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#include "util.h"
#include <unistd.h> /* for access() */
#include <stdlib.h> /* for getenv() */
#include <stdio.h> /* for sprintf(), fopen() */
/* Equivalent to fopen() but uses find_file() to find the path to the filename. */
FILE *open_file(const char *filename, const char *mode)
{
char *path;
path = find_file(filename);
if (!path) return NULL;
return fopen(path,mode);
}
/* Returns the full path to `filename` by searching the current working
* directory and the path specified by the environment variable SDDM_DATA.
*
* Returns a pointer to the full path on success or NULL if the file isn't
* found. */
char *find_file(const char *filename)
{
static char path[256];
char *dir;
/* First check in the current working directory. */
sprintf(path, "%s", filename);
if (access(path, F_OK) == 0) return path;
/* Now check in the directory specified by the environment variable
* SDDM_DATA. */
dir = getenv("SDDM_DATA");
if (dir) {
sprintf(path, "%s/%s", dir,filename);
if (access(path, F_OK) == 0) return path;
}
return NULL;
}
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