examples/string.txt


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    string.txt
    Scott Bronson
    bronson@trestle.com


This describes the format of RPM_I18NSTRING_TYPE or RPM_STRING_ARRAY_TYPE,
I could not find this documented anywhere except the source of rpmlib.

This memory block consists of count charptrs pointing to strings further
along in the block.  A brief example for a count of 2 (as returned by
headerGetEntry), using typedef to illustrate the structure:

      count = 2;
      typedef struct block {   # beginning of malloc'd block
          char *c1 = &s1;      # points to s1 below
          char *c2 = &s2;      # points to s2 below
          char s1[] = "data for string 1";
          char s2[] = "data for string 2";
      }                        # end of malloc'd block


And, if count were three, this would be the result:

      count = 2;
      typedef struct block {   # beginning of malloc'd block
          char *c1 = &s1;      # points to s1 below
          char *c2 = &s2;      # points to s2 below
          char *c3 = &s3;      # points to s2 below
          char s1[] = "data for string 1";
          char s2[] = "data for string 2";
          char s3[] = "data for string 3";
      }                        # end of malloc'd block


Therefore, to print out all the strings in one of these blocks in order...
(p and count are values returned by rpmlib)

      for( i=0; i<count; i++ ) {
          printf( "String %d: %s\n", i, *((char**)p+i) );
      }