libbb/read_package_field.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include "libbb.h"
   4
   5 /*
   6  * Returns a [multi-line] package field
   7  */
   8 extern char *read_package_field(const char *package_buffer)
   9 {
  10         char *field = NULL;
  11         int field_length = 0;
  12         int buffer_length = 0;
  13
  14         buffer_length = strlen(package_buffer);
  15
  16         while ((field = strchr(&package_buffer[field_length], '\n')) != NULL) {
  17                 field_length = buffer_length - strlen(field);
  18                 if (package_buffer[field_length + 1] != ' ') {
  19                         break;
  20                 } else {
  21                         field_length++;
  22                 }
  23         }
  24         if (field_length == 0) {
  25                 return(NULL);
  26         } else {
  27                 return(xstrndup(package_buffer, field_length));
  28         }
  29 }
  30