Mercurial > dovecot > original-hg > dovecot-1.2

annotate src/lib/unlink-old-files.c @ 8590:b9faf4db2a9f HEAD

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Updated copyright notices to include year 2009.
author Timo Sirainen <tss@iki.fi>
date Tue, 06 Jan 2009 09:25:38 -0500
parents e6693a0ec8e1
children 00cd9aacd03c
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8590
b9faf4db2a9f Updated copyright notices to include year 2009.
Timo Sirainen <tss@iki.fi>
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diff changeset
1 /* Copyright (c) 2002-2009 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "ioloop.h"
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5 #include "str.h"
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6 #include "unlink-old-files.h"
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7
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8 #include <stdlib.h>
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9 #include <signal.h>
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10 #include <unistd.h>
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11 #include <dirent.h>
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12 #include <sys/stat.h>
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13 #include <utime.h>
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14
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15 static int
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16 unlink_old_files_real(const char *dir, const char *prefix, time_t min_time)
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17 {
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18 DIR *dirp;
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19 struct dirent *d;
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20 struct stat st;
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21 string_t *path;
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22 unsigned int prefix_len, dir_len;
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23
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24 dirp = opendir(dir);
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25 if (dirp == NULL) {
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26 if (errno != ENOENT)
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27 i_error("opendir(%s) failed: %m", dir);
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28 return -1;
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29 }
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30
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31 path = t_str_new(256);
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32 str_printfa(path, "%s/", dir);
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33 dir_len = str_len(path);
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34
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35 prefix_len = strlen(prefix);
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36 while ((d = readdir(dirp)) != NULL) {
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37 if (d->d_name[0] == '.' &&
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38 (d->d_name[1] == '\0' ||
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39 (d->d_name[1] == '.' && d->d_name[2] == '\0'))) {
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40 /* skip . and .. */
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41 continue;
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42 }
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43 if (strncmp(d->d_name, prefix, prefix_len) != 0)
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44 continue;
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45
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46 str_truncate(path, dir_len);
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47 str_append(path, d->d_name);
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48 if (stat(str_c(path), &st) < 0) {
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49 if (errno != ENOENT)
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50 i_error("stat(%s) failed: %m", str_c(path));
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51 } else if (!S_ISDIR(st.st_mode) && st.st_ctime < min_time) {
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52 if (unlink(str_c(path)) < 0 && errno != ENOENT)
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53 i_error("unlink(%s) failed: %m", str_c(path));
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54 }
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55 }
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56
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57 #ifdef HAVE_DIRFD
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58 if (fstat(dirfd(dirp), &st) < 0)
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59 i_error("fstat(%s) failed: %m", dir);
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60 #else
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61 if (stat(dir, &st) < 0)
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62 i_error("stat(%s) failed: %m", dir);
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63 #endif
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64 else if (st.st_atime < ioloop_time) {
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65 /* mounted with noatime. update it ourself. */
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66 if (utime(dir, NULL) < 0 && errno != ENOENT)
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67 i_error("utime(%s) failed: %m", dir);
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68 }
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69
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70 if (closedir(dirp) < 0)
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71 i_error("closedir(%s) failed: %m", dir);
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72 return 0;
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73 }
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74
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75 int unlink_old_files(const char *dir, const char *prefix, time_t min_time)
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76 {
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77 int ret;
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78
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79 T_BEGIN {
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80 ret = unlink_old_files_real(dir, prefix, min_time);
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81 } T_END;
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82 return ret;
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83 }