diff options
Diffstat (limited to 'libc/pwd_grp')
| -rw-r--r-- | libc/pwd_grp/__getgrent.c | 85 | ||||
| -rw-r--r-- | libc/pwd_grp/getgrgid.c | 31 |
2 files changed, 62 insertions, 54 deletions
diff --git a/libc/pwd_grp/__getgrent.c b/libc/pwd_grp/__getgrent.c index 911bdd66f..0827df131 100644 --- a/libc/pwd_grp/__getgrent.c +++ b/libc/pwd_grp/__getgrent.c @@ -30,14 +30,14 @@ */ struct group *__getgrent(int grp_fd) { -#ifndef GR_SCALE_DYNAMIC - static char line_buff[GR_MAX_LINE_LEN]; - static char *members[GR_MAX_MEMBERS]; -#else +#ifdef GR_SCALE_DYNAMIC static char *line_buff = NULL; static char **members = NULL; short line_index; short buff_size; +#else + static char line_buff[GR_MAX_LINE_LEN]; + static char *members[GR_MAX_MEMBERS]; #endif static struct group group; register char *ptr; @@ -54,30 +54,7 @@ struct group *__getgrent(int grp_fd) buff_size = 256; #endif -#ifndef GR_SCALE_DYNAMIC - /* Read the line into the static buffer */ - if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0) - return NULL; - field_begin = strchr(line_buff, '\n'); - if (field_begin != NULL) - lseek(grp_fd, (long) (1 + field_begin - (line_buff + line_len)), - SEEK_CUR); - else { /* The line is too long - skip it :-\ */ - - do { - if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0) - return NULL; - } while (!(field_begin = strchr(line_buff, '\n'))); - lseek(grp_fd, (long) ((field_begin - line_buff) - line_len + 1), - SEEK_CUR); - goto restart; - } - if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' || - *line_buff == '\t') - goto restart; - *field_begin = '\0'; - -#else /* !GR_SCALE_DYNAMIC */ +#ifdef GR_SCALE_DYNAMIC line_buff = realloc(line_buff, buff_size); while (1) { if ((line_len = read(grp_fd, line_buff + line_index, @@ -100,6 +77,28 @@ struct group *__getgrent(int grp_fd) line_buff = realloc(line_buff, buff_size); } } +#else + /* Read the line into the static buffer */ + if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0) + return NULL; + field_begin = strchr(line_buff, '\n'); + if (field_begin != NULL) + lseek(grp_fd, (long) (1 + field_begin - (line_buff + line_len)), + SEEK_CUR); + else { /* The line is too long - skip it :-\ */ + + do { + if ((line_len = read(grp_fd, line_buff, GR_MAX_LINE_LEN)) <= 0) + return NULL; + } while (!(field_begin = strchr(line_buff, '\n'))); + lseek(grp_fd, (long) ((field_begin - line_buff) - line_len + 1), + SEEK_CUR); + goto restart; + } + if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' || + *line_buff == '\t') + goto restart; + *field_begin = '\0'; #endif /* GR_SCALE_DYNAMIC */ /* Now parse the line */ @@ -128,7 +127,20 @@ struct group *__getgrent(int grp_fd) member_num = 0; field_begin = ptr; -#ifndef GR_SCALE_DYNAMIC +#ifdef GR_SCALE_DYNAMIC + if (members != NULL) + free(members); + members = (char **) malloc((member_num + 1) * sizeof(char *)); + for ( ; field_begin && *field_begin != '\0'; field_begin = ptr) { + if ((ptr = strchr(field_begin, ',')) != NULL) + *ptr++ = '\0'; + members[member_num++] = field_begin; + members = (char **) realloc(members, + (member_num + 1) * sizeof(char *)); + } + members[member_num] = NULL; + +#else while ((ptr = strchr(ptr, ',')) != NULL) { *ptr = '\0'; ptr++; @@ -142,20 +154,7 @@ struct group *__getgrent(int grp_fd) members[member_num] = field_begin; members[member_num + 1] = NULL; } -#else /* !GR_SCALE_DYNAMIC */ - if (members != NULL) - free(members); - members = (char **) malloc((member_num + 1) * sizeof(char *)); - for ( ; field_begin && *field_begin != '\0'; field_begin = ptr) { - if ((ptr = strchr(field_begin, ',')) != NULL) - *ptr++ = '\0'; - members[member_num++] = field_begin; - members = (char **) realloc(members, - (member_num + 1) * sizeof(char *)); - } - members[member_num] = NULL; -#endif /* GR_SCALE_DYNAMIC */ - +#endif group.gr_mem = members; return &group; } diff --git a/libc/pwd_grp/getgrgid.c b/libc/pwd_grp/getgrgid.c index 1eaed64c0..dc9176d39 100644 --- a/libc/pwd_grp/getgrgid.c +++ b/libc/pwd_grp/getgrgid.c @@ -26,18 +26,27 @@ struct group *getgrgid(const gid_t gid) { - struct group *group; - int grp_fd; + struct group *group; + int grp_fd; - if ((grp_fd = open(_PATH_GROUP, O_RDONLY)) < 0) - return NULL; + if ((grp_fd = open(_PATH_GROUP, O_RDONLY)) < 0) + return NULL; - while ((group = __getgrent(grp_fd)) != NULL) - if (group->gr_gid == gid) { - close(grp_fd); - return group; - } + while ((group = __getgrent(grp_fd)) != NULL) + if (group->gr_gid == gid) { + close(grp_fd); + return group; + } + + close(grp_fd); + return NULL; +} + +#if 0 +/* Search for an entry with a matching group ID. */ +int getgrgid_r (gid_t gid, struct group *resultbuf, char *buffer, + size_t buflen, struct group **result) +{ - close(grp_fd); - return NULL; } +#endif |