Seekdir(3), strcmp(3), strcoll(3), strverscmp(3), telldir(3) COLOPHON top SEE ALSO top closedir(3), fnmatch(3), opendir(3), readdir(3), rewinddir(3), N = scandir(".", &namelist, NULL, alphasort) The program below prints a list of the files in the current The type-safe const struct dirent **, and glibc 2.10 changed theĭefinition of alphasort() (and the nonstandard versionsort()) to Standardized in POSIX.1-2008, the argument type was specified as Versionsort() were typed as const void *. Since glibc 2.1, alphasort() calls strcoll(3) earlier it usedīefore glibc 2.10, the two arguments of alphasort() and Versionsort() and scandirat() are GNU extensions. │ alphasort(), versionsort() │ Thread safety │ MT-Safe locale │ │ scandir(), scandirat() │ Thread safety │ MT-Safe │ Scandirat() was added to glibc in version 2.15.įor an explanation of the terms used in this section, see VERSIONS top versionsort() was added to glibc in version 2.1. ( scandirat()) dirp is a relative pathname and dirfd is aįile descriptor referring to a file other than a Is considered to be respectively less than, equal to, or greaterĮRRORS top EBADF ( scandirat()) dirp is relative but dirfd is neitherĮNOMEM Insufficient memory to complete the operation. Less than, equal to, or greater than zero if the first argument The alphasort() and versionsort() functions return an integer On error, -1 is returned, with errno set to indicate The scandir() function returns the number of directory entries See openat(2) for an explanation of the need for scandirat(). If dirp is absolute, then dirfd is ignored.
If dirp is relative and dirfd is the special value AT_FDCWD, thenĭirp is interpreted relative to the current working directory of The calling process, as is done by scandir() for a relative Relative to the directory referred to by the file descriptorĭirfd (rather than relative to the current working directory of If the pathname given in dirp is relative, then it is interpreted Scandir(), except for the differences described here. The scandirat() function operates in exactly the same way as #include int scandirat(int dirfd, const char *restrict dirp, struct dirent ***restrict namelist, int (* filter )(const struct dirent *), int (* compar )(const struct dirent **, const struct dirent **)) įeature Test Macro Requirements for glibc (see SYNOPSIS top #include int scandir(const char *restrict dirp, struct dirent ***restrict namelist, int (* filter )(const struct dirent *), int (* compar )(const struct dirent **, const struct dirent **)) int alphasort(const struct dirent ** a, const struct dirent ** b ) int versionsort(const struct dirent ** a, const struct dirent ** b ) #include /* Definition of AT_* constants */ Scandir, scandirat, alphasort, versionsort - scan a directory for
LIST DIRECTORY CONTENTS USING SCANDIR C MANUAL
SCANDIR(3) Linux Programmer's Manual SCANDIR(3) NAME top
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