Re: Executing run command for scripts as su

Ahhh but that is another catch.. We don't have a c compiler for this environment and because it is so old I can get any c compiler. Do anyone of you have a compiler for me? ----- Original Message ----- From: "Doug Lawry" <lawry@nildram.co.uk> To: <informix-list@iiug.org> Sent: Thursday, June 24, 2004 2:52 PM Subject: Re: Executing run command for scripts as su That doesn't work on Shell scripts unless you: 1) compile the C program "setuid" (source follows); 2) use "chown root" and "chmod 4755" on this and the script; 3) run using "setuid script-path-name". -- Regards, Doug Lawry www.douglawry.webhop.org __________ __| setuid.c |______________________________________________________ /* Run a Shell script with "setuid" bits - Doug Lawry, 24/06/2004 */ #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> main(argc, argv) int argc; char *argv[]; { struct stat st; if (argc < 2) { fprintf(stderr, "Usage: %s command [arguments]\\n", argv[0]); exit(1); } if (stat(argv[1], &st) != 0) { fprintf(stderr, "%s: cannot stat %s\\n", argv[0], argv[1]); exit(2); } st.st_mode & S_ISGID && setgid(st.st_gid); st.st_mode & S_ISUID && setuid(st.st_uid); execvp(argv[1], ++argv); exit(3); } "Thomas Ronayne" <trona@REMOVETHISameritech.net> wrote: > Make root the owner of the script and set the so-called "su" bit on (see > man chmod, but usually chmod 4755 file will do it), that way it'll > execute as "root." > > Better yet, think it through -- why are you altering a file that belongs > to root? Is there an alternative? > > "Franz Gr'tzmacher" <franzg@biblesociety.co.za> wrote: > >> Hi All >> >> Do anybody know how I can execute a script that need to modify root owned >> files as a normal user. >> >> I am executing a script with the run command from within 4gl program. This >> script generates an index.html file on my Sco UNIX server but the problem is >> that the file belongs to root. I have already set the files permissions to >> 777 but still my normal user can't overwrite the new file. >> >> Is there a way to run as su ??? >> >> Our versions: >> SCO Unix vers 5.0.5 >> Informix SE 5.08.UD1 >> SQL vers 4.17.UC1 >> RDS vers 4.17.UC1 >> >> Thanx >> Franz Gr'tzmacher sending to informix-list

I thought SCO Unix 5.0.5 came with a C compiler as standard: check the CD. If not, install the free GNU C compiler. See: http://gcc.gnu.org ftp://ftp2.sco.com/pub/skunkware/osr5/devtools/gcc/ Franz Gr'tzmacher said: > Ahhh but that is another catch.. We don't have a c compiler for this > environment and because it is so old I can get any c compiler. Do anyone of > you have a compiler for me? > > > ----- Original Message ----- > From: "Doug Lawry" <lawry@nildram.co.uk> > To: <informix-list@iiug.org> > Sent: Thursday, June 24, 2004 2:52 PM > Subject: Re: Executing run command for scripts as su > > > That doesn't work on Shell scripts unless you: > > 1) compile the C program "setuid" (source follows); > 2) use "chown root" and "chmod 4755" on this and the script; > 3) run using "setuid script-path-name". > > -- > Regards, > Doug Lawry > www.douglawry.webhop.org > > __________ > __| setuid.c |______________________________________________________ > > /* Run a Shell script with "setuid" bits - Doug Lawry, 24/06/2004 */ > > #include <stdio.h> > #include <sys/types.h> > #include <sys/stat.h> > > main(argc, argv) > int argc; > char *argv[]; > { > struct stat st; > > if (argc < 2) { > fprintf(stderr, "Usage: %s command [arguments]\\n", argv[0]); > exit(1); > } > > if (stat(argv[1], &st) != 0) { > fprintf(stderr, "%s: cannot stat %s\\n", argv[0], argv[1]); > exit(2); > } > > st.st_mode & S_ISGID && setgid(st.st_gid); > st.st_mode & S_ISUID && setuid(st.st_uid); > > execvp(argv[1], ++argv); > > exit(3); > } > > "Thomas Ronayne" <trona@REMOVETHISameritech.net> wrote: > >> Make root the owner of the script and set the so-called "su" bit on (see >> man chmod, but usually chmod 4755 file will do it), that way it'll >> execute as "root." >> >> Better yet, think it through -- why are you altering a file that belongs >> to root? Is there an alternative? >> >> "Franz Gr'tzmacher" <franzg@biblesociety.co.za> wrote: >> >>> Hi All >>> >>> Do anybody know how I can execute a script that need to modify root owned >>> files as a normal user. >>> >>> I am executing a script with the run command from within 4gl program. This >>> script generates an index.html file on my Sco UNIX server but the problem >>> is that the file belongs to root. I have already set the files permissions >>> to 777 but still my normal user can't overwrite the new file. >>> >>> Is there a way to run as su ??? >>> >>> Our versions: >>> SCO Unix vers 5.0.5 >>> Informix SE 5.08.UD1 >>> SQL vers 4.17.UC1 >>> RDS vers 4.17.UC1 >>> >>> Thanx >>> Franz Gr'tzmacher

