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         int field_length = 0;
  11         int buffer_length = 0;
  12
  13         if (package_buffer == NULL) {
  14                 return(NULL);
  15         }
  16         buffer_length = strlen(package_buffer);
  17         field_length = strcspn(package_buffer, "\n");
  18         while (field_length < buffer_length) {
  19                 if (package_buffer[field_length + 1] != ' ') {
  20                         return(xstrndup(package_buffer, field_length));
  21                 }
  22                 field_length++;
  23                 field_length += strcspn(&package_buffer[field_length], "\n");
  24         }
  25         return(xstrdup(package_buffer));
  26 }
  27