Import sources from 2011-03-30 iso image

1 files changed, 92 insertions, 0 deletions

diff --git a/sys/src/cmd/auth/uniq.c b/sys/src/cmd/auth/uniq.c
new file mode 100755
index 000000000..a3fa53cda
--- /dev/null
+++ b/sys/src/cmd/auth/uniq.c
@@ -0,0 +1,92 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+
+typedef struct Who Who;
+struct Who
+{
+	Who *next;
+	char *line;
+	char *name;
+};
+
+int cmp(void *arg1, void *arg2)
+{
+	Who **a = arg1, **b = arg2;
+
+	return strcmp((*a)->name, (*b)->name);
+}
+
+void
+main(int argc, char **argv)
+{
+	int changed, i, n;
+	Biobuf *b;
+	char *p, *name;
+	Who *first, *last, *w, *nw, **l;
+
+	if(argc != 2){
+		fprint(2, "usage: auth/uniq file\n");
+		exits(0);
+	}
+
+	last = first = 0;
+	b = Bopen(argv[1], OREAD);
+	if(b == 0)
+		exits(0);
+
+	n = 0;
+	changed = 0;
+	while(p = Brdline(b, '\n')){
+		p[Blinelen(b)-1] = 0;
+		name = p;
+		while(*p && *p != '|')
+			p++;
+		if(*p)
+			*p++ = 0;
+
+		for(nw = first; nw; nw = nw->next){
+			if(strcmp(nw->name, name) == 0){
+				free(nw->line);
+				nw->line = strdup(p);
+				changed = 1;
+				break;
+			}
+		}
+		if(nw)
+			continue;
+
+		w = malloc(sizeof(Who));
+		if(w == 0){
+			fprint(2, "auth/uniq: out of memory\n");
+			exits(0);
+		}
+		memset(w, 0, sizeof(Who));
+		w->name = strdup(name);
+		w->line = strdup(p);
+		if(first == 0)
+			first = w;
+		else
+			last->next = w;
+		last = w;
+		n++;
+	}
+	Bterm(b);
+
+	l = malloc(n*sizeof(Who*));
+	for(i = 0, nw = first; nw; nw = nw->next, i++)
+		l[i] = nw;
+	qsort(l, n, sizeof(Who*), cmp);
+
+	if(!changed)
+		exits(0);
+
+	b = Bopen(argv[1], OWRITE);
+	if(b == 0){
+		fprint(2, "auth/uniq: can't open %s\n", argv[1]);
+		exits(0);
+	}
+	for(i = 0; i < n; i++)
+		Bprint(b, "%s|%s\n", l[i]->name, l[i]->line);
+	Bterm(b);
+}