-/*
+/*
* Copyright (c) 1997 Adrian Sun (asun@zoology.washington.edu)
* All Rights Reserved. See COPYRIGHT.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
+#endif /* HAVE_CONFIG_H */
+#include <unistd.h>
#include <stdio.h>
#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
#include <atalk/afp.h>
-#include <syslog.h>
-#include <unistd.h>
-#include "globals.h"
+#include <atalk/dsi.h>
+#include <atalk/util.h>
+#include <atalk/logger.h>
+#include <atalk/globals.h>
+
#include "misc.h"
#define MAXMESGSIZE 199
/* this is only used by afpd children, so it's okay. */
-static char servermesg[MAXMESGSIZE] = "";
+static char servermesg[MAXPATHLEN] = "";
+static char localized_message[MAXPATHLEN] = "";
void setmessage(const char *message)
{
- strncpy(servermesg, message, MAXMESGSIZE);
+ strlcpy(servermesg, message, MAXMESGSIZE);
}
-void readmessage(void)
+void readmessage(AFPObj *obj)
{
-/* Read server message from file defined as SERVERTEXT */
+ /* Read server message from file defined as SERVERTEXT */
#ifdef SERVERTEXT
- FILE *message;
- char * filename;
- int i, rc;
- static int c;
- uid_t euid;
+ FILE *message;
+ char * filename;
+ unsigned int i;
+ int rc;
+ static int c;
+ uid_t euid;
+ uint32_t maxmsgsize;
+
+ maxmsgsize = MIN(MAX(obj->dsi->attn_quantum, MAXMESGSIZE), MAXPATHLEN);
+
+ i=0;
+ /* Construct file name SERVERTEXT/message.[pid] */
+ if ( NULL == (filename=(char*) malloc(sizeof(SERVERTEXT)+15)) ) {
+ LOG(log_error, logtype_afpd, "readmessage: malloc: %s", strerror(errno) );
+ return;
+ }
- i=0;
- // Construct file name SERVERTEXT/message.[pid]
- filename=malloc(sizeof(SERVERTEXT)+15);
- sprintf(filename, "%s/message.%d", SERVERTEXT, getpid());
+ sprintf(filename, "%s/message.%d", SERVERTEXT, getpid());
#ifdef DEBUG
- syslog (LOG_DEBUG, "Reading file %s ", filename);
-#endif
-
- message=fopen(filename, "r");
- if (message==NULL) {
- syslog (LOG_INFO, "Unable to open file %s", filename);
- sprintf(filename, "%s/message", SERVERTEXT);
- message=fopen(filename, "r");
- }
-
- /* if either message.pid or message exists */
- if (message!=NULL) {
- /* added while loop to get characters and put in servermesg */
- while ((( c=fgetc(message)) != EOF) && (i < (MAXMESGSIZE - 1))) {
- if ( c == '\n') c = ' ';
- servermesg[i++] = c;
- }
- servermesg[i] = 0;
-
- /* cleanup */
- fclose(message);
-
- /* Save effective uid and switch to root to delete file. */
- /* Delete will probably fail otherwise, but let's try anyways */
- euid = geteuid();
- if (seteuid(0) < 0) {
- syslog(LOG_ERR, "Could not switch back to root: %m");
- }
-
- rc = unlink(filename);
+ LOG(log_debug9, logtype_afpd, "Reading file %s ", filename);
+#endif
- /* Drop privs again, failing this is very bad */
- if (seteuid(euid) < 0) {
- syslog(LOG_ERR, "Could not switch back to uid %d: %m", euid);
+ message=fopen(filename, "r");
+ if (message==NULL) {
+ /* try without the process id */
+ sprintf(filename, "%s/message", SERVERTEXT);
+ message=fopen(filename, "r");
}
- if (rc < 0) {
- syslog (LOG_ERR, "Error deleting %s: %m", filename);
- }
+ /* if either message.pid or message exists */
+ if (message!=NULL) {
+ /* added while loop to get characters and put in servermesg */
+ while ((( c=fgetc(message)) != EOF) && (i < (maxmsgsize - 1))) {
+ if ( c == '\n') c = ' ';
+ servermesg[i++] = c;
+ }
+ servermesg[i] = 0;
+
+ /* cleanup */
+ fclose(message);
+
+ /* Save effective uid and switch to root to delete file. */
+ /* Delete will probably fail otherwise, but let's try anyways */
+ euid = geteuid();
+ if (seteuid(0) < 0) {
+ LOG(log_error, logtype_afpd, "Could not switch back to root: %s",
+ strerror(errno));
+ }
+
