3 * cat startpoints.list | summer >data.list
4 * summer startpoints... >data.list
5 * prints md5sum of data-list to stderr
11 #include <sys/types.h>
22 #include "nettle/md5-compat.h"
28 static int quiet=0, hidectime=0, filenamefieldsep=' ';
31 static void fn_escaped(FILE *f, const char *fn) {
34 if (c>=33 && c<=126 && c!='\\') putc(c,f);
35 else fprintf(f,"\\x%02x",(int)(unsigned char)c);
39 static void add_pr(int *pr, int printf_ret) {
40 if (printf_ret == EOF) return;
44 static void vproblemx(const char *path, int padto, int per,
45 const char *fmt, va_list al) {
48 if (errfile==stderr) fputs("summer: error: ",stderr);
49 else add_pr(&pr, fprintf(errfile,"\\["));
51 add_pr(&pr, vfprintf(errfile,fmt,al));
52 if (per) add_pr(&pr, fprintf(errfile,": %s",strerror(e)));
54 if (errfile==stderr) {
56 fn_escaped(stderr,path);
61 add_pr(&pr, printf("]"));
67 static void problem_e(const char *path, int padto, const char *fmt, ...) {
70 vproblemx(path,padto,1,fmt,al);
74 static void problem(const char *path, int padto, const char *fmt, ...) {
77 vproblemx(path,padto,0,fmt,al);
81 static void csum_file(const char *path) {
85 unsigned char digest[16];
90 if (!f) { problem_e(path,sizeof(digest)*2,"open"); return; }
94 r= fread(db,1,sizeof(db),f);
96 problem_e(path,sizeof(digest)*2,"read");
99 if (!r) { assert(feof(f)); break; }
102 MD5Final(digest,&mc);
103 if (fclose(f)) { problem_e(path,sizeof(digest)*2,"close"); return; }
105 for (i=0; i<sizeof(digest); i++)
106 printf("%02x", digest[i]);
109 static void csum_dev(int cb, const struct stat *stab) {
110 printf("%c 0x%08lx %3lu %3lu %3lu %3lu ", cb,
111 (unsigned long)stab->st_rdev,
112 ((unsigned long)stab->st_rdev & 0x0ff000000U) >> 24,
113 ((unsigned long)stab->st_rdev & 0x000ff0000U) >> 16,
114 ((unsigned long)stab->st_rdev & 0x00000ff00U) >> 8,
115 ((unsigned long)stab->st_rdev & 0x0000000ffU) >> 0);
118 static void csum_str(const char *s) {
119 printf("%-*s", CSUMXL, s);
124 static int item(const char *path, const struct stat *stab,
125 int flag, struct FTW *ftws) {
126 char linktarg[MAXFN+1];
132 if (S_ISREG(stab->st_mode)) csum_file(path);
133 else if (S_ISDIR(stab->st_mode)) csum_str("dir");
134 else if (S_ISCHR(stab->st_mode)) csum_dev('c',stab);
135 else if (S_ISBLK(stab->st_mode)) csum_dev('b',stab);
136 else if (S_ISFIFO(stab->st_mode)) csum_str("pipe");
137 else if (S_ISLNK(stab->st_mode)) csum_str("link");
138 else if (S_ISSOCK(stab->st_mode)) csum_str("sock");
139 else problem(path,CSUMXL,"badobj: 0x%lx", (unsigned long)stab->st_mode);
144 problem_e(path,CSUMXL,"inaccessible");
148 problem(path,CSUMXL,"ftw flag 0x%x: %s",flag);
151 if (S_ISLNK(stab->st_mode)) {
154 r= readlink(path, linktarg, sizeof(linktarg)-1);
155 if (r==sizeof(linktarg)) { problem(path,-1,"readlink too big"); r=-1; }
156 else if (r<0) { problem_e(path,-1,"readlink"); }
157 else assert(r<sizeof(linktarg));
159 if (r<0) strcpy(linktarg,"\\?");
163 printf(" %10lu %4d %4o %10ld %10ld %10lu %10lu",
164 (unsigned long)stab->st_size,
166 (unsigned)stab->st_mode & 07777U,
167 (unsigned long)stab->st_uid,
168 (unsigned long)stab->st_gid,
169 (unsigned long)stab->st_atime,
170 (unsigned long)stab->st_mtime);
173 (unsigned long)stab->st_ctime);
174 putchar(filenamefieldsep);
175 fn_escaped(stdout, path);
177 if (S_ISLNK(stab->st_mode)) {
179 fn_escaped(stdout, linktarg);
183 if (ferror(stdout)) { perror("summer: stdout"); exit(12); }
187 static void process(const char *startpoint) {
190 fprintf(stderr,"summer: processing: %s\n",startpoint);
191 r= nftw(startpoint, item, MAXDEPTH, FTW_MOUNT|FTW_PHYS);
192 if (r) { fprintf(stderr, "summer: nftw failed: %s: %s\n",
193 strerror(errno), startpoint); exit(4); }
196 static void from_stdin(void) {
202 fprintf(stderr, "summer: processing stdin lines as startpoints\n");
204 s= fgets(buf,sizeof(buf),stdin);
205 if (ferror(stdin)) { perror("summer: stdin"); exit(12); }
206 if (!s) { if (feof(stdin)) return; else abort(); }
209 if (buf[l-1]!='\n') { fprintf(stderr,"summer: line too long\n"); exit(8); }
215 int main(int argc, const char *const *argv) {
221 if ((arg=argv[1]) && *arg++=='-') {
226 "summer: usage: summer startpoint... >data.list\n"
227 " cat startpoints.list | summer >data.list\n");
233 filenamefieldsep= '\t';
242 fprintf(stderr,"summer: bad usage, try -h\n");
253 fprintf(stderr, "summer: processing command line args as startpoints\n");
254 while ((arg=*++argv)) {
258 if (ferror(stdout) || fclose(stdout)) {
259 perror("summer: stdout (at end)"); exit(12);
262 fputs("summer: done.\n", stderr);