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Reobos/mkdir_p.c

Last active December 5, 2022 09:13
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Revisions

  1. Kyle Chisholm revised this gist Jul 5, 2018. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion mkdir_p.c
    View file
    Original file line number Diff line number Diff line change
    @@ -1,9 +1,9 @@
    /* recursive mkdir based on
    http://nion.modprobe.de/blog/archives/357-Recursive-directory-creation.html
    */
    #include <unistd.h>
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <stdio.h>
    #include <string.h>

    #define PATH_MAX_STRING_SIZE 256
  2. Kyle Chisholm revised this gist Jul 5, 2018. 1 changed file with 13 additions and 5 deletions.
    18 changes: 13 additions & 5 deletions mkdir_p.c
    View file
    Original file line number Diff line number Diff line change
    @@ -14,19 +14,27 @@ int mkdir_p(const char *dir, const mode_t mode) {
    char *p = NULL;
    struct stat sb;
    size_t len;

    /* copy path */
    strncpy(tmp, dir, sizeof(tmp));
    len = strlen(tmp);
    if (len >= sizeof(tmp)) {
    len = strnlen (dir, PATH_MAX_STRING_SIZE);
    if (len == 0 || len == PATH_MAX_STRING_SIZE) {
    return -1;
    }
    memcpy (tmp, dir, len);
    tmp[len] = '\0';

    /* remove trailing slash */
    if(tmp[len - 1] == '/') {
    tmp[len - 1] = 0;
    tmp[len - 1] = '\0';
    }

    /* check if path exists and is a directory */
    if (stat (tmp, &sb) == 0) {
    if (S_ISDIR (sb.st_mode)) {
    return 0;
    }
    }

    /* recursive mkdir */
    for(p = tmp + 1; *p; p++) {
    if(*p == '/') {
  3. Kyle Chisholm created this gist Mar 9, 2016.
    58 changes: 58 additions & 0 deletions mkdir_p.c
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,58 @@
    /* recursive mkdir based on
    http://nion.modprobe.de/blog/archives/357-Recursive-directory-creation.html
    */
    #include <sys/types.h>
    #include <sys/stat.h>
    #include <stdio.h>
    #include <string.h>

    #define PATH_MAX_STRING_SIZE 256

    /* recursive mkdir */
    int mkdir_p(const char *dir, const mode_t mode) {
    char tmp[PATH_MAX_STRING_SIZE];
    char *p = NULL;
    struct stat sb;
    size_t len;

    /* copy path */
    strncpy(tmp, dir, sizeof(tmp));
    len = strlen(tmp);
    if (len >= sizeof(tmp)) {
    return -1;
    }

    /* remove trailing slash */
    if(tmp[len - 1] == '/') {
    tmp[len - 1] = 0;
    }

    /* recursive mkdir */
    for(p = tmp + 1; *p; p++) {
    if(*p == '/') {
    *p = 0;
    /* test path */
    if (stat(tmp, &sb) != 0) {
    /* path does not exist - create directory */
    if (mkdir(tmp, mode) < 0) {
    return -1;
    }
    } else if (!S_ISDIR(sb.st_mode)) {
    /* not a directory */
    return -1;
    }
    *p = '/';
    }
    }
    /* test path */
    if (stat(tmp, &sb) != 0) {
    /* path does not exist - create directory */
    if (mkdir(tmp, mode) < 0) {
    return -1;
    }
    } else if (!S_ISDIR(sb.st_mode)) {
    /* not a directory */
    return -1;
    }
    return 0;
    }