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/* SPDX-License-Identifier: GPL-3.0-or-later */
#include "config.h"
#include "internal.h"
sparse_map_t *read_sparse_map(const char *line)
{
sparse_map_t *last = NULL, *list = NULL, *ent = NULL;
do {
ent = calloc(1, sizeof(*ent));
if (ent == NULL)
goto fail_errno;
if (pax_read_decimal(line, &ent->offset))
goto fail_format;
while (isdigit(*line))
++line;
if (*(line++) != ',')
goto fail_format;
if (pax_read_decimal(line, &ent->count))
goto fail_format;
while (isdigit(*line))
++line;
if (last == NULL) {
list = last = ent;
} else {
last->next = ent;
last = ent;
}
} while (*(line++) == ',');
return list;
fail_errno:
perror("parsing GNU pax sparse file record");
goto fail;
fail_format:
fputs("malformed GNU pax sparse file record\n", stderr);
goto fail;
fail:
free_sparse_list(list);
free(ent);
return NULL;
}
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