5
/* (C) 1998-2002 Red Hat, Inc. -- Licensing details are in the COPYING
6
file accompanying popt source distributions, available from
7
ftp://ftp.rpm.org/pub/rpm/dist. */
12
const char * findProgramPath(const char * argv0) {
13
char * path = getenv("PATH");
15
char * start, * chptr;
18
if (argv0 == NULL) return NULL; /* XXX can't happen */
19
/* If there is a / in the argv[0], it has to be an absolute path */
20
if (strchr(argv0, '/'))
21
return xstrdup(argv0);
23
if (path == NULL) return NULL;
25
start = pathbuf = alloca(strlen(path) + 1);
26
buf = malloc(strlen(path) + strlen(argv0) + sizeof("/"));
27
if (buf == NULL) return NULL; /* XXX can't happen */
28
strcpy(pathbuf, path);
33
if ((chptr = strchr(start, ':')))
35
sprintf(buf, "%s/%s", start, argv0);
37
if (!access(buf, X_OK))
44
} while (start && *start);