mc/src/findme.c
Norbert Warmuth fb16422da4 1999-08-03 Norbert Warmuth <nwarmuth@privat.circular.de>
* src/poptalloca.h: New file with definitions for alloca. Note: alloca
is defined as malloc on systems which fail to support alloca. Don't
include this file if you frequently use alloca.

* src/findme.c, src/popt*.c: include poptalloca.h

* src/Makefile.in: added poptalloca.h

* src/menu.c (create_menu): set minimum menu width to 20 characters as
it used to be (this was part of davids patches but I haven't
applied it, yet).
1999-08-03 05:17:47 +00:00

58 lines
1.2 KiB
C

/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
file accompanying popt source distributions, available from
ftp://ftp.redhat.com/pub/code/popt */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "poptalloca.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#ifdef __NeXT
/* access macros are not declared in non posix mode in unistd.h -
don't try to use posix on NeXTstep 3.3 ! */
#include <libc.h>
#endif
#include "findme.h"
char * findProgramPath(char * argv0) {
char * path = getenv("PATH");
char * pathbuf;
char * start, * chptr;
char * buf;
/* If there is a / in the argv[0], it has to be an absolute
path */
if (strchr(argv0, '/'))
return strdup(argv0);
if (!path) return NULL;
start = pathbuf = alloca(strlen(path) + 1);
buf = malloc(strlen(path) + strlen(argv0) + 2);
strcpy(pathbuf, path);
chptr = NULL;
do {
if ((chptr = strchr(start, ':')))
*chptr = '\0';
sprintf(buf, "%s/%s", start, argv0);
if (!access(buf, X_OK))
return buf;
if (chptr)
start = chptr + 1;
else
start = NULL;
} while (start && *start);
free(buf);
return NULL;
}