busybox/libbb/read_package_field.c

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//#include <stdio.h>
#include <string.h>
#include "libbb.h"
/*
* Returns a [multi-line] package field
*/
extern char *read_package_field(const char *package_buffer)
{
char *field = NULL;
int field_length = 0;
int buffer_length = 0;
buffer_length = strlen(package_buffer);
field = xcalloc(1, buffer_length + 1);
while ((field = strchr(&package_buffer[field_length], '\n')) != NULL) {
field_length = buffer_length - strlen(field);
if (package_buffer[field_length + 1] != ' ') {
break;
} else {
field_length++;
}
}
if (field_length == 0) {
return(NULL);
} else {
return(xstrndup(package_buffer, field_length));
}
}