euid) < 0) {
94 LOG(log_error, logtype_afpd, "Could not switch back to uid %d: %s", euid, strerror(errno));
99 LOG(log_error, logtype_afpd, "Error deleting %s: %s", filename, strerror(rc));
103 LOG(log_debug9, logtype_afpd, "Deleted %s", filename);
106 LOG(log_debug9, logtype_afpd, "Set server message to \"%s\"", servermesg);
110 #endif /* SERVERTEXT */
113 int afp_getsrvrmesg(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
116 uint16_t type, bitmap;
124 msgsize = (obj->proto == AFPPROTO_DSI)?MAX(((DSI*)obj->handle)->attn_quantum, MAXMESGSIZE):MAXMESGSIZE;
126 memcpy(&type, ibuf + 2, sizeof(type));
127 memcpy(&bitmap, ibuf + 4, sizeof(bitmap));
129 message = servermesg;
130 switch (ntohs(type)) {
131 case AFPMESG_LOGIN: /* login */
132 /* at least TIGER loses server messages
133 * if it receives a server msg attention before
134 * it has asked the login msg...
135 * Workaround: concatenate the two if any, ugly.
137 if (*message && *obj->options.loginmesg) {
138 strlcat(message, " - ", MAXMESGSIZE);
140 strlcat(message, obj->options.loginmesg, MAXMESGSIZE);
142 case AFPMESG_SERVER: /* server */
145 return AFPERR_BITMAP;
149 * message type: 2 bytes
151 * message length: 1 byte ( 2 bytes for utf8)
152 * message: up to 199 bytes (dsi attn_quantum for utf8)
154 memcpy(rbuf, &type, sizeof(type));
155 rbuf += sizeof(type);
156 *rbuflen += sizeof(type);
157 memcpy(rbuf, &bitmap, sizeof(bitmap));
158 rbuf += sizeof(bitmap);
159 *rbuflen += sizeof(bitmap);
161 utf8 = ntohs(bitmap) & 2;
162 msglen = strlen(message);
163 if (msglen > msgsize)
167 if ( (size_t)-1 == (outlen = convert_string(obj->options.unixcharset, utf8?CH_UTF8_MAC:obj->options.maccharset,
168 message, msglen, localized_message, msgsize)) )
170 memcpy(rbuf+((utf8)?2:1), message, msglen); /*FIXME*/
175 memcpy(rbuf+((utf8)?2:1), localized_message, outlen);
180 /* UTF8 message, 2 byte length */
181 msgsize = htons(outlen);
182 memcpy(rbuf, &msgsize, sizeof(msgsize));
183 *rbuflen += sizeof(msgsize);