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/*
* Revision Control Information
*
* /projects/hsis/CVS/utilities/util/texpand.c,v
* rajeev
* 1.3
* 1995/08/08 22:41:36
*
*/
#include "util.h"
#if HAVE_PWD_H
# include <pwd.h>
#endif
char *
util_tilde_expand(fname)
char *fname;
{
#if HAVE_PWD_H
struct passwd *userRecord;
char username[256], *filename, *dir;
register int i, j;
filename = ALLOC(char, strlen(fname) + 256);
/* Clear the return string */
i = 0;
filename[0] = '\0';
/* Tilde? */
if (fname[0] == '~') {
j = 0;
i = 1;
while ((fname[i] != '\0') && (fname[i] != '/')) {
username[j++] = fname[i++];
}
username[j] = '\0';
dir = (char *)0;
if (username[0] == '\0') {
/* ~/ resolves to home directory of current user */
userRecord = getpwuid(getuid());
if (userRecord) dir = userRecord->pw_dir;
} else {
/* Special check for ~octtools */
if (!strcmp(username,"octtools"))
dir = getenv("OCTTOOLS");
/* ~user/ resolves to home directory of 'user' */
if (!dir) {
userRecord = getpwnam(username);
if (userRecord) dir = userRecord->pw_dir;
}
}
if (dir) (void) strcat(filename, dir);
else i = 0; /* leave fname as-is */
} /* if tilde */
/* Concantenate remaining portion of file name */
(void) strcat(filename, fname + i);
return filename;
#else
return util_strsav(fname);
#endif
}
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