+ if ((rc = unlink(filename)) != 0)
+ LOG(log_error, logtype_afpd, "File '%s' could not be deleted", strerror(errno));
+
+ /* Drop privs again, failing this is very bad */
+ if (seteuid(euid) < 0) {
+ LOG(log_error, logtype_afpd, "Could not switch back to uid %d: %s", euid, strerror(errno));
+ exit(EXITERR_SYS);
+ }
+
+ if (rc < 0) {
+ LOG(log_error, logtype_afpd, "Error deleting %s: %s", filename, strerror(rc));
+ }
#ifdef DEBUG
- else {
- syslog (LOG_INFO, "Deleted %s", filename);
- }
+ else {
+ LOG(log_debug9, logtype_afpd, "Deleted %s", filename);
+ }
- syslog (LOG_INFO, "Set server message to \"%s\"", servermesg);
-#endif
- }
- free(filename);
+ LOG(log_debug9, logtype_afpd, "Set server message to \"%s\"", servermesg);
#endif
+ }
+ free(filename);
+#endif /* SERVERTEXT */
}
-int afp_getsrvrmesg(obj, ibuf, ibuflen, rbuf, rbuflen)
- AFPObj *obj;
- char *ibuf, *rbuf;
- int ibuflen, *rbuflen;
+int afp_getsrvrmesg(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
- char *message;
- u_int16_t type, bitmap;
+ char *message;
+ uint16_t type, bitmap;
+ uint16_t msgsize;
+ size_t outlen = 0;
+ size_t msglen = 0;
+ int utf8 = 0;
+
+ *rbuflen = 0;
+
+ msgsize = MAX(obj->dsi->attn_quantum, MAXMESGSIZE);
- memcpy(&type, ibuf + 2, sizeof(type));
- memcpy(&bitmap, ibuf + 4, sizeof(bitmap));
+ memcpy(&type, ibuf + 2, sizeof(type));
+ memcpy(&bitmap, ibuf + 4, sizeof(bitmap));
- switch (ntohs(type)) {
- case AFPMESG_LOGIN: /* login */
- message = obj->options.loginmesg;
- break;
- case AFPMESG_SERVER: /* server */
message = servermesg;
- break;
- default:
- *rbuflen = 0;
- return AFPERR_BITMAP;
- }
+ switch (ntohs(type)) {
+ case AFPMESG_LOGIN: /* login */
+ /* at least TIGER loses server messages
+ * if it receives a server msg attention before
+ * it has asked the login msg...
+ * Workaround: concatenate the two if any, ugly.
+ */
+ if (*message && *obj->options.loginmesg) {
+ strlcat(message, " - ", MAXMESGSIZE);
+ }
+ strlcat(message, obj->options.loginmesg, MAXMESGSIZE);
+ break;
+ case AFPMESG_SERVER: /* server */
+ break;
+ default:
+ return AFPERR_BITMAP;
+ }
- if(strlen(message)==0)
+ /* output format:
+ * message type: 2 bytes
+ * bitmap: 2 bytes
+ * message length: 1 byte ( 2 bytes for utf8)
+ * message: up to 199 bytes (dsi attn_quantum for utf8)
+ */
+ memcpy(rbuf, &type, sizeof(type));
+ rbuf += sizeof(type);
+ *rbuflen += sizeof(type);
+ memcpy(rbuf, &bitmap, sizeof(bitmap));
+ rbuf += sizeof(bitmap);
+ *rbuflen += sizeof(bitmap);
+
+ utf8 = ntohs(bitmap) & 2;
+ msglen = strlen(message);
+ if (msglen > msgsize)
+ msglen = msgsize;
+
+ if (msglen) {
+ if ( (size_t)-1 == (outlen = convert_string(obj->options.unixcharset, utf8?CH_UTF8_MAC:obj->options.maccharset,
+ message, msglen, localized_message, msgsize)) )
+ {
+ memcpy(rbuf+((utf8)?2:1), message, msglen); /*FIXME*/
+ outlen = msglen;
+ }
+ else
+ {
+ memcpy(rbuf+((utf8)?2:1), localized_message, outlen);
+ }
+ }
+
+ if ( utf8 ) {
+ /* UTF8 message, 2 byte length */
+ msgsize = htons(outlen);
+ memcpy(rbuf, &msgsize, sizeof(msgsize));
+ *rbuflen += sizeof(msgsize);
+ }
+ else {
+ *rbuf = outlen;
+ *rbuflen += 1;
+ }
+ *rbuflen += outlen;
+ *message = 0;
return AFP_OK;
-
- /* output format:
- * message type: 2 bytes
- * bitmap: 2 bytes
- * message length: 1 byte
- * message: up to 199 bytes
- */
- memcpy(rbuf, &type, sizeof(type));
- rbuf += sizeof(type);
- memcpy(rbuf, &bitmap, sizeof(bitmap));
- rbuf += sizeof(bitmap);
- *rbuflen = strlen(message);
- if (*rbuflen > MAXMESGSIZE)
- *rbuflen = MAXMESGSIZE;
- *rbuf++ = *rbuflen;
- memcpy(rbuf, message, *rbuflen);
-
- *rbuflen += 5;
-
- return AFP_OK;
}
projects / netatalk.git / blobdiff