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fix buffer overrun in getgrent code when there are no group members

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This commit is contained in:
Rich Felker 2011-06-30 08:11:06 -04:00
parent f9ed11f3e1
commit fb62ae74d0
1 changed files with 8 additions and 4 deletions
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12
src/passwd/getgrent_a.c
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@ -37,10 +37,14 @@ struct group *__getgrent_a(FILE *f, struct group *gr, char **line, size_t *size,
*line = 0;
return 0;
}
mem[0][0] = mems;
for (s=mems, i=0; *s; s++)
if (*s==',') *s++ = 0, mem[0][++i] = s;
mem[0][++i] = 0;
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;
return gr;
}