diff options
Diffstat (limited to 'src/rc/rc-depend.c')
| -rw-r--r-- | src/rc/rc-depend.c | 63 |
1 files changed, 43 insertions, 20 deletions
diff --git a/src/rc/rc-depend.c b/src/rc/rc-depend.c index 1cd32ff..5d10da1 100644 --- a/src/rc/rc-depend.c +++ b/src/rc/rc-depend.c @@ -4,7 +4,7 @@ */ /* - * Copyright 2007-2008 Roy Marples <roy@marples.name> + * Copyright 2007-2009 Roy Marples <roy@marples.name> * All rights reserved * Redistribution and use in source and binary forms, with or without @@ -29,17 +29,21 @@ * SUCH DAMAGE. */ -#include <sys/types.h> #include <sys/stat.h> +#include <sys/time.h> +#include <sys/types.h> -#include <getopt.h> #include <errno.h> #include <fcntl.h> +#include <getopt.h> +#include <limits.h> #include <stdbool.h> #include <stdio.h> #include <stdlib.h> #include <string.h> +#include <time.h> #include <unistd.h> +#include <utime.h> #include "builtins.h" #include "einfo.h" @@ -49,13 +53,19 @@ extern const char *applet; RC_DEPTREE * -_rc_deptree_load(int *regen) { +_rc_deptree_load(int force, int *regen) { int fd; int retval; int serrno = errno; int merrno; - - if (rc_deptree_update_needed()) { + time_t t; + char file[PATH_MAX]; + struct stat st; + struct utimbuf ut; + FILE *fp; + + t = 0; + if (rc_deptree_update_needed(file, &t) || force != 0) { /* Test if we have permission to update the deptree */ fd = open(RC_DEPTREE_CACHE, O_WRONLY); merrno = errno; @@ -67,8 +77,30 @@ _rc_deptree_load(int *regen) { if (regen) *regen = 1; ebegin("Caching service dependencies"); - retval = rc_deptree_update(); - eend (retval ? 0 : -1, "Failed to update the dependency tree"); + retval = rc_deptree_update() ? 0 : -1; + eend (retval, "Failed to update the dependency tree"); + + if (retval == 0) { + stat(RC_DEPTREE_CACHE, &st); + if (st.st_mtime < t) { + eerror("Clock skew detected with `%s'", file); + eerrorn("Adjusting mtime of `" RC_DEPTREE_CACHE + "' to %s", ctime(&t)); + fp = fopen(RC_DEPTREE_SKEWED, "w"); + if (fp != NULL) { + fprintf(fp, RC_DEPTREE_SKEWED "\n"); + fclose(fp); + } + ut.actime = t; + ut.modtime = t; + utime(RC_DEPTREE_CACHE, &ut); + } else { + if (exists(RC_DEPTREE_SKEWED)) + unlink(RC_DEPTREE_SKEWED); + } + } + if (force == -1 && regen != NULL) + *regen = retval; } return rc_deptree_load(); } @@ -104,9 +136,8 @@ rc_depend(int argc, char **argv) RC_STRINGLIST *depends; RC_STRING *s; RC_DEPTREE *deptree = NULL; - int options = RC_DEP_TRACE; + int options = RC_DEP_TRACE, update = 0; bool first = true; - bool update = false; char *runlevel = xstrdup(getenv("RC_RUNLEVEL")); int opt; char *token; @@ -130,7 +161,7 @@ rc_depend(int argc, char **argv) rc_stringlist_add(types, token); break; case 'u': - update = true; + update = 1; break; case 'T': options &= RC_DEP_TRACE; @@ -140,15 +171,7 @@ rc_depend(int argc, char **argv) } } - if (update) { - ebegin("Caching service dependencies"); - update = rc_deptree_update(); - eend(update ? 0 : -1, "%s: %s", applet, strerror(errno)); - if (!update) - eerrorx("Failed to update the dependency tree"); - } - - if (!(deptree = _rc_deptree_load(NULL))) + if (!(deptree = _rc_deptree_load(update, NULL))) eerrorx("failed to load deptree"); if (!runlevel) |