diff options
Diffstat (limited to 'libc-top-half/musl/src/passwd/getgrent_a.c')
-rw-r--r-- | libc-top-half/musl/src/passwd/getgrent_a.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/passwd/getgrent_a.c b/libc-top-half/musl/src/passwd/getgrent_a.c new file mode 100644 index 0000000..7fc389d --- /dev/null +++ b/libc-top-half/musl/src/passwd/getgrent_a.c @@ -0,0 +1,68 @@ +#include "pwf.h" +#include <pthread.h> + +static unsigned atou(char **s) +{ + unsigned x; + for (x=0; **s-'0'<10U; ++*s) x=10*x+(**s-'0'); + return x; +} + +int __getgrent_a(FILE *f, struct group *gr, char **line, size_t *size, char ***mem, size_t *nmem, struct group **res) +{ + ssize_t l; + char *s, *mems; + size_t i; + int rv = 0; + int cs; + pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs); + for (;;) { + if ((l=getline(line, size, f)) < 0) { + rv = ferror(f) ? errno : 0; + free(*line); + *line = 0; + gr = 0; + goto end; + } + line[0][l-1] = 0; + + s = line[0]; + gr->gr_name = s++; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; gr->gr_passwd = s; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; gr->gr_gid = atou(&s); + if (*s != ':') continue; + + *s++ = 0; mems = s; + break; + } + + for (*nmem=!!*s; *s; s++) + if (*s==',') ++*nmem; + free(*mem); + *mem = calloc(sizeof(char *), *nmem+1); + if (!*mem) { + rv = errno; + free(*line); + *line = 0; + gr = 0; + goto end; + } + if (*mems) { + mem[0][0] = mems; + for (s=mems, i=0; *s; s++) + if (*s==',') *s++ = 0, mem[0][++i] = s; + mem[0][++i] = 0; + } else { + mem[0][0] = 0; + } + gr->gr_mem = *mem; +end: + pthread_setcancelstate(cs, 0); + *res = gr; + if(rv) errno = rv; + return rv; +} |