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authorEric Andersen <andersen@codepoet.org>2002-08-08 07:28:33 +0000
committerEric Andersen <andersen@codepoet.org>2002-08-08 07:28:33 +0000
commitf6cfb61578920a2aba19afbf320e007efd863730 (patch)
treeccb2c728bbc974843bcdcad15be710ca0fdc432c /libc/pwd_grp/__getspent_r.c
parent82dc33223c219e05fe2637f675e11cd85438f7be (diff)
Fix locking
-Erik
Diffstat (limited to 'libc/pwd_grp/__getspent_r.c')
-rw-r--r--libc/pwd_grp/__getspent_r.c45
1 files changed, 21 insertions, 24 deletions
diff --git a/libc/pwd_grp/__getspent_r.c b/libc/pwd_grp/__getspent_r.c
index 2f87a1cc6..7150520d2 100644
--- a/libc/pwd_grp/__getspent_r.c
+++ b/libc/pwd_grp/__getspent_r.c
@@ -25,32 +25,29 @@
int __getspent_r(struct spwd * spwd, char * line_buff, size_t buflen, int spwd_fd)
{
- char *endptr;
- int line_len;
+ char *endptr;
+ int line_len;
- /* We use the restart label to handle malformatted lines */
- restart:
- /* Read the shadow line into the static buffer using a minimal of
- syscalls. */
- if ((line_len = read(spwd_fd, line_buff, buflen)) <= 0)
+ /* We use the restart label to handle malformatted lines */
+restart:
+ /* Read the shadow line into the buffer using a minimum of syscalls. */
+ if ((line_len = read(spwd_fd, line_buff, buflen)) <= 0)
+ return -1;
+ endptr = strchr(line_buff, '\n');
+ if (endptr != NULL)
+ lseek(spwd_fd, (long) (1 + endptr - (line_buff + line_len)), SEEK_CUR);
+ else {
+ /* The line is too long - skip it. :-\ */
+ do {
+ if ((line_len = read(spwd_fd, line_buff, buflen)) <= 0)
return -1;
- endptr = strchr(line_buff, '\n');
- if (endptr != NULL)
- lseek(spwd_fd, (long) (1 + endptr - (line_buff + line_len)),
- SEEK_CUR);
- else { /* The line is too long - skip it. :-\ */
+ } while (!(endptr = strchr(line_buff, '\n')));
+ lseek(spwd_fd, (long) (endptr - line_buff) - line_len + 1, SEEK_CUR);
+ goto restart;
+ }
- do {
- if ((line_len = read(spwd_fd, line_buff, buflen)) <= 0)
- return -1;
- } while (!(endptr = strchr(line_buff, '\n')));
- lseek(spwd_fd, (long) (endptr - line_buff) - line_len + 1,
- SEEK_CUR);
- goto restart;
- }
+ if (__sgetspent_r(line_buff, spwd, line_buff, buflen) < 0)
+ goto restart;
- if (__sgetspent_r(line_buff, spwd, line_buff, buflen) < 0)
- goto restart;
-
- return 0;
+ return 0;
}