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path: root/libc/pwd_grp/__getgrent.c
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Diffstat (limited to 'libc/pwd_grp/__getgrent.c')
-rw-r--r--libc/pwd_grp/__getgrent.c240
1 files changed, 122 insertions, 118 deletions
diff --git a/libc/pwd_grp/__getgrent.c b/libc/pwd_grp/__getgrent.c
index 612f1124d..d1bf8e61e 100644
--- a/libc/pwd_grp/__getgrent.c
+++ b/libc/pwd_grp/__getgrent.c
@@ -29,140 +29,144 @@
* getgrent() except that it is passed a file descriptor. getgrent()
* is just a wrapper for this function.
*/
-struct group *
-__getgrent(int grp_fd)
+struct group *__getgrent(int grp_fd)
{
-#ifndef GR_SCALE_DYNAMIC
- static char line_buff[GR_MAX_LINE_LEN];
- static char * members[GR_MAX_MEMBERS];
+#ifndef GR_SCALE_DYNAMIC
+ static char line_buff[GR_MAX_LINE_LEN];
+ static char *members[GR_MAX_MEMBERS];
#else
- static char * line_buff = NULL;
- static char ** members = NULL;
- short line_index;
- short buff_size;
+ static char *line_buff = NULL;
+ static char **members = NULL;
+ short line_index;
+ short buff_size;
#endif
- static struct group group;
- register char * ptr;
- char * field_begin;
- short member_num;
- char * endptr;
- int line_len;
+ static struct group group;
+ register char *ptr;
+ char *field_begin;
+ short member_num;
+ char *endptr;
+ int line_len;
- /* We use the restart label to handle malformatted lines */
-restart:
+ /* We use the restart label to handle malformatted lines */
+ restart:
#ifdef GR_SCALE_DYNAMIC
- line_index=0;
- buff_size=256;
+ line_index = 0;
+ 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 */
- line_buff=realloc(line_buff, buff_size);
- while (1)
- {
- if ((line_len=read(grp_fd, line_buff+line_index,
- buff_size-line_index))<=0)
- return NULL;
- field_begin=strchr(line_buff, '\n');
- if (field_begin!=NULL)
- {
- lseek(grp_fd, (long) (1+field_begin-(line_len+line_index+line_buff)),
- SEEK_CUR);
- *field_begin='\0';
- if (*line_buff=='#' || *line_buff==' ' || *line_buff=='\n' ||
- *line_buff=='\t')
- goto restart;
- break;
+ /* 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;
}
- else /* Allocate some more space */
- {
- line_index=buff_size;
- buff_size+=256;
- line_buff=realloc(line_buff, buff_size);
+ if (*line_buff == '#' || *line_buff == ' ' || *line_buff == '\n' ||
+ *line_buff == '\t')
+ goto restart;
+ *field_begin = '\0';
+
+#else /* !GR_SCALE_DYNAMIC */
+ line_buff = realloc(line_buff, buff_size);
+ while (1) {
+ if ((line_len = read(grp_fd, line_buff + line_index,
+ buff_size - line_index)) <= 0)
+ return NULL;
+ field_begin = strchr(line_buff, '\n');
+ if (field_begin != NULL) {
+ lseek(grp_fd,
+ (long) (1 + field_begin -
+ (line_len + line_index + line_buff)), SEEK_CUR);
+ *field_begin = '\0';
+ if (*line_buff == '#' || *line_buff == ' '
+ || *line_buff == '\n' || *line_buff == '\t')
+ goto restart;
+ break;
+ } else { /* Allocate some more space */
+
+ line_index = buff_size;
+ buff_size += 256;
+ line_buff = realloc(line_buff, buff_size);
+ }
}
- }
-#endif /* GR_SCALE_DYNAMIC */
+#endif /* GR_SCALE_DYNAMIC */
- /* Now parse the line */
- group.gr_name=line_buff;
- ptr=strchr(line_buff, ':');
- if (ptr==NULL) goto restart;
- *ptr++='\0';
+ /* Now parse the line */
+ group.gr_name = line_buff;
+ ptr = strchr(line_buff, ':');
+ if (ptr == NULL)
+ goto restart;
+ *ptr++ = '\0';
- group.gr_passwd=ptr;
- ptr=strchr(ptr, ':');
- if (ptr==NULL) goto restart;
- *ptr++='\0';
+ group.gr_passwd = ptr;
+ ptr = strchr(ptr, ':');
+ if (ptr == NULL)
+ goto restart;
+ *ptr++ = '\0';
- field_begin=ptr;
- ptr=strchr(ptr, ':');
- if (ptr==NULL) goto restart;
- *ptr++='\0';
+ field_begin = ptr;
+ ptr = strchr(ptr, ':');
+ if (ptr == NULL)
+ goto restart;
+ *ptr++ = '\0';
- group.gr_gid=(gid_t) strtoul(field_begin, &endptr, 10);
- if (*endptr!='\0') goto restart;
+ group.gr_gid = (gid_t) strtoul(field_begin, &endptr, 10);
+ if (*endptr != '\0')
+ goto restart;
- member_num=0;
- field_begin=ptr;
+ member_num = 0;
+ field_begin = ptr;
#ifndef GR_SCALE_DYNAMIC
- while ((ptr=strchr(ptr, ','))!=NULL)
- {
- *ptr='\0';
- ptr++;
- members[member_num]=field_begin;
- field_begin=ptr;
- member_num++;
- }
- if (*field_begin=='\0')
- members[member_num]=NULL;
- else
- {
- members[member_num]=field_begin;
- members[member_num+1]=NULL;
- }
-#else /* !GR_SCALE_DYNAMIC */
- if (members!=NULL)
- free (members);
- members=(char **) malloc(1*sizeof(char *));
- while ((ptr=strchr(ptr, ','))!=NULL)
- {
- *ptr='\0';
- ptr++;
- members[member_num]=field_begin;
- field_begin=ptr;
- member_num++;
- members=(char **)realloc((void *)members, (member_num+1)*sizeof(char *));
- }
- if (*field_begin=='\0')
- members[member_num]=NULL;
- else
- {
- members[member_num]=field_begin;
- members[member_num+1]=NULL;
- }
-#endif /* GR_SCALE_DYNAMIC */
-
- group.gr_mem=members;
- return &group;
+ while ((ptr = strchr(ptr, ',')) != NULL) {
+ *ptr = '\0';
+ ptr++;
+ members[member_num] = field_begin;
+ field_begin = ptr;
+ member_num++;
+ }
+ if (*field_begin == '\0')
+ members[member_num] = NULL;
+ else {
+ members[member_num] = field_begin;
+ members[member_num + 1] = NULL;
+ }
+#else /* !GR_SCALE_DYNAMIC */
+ if (members != NULL)
+ free(members);
+ members = (char **) malloc(1 * sizeof(char *));
+
+ while ((ptr = strchr(ptr, ',')) != NULL) {
+ *ptr = '\0';
+ ptr++;
+ members[member_num] = field_begin;
+ field_begin = ptr;
+ member_num++;
+ members =
+ (char **) realloc((void *) members,
+
+ (member_num + 1) * sizeof(char *));
+ }
+ if (*field_begin == '\0')
+ members[member_num] = NULL;
+ else {
+ members[member_num] = field_begin;
+ members[member_num + 1] = NULL;
+ }
+#endif /* GR_SCALE_DYNAMIC */
+
+ group.gr_mem = members;
+ return &group;
}
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