X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=sbr%2Fcontext_save.c;h=0f7061a51e30b1a6ea88a5a95bb83a6cd58d1f2d;hp=d4a56edc624d7d26a162449d810cbc843774e3b5;hb=d4bcca1aa235370bc20bc2734c0cd6f700b17871;hpb=a485ed478abbd599d8c9aab48934e7a26733ecb1 diff --git a/sbr/context_save.c b/sbr/context_save.c index d4a56ed..0f7061a 100644 --- a/sbr/context_save.c +++ b/sbr/context_save.c @@ -1,25 +1,25 @@ /* - * context_save.c -- write out the updated context file - * - * This code is Copyright (c) 2002, by the authors of nmh. See the - * COPYRIGHT file in the root directory of the nmh distribution for - * complete copyright information. - */ - -#include -#include +** context_save.c -- write out the updated context file +** +** This code is Copyright (c) 2002, by the authors of nmh. See the +** COPYRIGHT file in the root directory of the nmh distribution for +** complete copyright information. +*/ /* - * static prototypes + * This function used to support setuid/setgid programs by writing + * the file as the user. But that code, m_chkids(), was removed + * because there no longer are setuid/setgid programs in nmh. */ -static int m_chkids(void); +#include +#include +#include void -context_save (void) +context_save(void) { - int action; - register struct node *np; + struct node *np; FILE *out; sigset_t set, oset; @@ -31,65 +31,20 @@ context_save (void) return; ctxflags &= ~CTXMOD; - if ((action = m_chkids ()) > 0) - return; /* child did it for us */ - /* block a few signals */ - sigemptyset (&set); - sigaddset (&set, SIGHUP); - sigaddset (&set, SIGINT); - sigaddset (&set, SIGQUIT); - sigaddset (&set, SIGTERM); - SIGPROCMASK (SIG_BLOCK, &set, &oset); - - if (!(out = lkfopen (ctxpath, "w"))) - adios (ctxpath, "unable to write"); + sigemptyset(&set); + sigaddset(&set, SIGHUP); + sigaddset(&set, SIGINT); + sigaddset(&set, SIGQUIT); + sigaddset(&set, SIGTERM); + sigprocmask(SIG_BLOCK, &set, &oset); + + if (!(out = lkfopen(ctxpath, "w"))) + adios(EX_IOERR, ctxpath, "unable to write"); for (np = m_defs; np; np = np->n_next) if (np->n_context) - fprintf (out, "%s: %s\n", np->n_name, np->n_field); - lkfclose (out, ctxpath); - - SIGPROCMASK (SIG_SETMASK, &oset, &set); /* reset the signal mask */ - - if (action == 0) - _exit (0); /* we are child, time to die */ -} - -/* - * This hack brought to you so we can handle set[ug]id MH programs. - * If we return -1, then no fork is made, we update .mh_profile - * normally, and return to the caller normally. If we return 0, - * then the child is executing, .mh_profile is modified after - * we set our [ug]ids to the norm. If we return > 0, then the - * parent is executed and .mh_profile has already be modified. - * We can just return to the caller immediately. - */ - -static int -m_chkids (void) -{ - int i; - pid_t pid; - - if (getuid () == geteuid ()) - return (-1); - - for (i = 0; (pid = fork ()) == -1 && i < 5; i++) - sleep (5); - - switch (pid) { - case -1: - break; - - case 0: - setgid (getgid ()); - setuid (getuid ()); - break; - - default: - pidwait (pid, -1); - break; - } + fprintf(out, "%s: %s\n", np->n_name, np->n_field); + lkfclose(out, ctxpath); - return pid; + sigprocmask(SIG_SETMASK, &oset, &set); /* reset the signal mask */ }