X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fexec.c;h=b9a7365effe5ab8ef8edd0ec9aba7d3645bb1c47;hb=9f6f901889d4c9f594b5ae1fd0f449fcdd2d8fe3;hp=14d288f1f419f78df74f26fd2b9b10afcbfe63d5;hpb=c7b0f0b0267f2ab7c84eea8306f0a516f5b8f769;p=collectd.git diff --git a/src/exec.c b/src/exec.c index 14d288f1..b9a7365e 100644 --- a/src/exec.c +++ b/src/exec.c @@ -287,71 +287,11 @@ static void set_environment (void) /* {{{ */ } /* }}} void set_environment */ __attribute__((noreturn)) -static void exec_child (program_list_t *pl) /* {{{ */ +static void exec_child (program_list_t *pl, int uid, int gid, int egid) /* {{{ */ { int status; - int uid; - int gid; - int egid; - - struct passwd *sp_ptr; - struct passwd sp; - char nambuf[2048]; char errbuf[1024]; - sp_ptr = NULL; - status = getpwnam_r (pl->user, &sp, nambuf, sizeof (nambuf), &sp_ptr); - if (status != 0) - { - ERROR ("exec plugin: Failed to get user information for user ``%s'': %s", - pl->user, sstrerror (errno, errbuf, sizeof (errbuf))); - exit (-1); - } - if (sp_ptr == NULL) - { - ERROR ("exec plugin: No such user: `%s'", pl->user); - exit (-1); - } - - uid = sp.pw_uid; - gid = sp.pw_gid; - if (uid == 0) - { - ERROR ("exec plugin: Cowardly refusing to exec program as root."); - exit (-1); - } - - /* The group configured in the configfile is set as effective group, because - * this way the forked process can (re-)gain the user's primary group. */ - egid = -1; - if (NULL != pl->group) - { - if ('\0' != *pl->group) { - struct group *gr_ptr = NULL; - struct group gr; - - status = getgrnam_r (pl->group, &gr, nambuf, sizeof (nambuf), &gr_ptr); - if (0 != status) - { - ERROR ("exec plugin: Failed to get group information " - "for group ``%s'': %s", pl->group, - sstrerror (errno, errbuf, sizeof (errbuf))); - exit (-1); - } - if (NULL == gr_ptr) - { - ERROR ("exec plugin: No such group: `%s'", pl->group); - exit (-1); - } - - egid = gr.gr_gid; - } - else - { - egid = gid; - } - } /* if (pl->group == NULL) */ - #if HAVE_SETGROUPS if (getuid () == 0) { @@ -429,6 +369,14 @@ static int fork_child (program_list_t *pl, int *fd_in, int *fd_out, int *fd_err) int status; int pid; + int uid; + int gid; + int egid; + + struct passwd *sp_ptr; + struct passwd sp; + char nambuf[2048]; + if (pl->pid != 0) return (-1); @@ -456,6 +404,59 @@ static int fork_child (program_list_t *pl, int *fd_in, int *fd_out, int *fd_err) return (-1); } + sp_ptr = NULL; + status = getpwnam_r (pl->user, &sp, nambuf, sizeof (nambuf), &sp_ptr); + if (status != 0) + { + ERROR ("exec plugin: Failed to get user information for user ``%s'': %s", + pl->user, sstrerror (errno, errbuf, sizeof (errbuf))); + return (-1); + } + if (sp_ptr == NULL) + { + ERROR ("exec plugin: No such user: `%s'", pl->user); + return (-1); + } + + uid = sp.pw_uid; + gid = sp.pw_gid; + if (uid == 0) + { + ERROR ("exec plugin: Cowardly refusing to exec program as root."); + return (-1); + } + + /* The group configured in the configfile is set as effective group, because + * this way the forked process can (re-)gain the user's primary group. */ + egid = -1; + if (NULL != pl->group) + { + if ('\0' != *pl->group) { + struct group *gr_ptr = NULL; + struct group gr; + + status = getgrnam_r (pl->group, &gr, nambuf, sizeof (nambuf), &gr_ptr); + if (0 != status) + { + ERROR ("exec plugin: Failed to get group information " + "for group ``%s'': %s", pl->group, + sstrerror (errno, errbuf, sizeof (errbuf))); + return (-1); + } + if (NULL == gr_ptr) + { + ERROR ("exec plugin: No such group: `%s'", pl->group); + return (-1); + } + + egid = gr.gr_gid; + } + else + { + egid = gid; + } + } /* if (pl->group == NULL) */ + pid = fork (); if (pid < 0) { @@ -493,7 +494,7 @@ static int fork_child (program_list_t *pl, int *fd_in, int *fd_out, int *fd_err) close (fd_pipe_out[1]); } - /* Now connect the `out' pipe to STDOUT */ + /* Now connect the `err' pipe to STDERR */ if (fd_pipe_err[1] != STDERR_FILENO) { dup2 (fd_pipe_err[1], STDERR_FILENO); @@ -505,7 +506,7 @@ static int fork_child (program_list_t *pl, int *fd_in, int *fd_out, int *fd_err) /* Unblock all signals */ reset_signal_mask (); - exec_child (pl); + exec_child (pl, uid, gid, egid); /* does not return */ } @@ -743,8 +744,8 @@ static void *exec_notification_one (void *arg) /* {{{ */ fprintf (fh, "Severity: %s\n" - "Time: %.3f\n", - severity, CDTIME_T_TO_DOUBLE (n->time)); + "Time: %u\n", + severity, (unsigned int)CDTIME_T_TO_TIME_T(n->time)); /* Print the optional fields */ if (strlen (n->host) > 0)