18 lines
413 B
C
18 lines
413 B
C
#define _GNU_SOURCE
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#include <grp.h>
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#include <stdio.h>
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int putgrent(const struct group *gr, FILE *f)
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{
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int r;
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size_t i;
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flockfile(f);
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if ((r = fprintf(f, "%s:%s:%u:", gr->gr_name, gr->gr_passwd, gr->gr_gid))<0) goto done;
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if (gr->gr_mem) for (i=0; gr->gr_mem[i]; i++)
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if ((r = fprintf(f, "%s%s", i?",":"", gr->gr_mem[i]))<0) goto done;
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r = fputc('\n', f);
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done:
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funlockfile(f);
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return r<0 ? -1 : 0;
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}
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