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- #include <u.h>
- #include <libc.h>
- #include <venti.h>
- int
- vtputstring(Packet *p, char *s)
- {
- uchar buf[2];
- int n;
- if(s == nil){
- werrstr("null string in packet");
- return -1;
- }
- n = strlen(s);
- if(n > VtMaxStringSize){
- werrstr("string too long in packet");
- return -1;
- }
- buf[0] = n>>8;
- buf[1] = n;
- packetappend(p, buf, 2);
- packetappend(p, (uchar*)s, n);
- return 0;
- }
- int
- vtgetstring(Packet *p, char **ps)
- {
- uchar buf[2];
- int n;
- char *s;
- if(packetconsume(p, buf, 2) < 0)
- return -1;
- n = (buf[0]<<8) + buf[1];
- if(n > VtMaxStringSize) {
- werrstr("string too long in packet");
- return -1;
- }
- s = vtmalloc(n+1);
- if(packetconsume(p, (uchar*)s, n) < 0){
- vtfree(s);
- return -1;
- }
- s[n] = 0;
- *ps = s;
- return 0;
- }
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