1 5993a8f2 2003-11-23 devnull #include <u.h>
  2 5993a8f2 2003-11-23 devnull #include <libc.h>
  3 5993a8f2 2003-11-23 devnull #include <bio.h>
  4 5993a8f2 2003-11-23 devnull #include "diff.h"
  5 5993a8f2 2003-11-23 devnull 
  6 5993a8f2 2003-11-23 devnull static int
  7 478ee963 2003-11-23 devnull itemcmp(const void *v1, const void *v2)
  8 5993a8f2 2003-11-23 devnull {
  9 478ee963 2003-11-23 devnull 	char *const*d1 = v1, *const*d2 = v2;
 10 5993a8f2 2003-11-23 devnull 
 11 5993a8f2 2003-11-23 devnull 	return strcmp(*d1, *d2);
 12 5993a8f2 2003-11-23 devnull }
 13 5993a8f2 2003-11-23 devnull 
 14 5993a8f2 2003-11-23 devnull static char **
 15 5993a8f2 2003-11-23 devnull scandir(char *name)
 16 5993a8f2 2003-11-23 devnull {
 17 5993a8f2 2003-11-23 devnull 	char **cp;
 18 5993a8f2 2003-11-23 devnull 	Dir *db;
 19 5993a8f2 2003-11-23 devnull 	int nitems;
 20 5993a8f2 2003-11-23 devnull 	int fd, n;
 21 5993a8f2 2003-11-23 devnull 
 22 eb5d2a54 2007-11-05 rsc 	if ((fd = open(name, OREAD)) < 0){
 23 eb5d2a54 2007-11-05 rsc 		panic(mflag ? 0 : 2, "can't open %s\n", name);
 24 eb5d2a54 2007-11-05 rsc 		return nil;
 25 eb5d2a54 2007-11-05 rsc 	}
 26 5993a8f2 2003-11-23 devnull 	cp = 0;
 27 5993a8f2 2003-11-23 devnull 	nitems = 0;
 28 5993a8f2 2003-11-23 devnull 	if((n = dirreadall(fd, &db)) > 0){
 29 5993a8f2 2003-11-23 devnull 		while (n--) {
 30 5993a8f2 2003-11-23 devnull 			cp = REALLOC(cp, char *, (nitems+1));
 31 5993a8f2 2003-11-23 devnull 			cp[nitems] = MALLOC(char, strlen((db+n)->name)+1);
 32 5993a8f2 2003-11-23 devnull 			strcpy(cp[nitems], (db+n)->name);
 33 5993a8f2 2003-11-23 devnull 			nitems++;
 34 5993a8f2 2003-11-23 devnull 		}
 35 5993a8f2 2003-11-23 devnull 		free(db);
 36 5993a8f2 2003-11-23 devnull 	}
 37 5993a8f2 2003-11-23 devnull 	cp = REALLOC(cp, char*, (nitems+1));
 38 5993a8f2 2003-11-23 devnull 	cp[nitems] = 0;
 39 5993a8f2 2003-11-23 devnull 	close(fd);
 40 5993a8f2 2003-11-23 devnull 	qsort((char *)cp, nitems, sizeof(char*), itemcmp);
 41 5993a8f2 2003-11-23 devnull 	return cp;
 42 5993a8f2 2003-11-23 devnull }
 43 5993a8f2 2003-11-23 devnull 
 44 5993a8f2 2003-11-23 devnull static int
 45 5993a8f2 2003-11-23 devnull isdotordotdot(char *p)
 46 5993a8f2 2003-11-23 devnull {
 47 5993a8f2 2003-11-23 devnull 	if (*p == '.') {
 48 5993a8f2 2003-11-23 devnull 		if (!p[1])
 49 5993a8f2 2003-11-23 devnull 			return 1;
 50 5993a8f2 2003-11-23 devnull 		if (p[1] == '.' && !p[2])
 51 5993a8f2 2003-11-23 devnull 			return 1;
 52 5993a8f2 2003-11-23 devnull 	}
 53 5993a8f2 2003-11-23 devnull 	return 0;
 54 5993a8f2 2003-11-23 devnull }
 55 5993a8f2 2003-11-23 devnull 
 56 5993a8f2 2003-11-23 devnull void
 57 5993a8f2 2003-11-23 devnull diffdir(char *f, char *t, int level)