Doug Lawry wrote: > I thought SCO Unix 5.0.5 came with a C compiler as standard: check the CD. > If not, install the free GNU C compiler. See: > Nope - no free C compiler but you do have free headers Then - as you say - install GCC

I think you need the development kit. The last time I looked it could be downloaded, but I think you needed a username/password. I might still have a copy somewhere. I tried to install gcc from source but it threw a wobbler and I couldn't find a binary install Doug Lawry wrote: > > I thought SCO Unix 5.0.5 came with a C compiler as standard: check the CD. > If not, install the free GNU C compiler. See: > > http://gcc.gnu.org > ftp://ftp2.sco.com/pub/skunkware/osr5/devtools/gcc/ > > Franz Gr'tzmacher said: > > > Ahhh but that is another catch.. We don't have a c compiler for this > > environment and because it is so old I can get any c compiler. Do anyone of > > you have a compiler for me? > > > > > > ----- Original Message ----- > > From: "Doug Lawry" <lawry@nildram.co.uk> > > To: <informix-list@iiug.org> > > Sent: Thursday, June 24, 2004 2:52 PM > > Subject: Re: Executing run command for scripts as su > > > > > > That doesn't work on Shell scripts unless you: > > > > 1) compile the C program "setuid" (source follows); > > 2) use "chown root" and "chmod 4755" on this and the script; > > 3) run using "setuid script-path-name". > > > > -- > > Regards, > > Doug Lawry > > www.douglawry.webhop.org > > > > __________ > > __| setuid.c |______________________________________________________ > > > > /* Run a Shell script with "setuid" bits - Doug Lawry, 24/06/2004 */ > > > > #include <stdio.h> > > #include <sys/types.h> > > #include <sys/stat.h> > > > > main(argc, argv) > > int argc; > > char *argv[]; > > { > > struct stat st; > > > > if (argc < 2) { > > fprintf(stderr, "Usage: %s command [arguments]\\n", argv[0]); > > exit(1); > > } > > > > if (stat(argv[1], &st) != 0) { > > fprintf(stderr, "%s: cannot stat %s\\n", argv[0], argv[1]); > > exit(2); > > } > > > > st.st_mode & S_ISGID && setgid(st.st_gid); > > st.st_mode & S_ISUID && setuid(st.st_uid); > > > > execvp(argv[1], ++argv); > > > > exit(3); > > } > > > > "Thomas Ronayne" <trona@REMOVETHISameritech.net> wrote: > > > >> Make root the owner of the script and set the so-called "su" bit on (see > >> man chmod, but usually chmod 4755 file will do it), that way it'll > >> execute as "root." > >> > >> Better yet, think it through -- why are you altering a file that belongs > >> to root? Is there an alternative? > >> > >> "Franz Gr'tzmacher" <franzg@biblesociety.co.za> wrote: > >> > >>> Hi All > >>> > >>> Do anybody know how I can execute a script that need to modify root owned > >>> files as a normal user. > >>> > >>> I am executing a script with the run command from within 4gl program. This > >>> script generates an index.html file on my Sco UNIX server but the problem > >>> is that the file belongs to root. I have already set the files permissions > >>> to 777 but still my normal user can't overwrite the new file. > >>> > >>> Is there a way to run as su ??? > >>> > >>> Our versions: > >>> SCO Unix vers 5.0.5 > >>> Informix SE 5.08.UD1 > >>> SQL vers 4.17.UC1 > >>> RDS vers 4.17.UC1 > >>> > >>> Thanx > >>> Franz Gr'tzmacher -- Paul Watson # Oninit Ltd # Growing old is mandatory Tel: +44 1436 672201 # Growing up is optional Fax: +44 1436 678693 # Mob: +44 7818 003457 # www.oninit.com #