"BruceMcF" <agil...@netscape.netwrote in message
news:03**********************************@b64g2000 hsa.googlegroups.com...
On Apr 15, 9:19 pm, "Aaron Gray" <ang.use...@gmail.comwrote:Ah, is there a function that searches the path for an executable and
returns
its path ?
Not a C Standard Library function ... that's outside the scope of the
standard. As I understand it, this is something that Unixen and
Windows handle differently. You may require a wrapper routine and an
OS specific definition of that wrapper routine to extract the
information.
This is, it turns out, a comp.lang.c FAQ:
http://www.faqs.org/faqs/C-faq/abridged/
QUOTE
19.31: How can my program discover the complete pathname to the
executable from which it was invoked?
A: argv[0] may contain all or part of the pathname. You may be
able to duplicate the command language interpreter's search path
logic to locate the executable.
UNQUOTE
In a system where argv[0] always contains the absolute pathname, the
wrapper would just parse argv[0].
In a system where argv[0] contains a filespec that might have been
used in combination with the path to find the file, then first check
if the argv[0] has an absolute path, and if not, try passing that
filespec to the path searching function. There normally will be a path
searching function in dir.h for, say, a Windows system, which can be
pressed into service.
... argv[0] holding the absolute pathname and filename is, of course,
more secure, but the MS-DOS legacy includes a lot of stuff that is a
bit slapdash.
Great, what an oversite :(I don't ... last time I was doing full on C programming, in the
Anyone got any code for this ?
mid-90's, it was all in PowerC from Mix, in DOS, for my own use, so I
was working in my own filesystem I had specified.
Maybe someone on comp.lang.c does? Follow-up reset to comp.lang.c
