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path: root/pppd/plugins/pppoatm/text2atm.c
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Diffstat (limited to 'pppd/plugins/pppoatm/text2atm.c')
-rw-r--r--pppd/plugins/pppoatm/text2atm.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/pppd/plugins/pppoatm/text2atm.c b/pppd/plugins/pppoatm/text2atm.c
deleted file mode 100644
index c283b52..0000000
--- a/pppd/plugins/pppoatm/text2atm.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/* text2atm.c - Converts textual representation of ATM address to binary
- encoding */
-
-/* Written 1995-2000 by Werner Almesberger, EPFL-LRC/ICA */
-
-#if HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <limits.h>
-
-#include "atm.h"
-#include "atmsap.h"
-#include "atmres.h"
-
-
-static int try_pvc(const char *text,struct sockaddr_atmpvc *addr,int flags)
-{
- int part[3];
- int i;
-
- part[0] = part[1] = part[2] = 0;
- i = 0;
- while (1) {
- if (!*text) return FATAL; /* empty or ends with a dot */
- if (i == 3) return TRY_OTHER; /* too long */
- if (isdigit(*text)) {
- if (*text == '0' && isdigit(text[1])) return TRY_OTHER;
- /* no leading zeroes */
- do {
- if (part[i] > INT_MAX/10) return TRY_OTHER;/* number too big */
- part[i] = part[i]*10+*text++-'0';
- }
- while (isdigit(*text));
- i++;
- if (!*text) break;
- if (*text++ != '.') return TRY_OTHER; /* non-PVC character */
- continue;
- }
- if (*text == '*') {
- if (!(flags & T2A_WILDCARD)) return FATAL; /* not allowed */
- part[i++] = ATM_ITF_ANY; /* all *_ANY have the same value */
- }
- else {
- if (*text != '?') return TRY_OTHER; /* invalid character */
- if (!(flags & T2A_UNSPEC)) return FATAL; /* not allowed */
- part[i++] = ATM_VPI_UNSPEC; /* all *_UNSPEC have the same
- value */
- }
- if (!*++text) break;
- if (*text++ != '.') return FATAL; /* dot required */
- }
- if (i < 2) return TRY_OTHER; /* no dots */
- if (i == 2) {
- part[2] = part[1];
- part[1] = part[0];
- part[0] = 0; /* default interface */
- }
- if (part[0] > SHRT_MAX || part[2] > ATM_MAX_VCI)
- return TRY_OTHER; /* too big */
- if (part[1] > (flags & T2A_NNI ? ATM_MAX_VPI_NNI : ATM_MAX_VPI))
- return TRY_OTHER; /* too big */
- if (part[0] == ATM_VPI_UNSPEC) return FATAL; /* bad */
- addr->sap_family = AF_ATMPVC;
- addr->sap_addr.itf = part[0];
- addr->sap_addr.vpi = part[1];
- addr->sap_addr.vci = part[2];
- return 0;
-}
-
-
-static int do_try_nsap(const char *text,struct sockaddr_atmsvc *addr,int flags)
-{
- const char *walk;
- int count,pos,dot;
- int offset,len;
- char value;
-
- count = dot = 0;
- for (walk = text; *walk; walk++)
- if (isdigit(*walk)) {
- if (count++ == 15) break;
- dot = 1;
- }
- else if (*text != '.') break;
- else if (!dot) return FATAL; /* two dots in a row */
- else dot = 0;
- if (*walk != ':') {
- pos = 0;
- offset = 0;
- }
- else {
- if (!dot || *text == '0') return FATAL;
- addr->sas_addr.prv[0] = ATM_AFI_E164;
- addr->sas_addr.prv[1] = 0;
- memset(addr->sas_addr.prv+1,0,8);
- for (pos = 18-count-1; *text; text++) {
- if (*text == '.') continue;
- if (*text == ':') break;
- else {
- if (pos & 1) addr->sas_addr.prv[pos >> 1] |= *text-'0';
- else addr->sas_addr.prv[pos >> 1] = (*text-'0') << 4;
- pos++;
- }
- }
- addr->sas_addr.prv[8] |= 0xf;
- text++;
- pos++;
- offset = 72;
- }
- for (dot = 0; *text; text++)
- if (isxdigit(*text)) {
- if (pos == ATM_ESA_LEN*2) return TRY_OTHER; /* too long */
- value = isdigit(*text) ? *text-'0' : (islower(*text) ?