 58 5993a8f2 2003-11-23 devnull {
 59 5993a8f2 2003-11-23 devnull 	char  **df, **dt, **dirf, **dirt;
 60 5993a8f2 2003-11-23 devnull 	char *from, *to;
 61 5993a8f2 2003-11-23 devnull 	int res;
 62 5993a8f2 2003-11-23 devnull 	char fb[MAXPATHLEN+1], tb[MAXPATHLEN+1];
 63 5993a8f2 2003-11-23 devnull 
 64 5993a8f2 2003-11-23 devnull 	df = scandir(f);
 65 5993a8f2 2003-11-23 devnull 	dt = scandir(t);
 66 5993a8f2 2003-11-23 devnull 	dirf = df;
 67 5993a8f2 2003-11-23 devnull 	dirt = dt;
 68 eb5d2a54 2007-11-05 rsc 	if(df == nil || dt == nil)
 69 eb5d2a54 2007-11-05 rsc 		goto Out;
 70 5993a8f2 2003-11-23 devnull 	while (*df || *dt) {
 71 5993a8f2 2003-11-23 devnull 		from = *df;
 72 5993a8f2 2003-11-23 devnull 		to = *dt;
 73 5993a8f2 2003-11-23 devnull 		if (from && isdotordotdot(from)) {
 74 5993a8f2 2003-11-23 devnull 			df++;
 75 5993a8f2 2003-11-23 devnull 			continue;
 76 5993a8f2 2003-11-23 devnull 		}
 77 5993a8f2 2003-11-23 devnull 		if (to && isdotordotdot(to)) {
 78 5993a8f2 2003-11-23 devnull 			dt++;
 79 5993a8f2 2003-11-23 devnull 			continue;
 80 5993a8f2 2003-11-23 devnull 		}
 81 5993a8f2 2003-11-23 devnull 		if (!from)
 82 5993a8f2 2003-11-23 devnull 			res = 1;
 83 5993a8f2 2003-11-23 devnull 		else if (!to)
 84 5993a8f2 2003-11-23 devnull 			res = -1;
 85 5993a8f2 2003-11-23 devnull 		else
 86 5993a8f2 2003-11-23 devnull 			res = strcmp(from, to);
 87 5993a8f2 2003-11-23 devnull 		if (res < 0) {
 88 5993a8f2 2003-11-23 devnull 			if (mode == 0 || mode == 'n')
 89 5993a8f2 2003-11-23 devnull 				Bprint(&stdout, "Only in %s: %s\n", f, from);
 90 5993a8f2 2003-11-23 devnull 			df++;
 91 5993a8f2 2003-11-23 devnull 			continue;
 92 5993a8f2 2003-11-23 devnull 		}
 93 5993a8f2 2003-11-23 devnull 		if (res > 0) {
 94 5993a8f2 2003-11-23 devnull 			if (mode == 0 || mode == 'n')
 95 5993a8f2 2003-11-23 devnull 				Bprint(&stdout, "Only in %s: %s\n", t, to);
 96 5993a8f2 2003-11-23 devnull 			dt++;
 97 5993a8f2 2003-11-23 devnull 			continue;
 98 5993a8f2 2003-11-23 devnull 		}
 99 5993a8f2 2003-11-23 devnull 		if (mkpathname(fb, f, from))
100 5993a8f2 2003-11-23 devnull 			continue;
101 5993a8f2 2003-11-23 devnull 		if (mkpathname(tb, t, to))
102 5993a8f2 2003-11-23 devnull 			continue;
103 5993a8f2 2003-11-23 devnull 		diff(fb, tb, level+1);
104 5993a8f2 2003-11-23 devnull 		df++; dt++;
105 5993a8f2 2003-11-23 devnull 	}
106 eb5d2a54 2007-11-05 rsc Out:
107 eb5d2a54 2007-11-05 rsc 	for (df = dirf; df && *df; df++)
108 5993a8f2 2003-11-23 devnull 		FREE(*df);
109 eb5d2a54 2007-11-05 rsc 	for (dt = dirt; dt && *dt; dt++)
110 5993a8f2 2003-11-23 devnull 		FREE(*dt);
111 5993a8f2 2003-11-23 devnull 	FREE(dirf);
112 5993a8f2 2003-11-23 devnull 	FREE(dirt);
113 5993a8f2 2003-11-23 devnull }