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util.h: detect if an error occurs in readdir() (thanks to Jim Meyering)

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This commit is contained in:
inikep 2016-07-26 11:07:37 +02:00
parent 5e0ed484f5
commit 7bc5c6b5cb
1 changed files with 7 additions and 0 deletions
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7
programs/util.h
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@ -284,6 +284,7 @@ UTIL_STATIC int UTIL_prepareFileList(const char *dirName, char** bufStart, size_
return 0;
}
errno = 0;
while ((entry = readdir(dir)) != NULL) {
if (strcmp (entry->d_name, "..") == 0 ||
strcmp (entry->d_name, ".") == 0) continue;
@ -310,8 +311,14 @@ UTIL_STATIC int UTIL_prepareFileList(const char *dirName, char** bufStart, size_
}
// printf ("%s/%s nbFiles=%d left=%d\n", dirName, entry->d_name, nbFiles, (int)(bufEnd - *bufStart));
}
errno = 0; // clear errno after UTIL_isDirectory, UTIL_prepareFileList
}
if (errno != 0) {
fprintf(stderr, "readdir(%s) error: %s\n", dirName, strerror(errno));
free(*bufStart);
*bufStart = NULL;
}
closedir(dir);
return nbFiles;
}