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9boot: truncate long lines instead of producing partial lines from console/plan9.ini

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This commit is contained in:
cinap_lenrek 2012-12-03 16:52:14 +01:00
parent ee251568fb
commit 52b9a06896
1 changed files with 11 additions and 3 deletions
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14
sys/src/boot/pc/sub.c
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@ -105,7 +105,7 @@ readline(void *f, char buf[64])
do{
if(!f)
putc('>');
while(p < buf + 64-1){
for(;;){
if(!f){
putc(*p = getc());
if(*p == '\r')
@ -116,10 +116,18 @@ readline(void *f, char buf[64])
}
}else if(read(f, p, 1) <= 0)
return 0;
if(p == buf && strchr(white, *p))
continue;
if(strchr(crnl, *p))
break;
if(p == buf && strchr(white, *p))
continue; /* whitespace on start of line */
if(p >= buf + 64-1){
if(!f){
putc('\b');
putc(' ');
putc('\b');
}
continue; /* line full do not advance */
}
p++;
}
while(p > buf && strchr(white, p[-1]))