diff options
Diffstat (limited to 'src/rc/start-stop-daemon.c')
| -rw-r--r-- | src/rc/start-stop-daemon.c | 86 |
1 files changed, 72 insertions, 14 deletions
diff --git a/src/rc/start-stop-daemon.c b/src/rc/start-stop-daemon.c index fd281a1d..6bb821c5 100644 --- a/src/rc/start-stop-daemon.c +++ b/src/rc/start-stop-daemon.c @@ -96,10 +96,10 @@ typedef struct scheduleitem TAILQ_ENTRY(scheduleitem) entries; } SCHEDULEITEM; TAILQ_HEAD(, scheduleitem) schedule; -static char **nav = NULL; +static char **nav; extern const char *applet; -static char *changeuser = NULL; +static char *changeuser, *ch_root, *ch_dir; extern char **environ; @@ -498,6 +498,45 @@ static void handle_signal(int sig) errno = serrno; } +static char * +expand_home(const char *home, const char *path) +{ + char *pat, *p, *nh; + size_t len; + struct passwd *pw; + + if (!path || *path != '~') + return xstrdup(path); + + pat = xstrdup(path); + if (pat[1] != '/' && pat[1] != '\0') { + p = strchr(pat + 1, '/'); + if (p) + *p = '\0'; + pw = getpwnam(pat + 1); + if (pw) { + home = pw->pw_dir; + pat = p; + if (pat) + *pat = '/'; + } else + home = NULL; + } else + pat++; + + if (!home) { + free(pat); + return xstrdup(path); + } + if (!pat) + return xstrdup(home); + + len = strlen(pat) + strlen(home) + 1; + nh = xmalloc(len); + snprintf(nh, len, "%s%s", home, pat); + free(pat); + return nh; +} #include "_usage.h" #define getoptstring "KN:R:Sbc:d:e:g:k:mn:op:s:tu:r:x:1:2:" getoptstring_COMMON @@ -582,8 +621,7 @@ int start_stop_daemon(int argc, char **argv) bool makepidfile = false; uid_t uid = 0; gid_t gid = 0; - char *ch_root = NULL; - char *ch_dir = NULL; + char *home = NULL; int tid = 0; char *redirect_stderr = NULL; char *redirect_stdout = NULL; @@ -624,6 +662,14 @@ int start_stop_daemon(int argc, char **argv) eerror("%s: invalid nice level `%s' (SSD_NICELEVEL)", applet, tmp); + /* Get our initial dir */ + home = getenv("HOME"); + if (!home) { + pw = getpwuid(getuid()); + if (pw) + home = pw->pw_dir; + } + while ((opt = getopt_long(argc, argv, getoptstring, longopts, (int *) 0)) != -1) switch (opt) { @@ -633,7 +679,8 @@ int start_stop_daemon(int argc, char **argv) case 'N': /* --nice */ if (sscanf(optarg, "%d", &nicelevel) != 1) - eerrorx("%s: invalid nice level `%s'", applet, optarg); + eerrorx("%s: invalid nice level `%s'", + applet, optarg); break; case 'R': /* --retry <schedule>|<timeout> */ @@ -659,10 +706,12 @@ int start_stop_daemon(int argc, char **argv) else pw = getpwuid((uid_t) tid); - if (! pw) - eerrorx("%s: user `%s' not found", applet, tmp); + if (!pw) + eerrorx("%s: user `%s' not found", + applet, tmp); uid = pw->pw_uid; - if (! gid) + home = pw->pw_dir; + if (!gid) gid = pw->pw_gid; if (p) { @@ -672,8 +721,9 @@ int start_stop_daemon(int argc, char **argv) else gr = getgrgid((gid_t) tid); - if (! gr) - eerrorx("%s: group `%s' not found", + if (!gr) + eerrorx("%s: group `%s'" + " not found", applet, tmp); gid = gr->gr_gid; } @@ -686,9 +736,10 @@ int start_stop_daemon(int argc, char **argv) case 'e': /* --env */ if (putenv(optarg) == 0) { - if (strncmp("HOME=", optarg, 5) == 0) + if (strncmp("HOME=", optarg, 5) == 0) { sethome = true; - else if (strncmp("USER=", optarg, 5) == 0) + home = strchr(optarg, '=') + 1; + } else if (strncmp("USER=", optarg, 5) == 0) setuser = true; } break; @@ -700,8 +751,9 @@ int start_stop_daemon(int argc, char **argv) else gr = getgrgid((gid_t) tid); - if (! gr) - eerrorx("%s: group `%s' not found", applet, optarg); + if (!gr) + eerrorx("%s: group `%s' not found", + applet, optarg); gid = gr->gr_gid; } break; @@ -835,6 +887,12 @@ int start_stop_daemon(int argc, char **argv) exit(EXIT_SUCCESS); } + /* Expand ~ */ + if (ch_dir && *ch_dir == '~') + ch_dir = expand_home(home, ch_dir); + if (ch_root && *ch_root == '~') + ch_root = expand_home(home, ch_root); + /* Validate that the binary exists if we are starting */ if (*exec == '/' || *exec == '.') { /* Full or relative path */ |