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Rewrite /lib/font/bit to $PLAN9/font when open fails.

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This commit is contained in:
rsc 2003-10-13 17:16:15 +00:00
parent a3c5df578f
commit e6f4b2e311
1 changed files with 22 additions and 1 deletions
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23
src/libdraw/openfont.c
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@ -9,9 +9,27 @@ openfont(Display *d, char *name)
{
Font *fnt;
int fd, i, n;
char *buf;
char *buf, *nambuf, *root;
nambuf = 0;
fd = open(name, OREAD);
if(fd < 0 && strncmp(name, "/lib/font/bit/", 14) == 0){
root = getenv("PLAN9");
if(root == nil)
return 0;
nambuf = malloc(strlen(root)+5+strlen(name+13)+1);
if(nambuf == nil)
return 0;
strcpy(nambuf, root);
strcat(nambuf, "/font");
strcat(nambuf, name+13);
if((fd = open(nambuf, OREAD)) < 0){
free(nambuf);
return 0;
}
name = nambuf;
}
if(fd < 0)
return 0;
@ -19,6 +37,7 @@ openfont(Display *d, char *name)
buf = malloc(n+1);
if(buf == 0){
close(fd);
free(nambuf);
return 0;
}
buf[n] = 0;
@ -26,9 +45,11 @@ openfont(Display *d, char *name)
close(fd);
if(i != n){
free(buf);
free(nambuf);
return 0;
}
fnt = buildfont(d, buf, name);
free(buf);
free(nambuf);
return fnt;
}