- toupper(*text) : *text)-'A'+10;
- if (pos & 1) addr->sas_addr.prv[pos >> 1] |= value;
- else addr->sas_addr.prv[pos >> 1] = value << 4;
- pos++;
- dot = 1;
- }
- else
- if (*text == '/' && (flags & T2A_WILDCARD)) break;
- else if (*text != '.') return TRY_OTHER;
- else {
- if (!dot) return FATAL; /* two dots in a row */
- dot = 0;
- }
- if (!dot) return FATAL;
- if (pos > 1 && !*addr->sas_addr.prv)
- return TRY_OTHER; /* no leading zeroes */
- if (!*text)
- return pos != ATM_ESA_LEN*2 ? TRY_OTHER : ATM_ESA_LEN*2;
- /* handle bad length */
- len = 0;
- while (*++text) {
- if (!isdigit(*text)) return -1; /* non-digit in length */
- if (len >= pos*4) return -1; /* too long */
- len = len*10+*text-'0';
- }
- if (len > 7 && addr->sas_addr.prv[0] != ATM_AFI_E164) offset = 72;
- if (len < offset) return FATAL;
- return len > pos*4 ? TRY_OTHER : len;
-}
-
-
-static int try_nsap(const char *text,struct sockaddr_atmsvc *addr,int flags)
-{
- int result;
-
- result = do_try_nsap(text,addr,flags);
- if (result < 0) return result;
- addr->sas_family = AF_ATMSVC;
- *addr->sas_addr.pub = 0;
- return result;
-}
-
-
-static int try_e164(const char *text,struct sockaddr_atmsvc *addr,int flags)
-{
- int i,dot,result;
-
- if (*text == ':' || *text == '+') text++;
- for (i = dot = 0; *text; text++)
- if (isdigit(*text)) {
- if (i == ATM_E164_LEN) return TRY_OTHER; /* too long */
- addr->sas_addr.pub[i++] = *text;
- dot = 1;
- }
- else if (*text != '.') break;
- else {
- if (!dot) return TRY_OTHER; /* two dots in a row */
- dot = 0;
- }
- if (!dot) return TRY_OTHER;
- addr->sas_addr.pub[i] = 0;
- *addr->sas_addr.prv = 0;
- result = 0;
- if (*text) {
- if (*text++ != '+') return TRY_OTHER;
- else {
- result = do_try_nsap(text,addr,flags);
- if (result < 0) return FATAL;
- }
- }
- addr->sas_family = AF_ATMSVC;
- return result;
-}
-
-
-static int search(FILE *file,const char *text,struct sockaddr *addr,int length,
- int flags)
-{
- char line[MAX_ATM_NAME_LEN+1];
- const char *here;
- int result;
-
- while (fgets(line,MAX_ATM_NAME_LEN,file)) {
- if (!strtok(line,"\t\n ")) continue;
- while ((here = strtok(NULL,"\t\n ")))
- if (!strcasecmp(here,text)) {
- here = strtok(line,"\t\n ");
- result = text2atm(here,addr,length,flags);
- if (result >= 0) return result;
- }
- }
- return TRY_OTHER;
-}
-
-
-static int try_name(const char *text,struct sockaddr *addr,int length,
- int flags)
-{
- FILE *file;
- int result;
-
- if (!(file = fopen(HOSTS_ATM,"r"))) return TRY_OTHER;
- result = search(file,text,addr,length,flags);
- (void) fclose(file);
- return result;
-}
-
-
-int text2atm(const char *text,struct sockaddr *addr,int length,int flags)
-{
- int result;
-
- if (!*text) return -1;
- if (!(flags & (T2A_PVC | T2A_SVC))) flags |= T2A_PVC | T2A_SVC;
- if (length < sizeof(struct sockaddr_atmpvc)) return -1;
- if (flags & T2A_PVC) {
- result = try_pvc(text,(struct sockaddr_atmpvc *) addr,flags);
- if (result != TRY_OTHER) return result;
- }
- if ((flags & T2A_SVC) && length >= sizeof(struct sockaddr_atmsvc)) {
- result = try_nsap(text,(struct sockaddr_atmsvc *) addr,flags);
- if (result != TRY_OTHER) return result;
- result = try_e164(text,(struct sockaddr_atmsvc *) addr,flags);
- if (result != TRY_OTHER) return result;
- }
- if (!(flags & T2A_NAME)) return -1;
- result = try_name(text,addr,length,flags & ~T2A_NAME);
- if (result == TRY_OTHER && !(flags & T2A_LOCAL))
- result = ans_byname(text,(struct sockaddr_atmsvc *) addr,length,flags);
- if (result != TRY_OTHER) return result;
- return -1;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 19:31:37 +0000